CarLotz (LOTZ) POS AM 25 May 21 Prospectus update (post-effective amendment) Financial data

Document and Entity Information

Document and Entity Information	3 Months Ended
	Mar. 31, 2021
Document and Entity Information [Abstract]
Document Type	POS AM
Document Period End Date	Mar. 31, 2021
Entity Registrant Name	CarLotz, Inc.
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Central Index Key	0001759008
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 74,362	$ 2,208		$ 3,214
Restricted cash	227	605		888
Marketable securities - at fair value	173,644	1,032
Accounts receivable, net	9,324	4,132		3,256
Inventories	9,311	11,202		7,625
Other current assets	6,655	6,679		234
Total Current Assets	273,523	25,858		15,217
Property and equipment, net	2,349	1,868		631
Lease vehicles, net	58	173		444
Other assets	3,337	299		343
Total Assets	326,601	28,198		16,635
Current Liabilities:
Long-term debt, current	55	6,370		2,825
Floor plan notes payable	4,125	6,039		6,739
Accounts payable	9,423	6,283		2,134
Accrued transaction expenses	0	6,052
Accrued expenses	11,150	3,563		1,576
Accrued expenses - related party	0	5,082		3,102
Other current liabilities	815	256		434
Total Current Liabilities	25,568	33,645		16,810
Long-term debt, less current portion	1,250	2,999
Redeemable convertible preferred stock tranche obligation	0	2,832		3,755
Other liabilities	1,570	1,959		931
Total Liabilities	97,493	41,435		21,496
Commitments and Contingencies (Note 18)
Redeemable Convertible Preferred Stock:
Series A Preferred Stock, $0.001 stated value; authorized 3,052,127 shares; after recapitalization, there are no preferred shares issued or outstanding at December 31, 2021 and 2020	0	0
Stockholders' Equity (Deficit):
Common stock, $0.0001 par value; 500,000,000 authorized shares, 58,621,042 shares issued and outstanding at December 31, 2020 and 2019	11	6		6
Additional paid-in capital	278,272	20,779		22,618
Accumulated deficit	(49,059)	(34,037)		(27,485)
Accumulated other comprehensive income	(116)	15
Total Stockholders' Equity (Deficit)	229,108	(13,237)	$ (6,786)	(4,861)	$ 393	$ 7,816
Total Liabilities, Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit)	$ 326,601	28,198		16,635
Series A Preferred Stock
Current Liabilities:
Accrued expenses - related party		331		$ 250
Redeemable Convertible Preferred Stock:
Series A Preferred Stock, $0.001 stated value; authorized 3,052,127 shares; after recapitalization, there are no preferred shares issued or outstanding at December 31, 2021 and 2020		$ 0

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical)	Mar. 31, 2021USD ($)$ / sharesshares	Dec. 31, 2020$ / sharesUSD ($)shares	Dec. 31, 2019$ / sharesshares
Common stock par value (in dollars per share) | $ / shares	$ 0.0001	$ 0.0001	$ 0.0001
Common stock authorized	500,000,000	500,000,000	500,000,000
Common stock issued	113,670,060	58,621,042	58,621,042
Common stock outstanding	113,670,060	58,621,042	58,621,042
Treasury stock par value (in dollars per share)	0.001	0.001	0.001
Treasury stock ( in shares)	0	0	0
Series A Preferred Stock
Preferred stock par value (in dollars per share) | $ / shares	$ 0.001	$ 0.001	$ 0.001
Preferred stock authorized	3,052,127	3,052,127	3,052,127
Preferred stock issued	0
Preferred stock outstanding	0	0	0

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Finance and insurance, net	$ 1,554	$ 892	$ 3,898	$ 3,117	$ 1,608
Lease income, net	107	145	490	533	142
Total Revenues	56,612	25,390	118,625	102,486	58,351
Cost of sales (exclusive of depreciation)	54,604	22,918	107,369	93,780	52,708
Gross Profit	2,008	2,472	11,256	8,706	5,643
Operating Expenses:
Selling, general and administrative	18,873	3,916	17,552	18,305	11,661
Depreciation expense			341	504	338
Management fee expense - related party	2	62	215	250	250
Total Operating Expenses	61,221	4,112	18,108	19,059	12,249
Loss from Operations	(59,213)	(1,640)	(6,852)	(10,353)	(6,606)
Interest Expense	175	149	518	651	466
Other Income (Expense), net
Management fee income - related party					127
Change in fair value of warrants liability	12,358	13	(14)	24	(2)
Change in fair value of redeemable convertible preferred stock tranche obligation	0	284	923	(1,396)	(272)
Other income (expense)	162	3	(81)	(291)	662
Total Other Income , net	44,366	287	828	(1,663)	515
Loss Before Income Tax Expense	(15,022)	(1,502)	(6,542)	(12,667)	(6,557)
Income Tax Expense	0	5	10	11	3
Net Loss	$ (15,022)	$ (1,507)	$ (6,552)	$ (12,678)	$ (6,560)
Net loss per share attributable to common stockholders, basic and diluted	$ (0.15)	$ (0.03)	$ (0.11)	$ (0.22)	$ (0.13)
Weighted-average Shares used in Computing Net Loss per Share, basic and diluted	100,817,385	58,621,041
Retail vehicle sales
Revenues:
Total Revenues	$ 50,383	$ 21,042	$ 104,253	$ 90,382	$ 53,448
Cost of sales (exclusive of depreciation)	48,917	19,555	96,983	84,534	48,523
Gross Profit	1,466	1,487	7,270	5,848	4,925
Wholesale vehicle sales
Revenues:
Total Revenues	4,568	3,311	9,984	8,454	3,153
Cost of sales (exclusive of depreciation)	5,687	3,363	10,386	9,246	4,185
Gross Profit	$ (1,119)	$ (52)	$ (402)	$ (792)	$ (1,032)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Consolidated Statements of Comprehensive Income (Loss)
Net loss	$ (15,022)	$ (1,507)	$ (6,552)	$ (12,678)	$ (6,560)
Other comprehensive income, net of tax:
Unrealized gains on marketable securities arising during the period	(131)	7	16	0
Tax effect			0	0
Unrealized gains (losses) on marketable securities arising during the period, net of tax	(131)	7	16	0
Reclassification adjustment for realized losses		(3)	(1)	0
Tax effect			0	0
Reclassification adjustment for realized losses, net of tax		(3)	(1)	0
Other Comprehensive Income (Loss), net of tax	(131)	4	15	0
Total Comprehensive Income (Loss)	$ (15,153)	$ (1,503)	$ (6,537)	$ (12,678)	$ (6,560)

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Retroactive application of recapitalizationRedeemable Convertible Preferred Stock	Retroactive application of recapitalizationCommon Stock	Retroactive application of recapitalizationAdditional Paid-in Capital	Retroactive application of recapitalization	Adjusted balanceCommon Stock	Adjusted balanceAdditional Paid-in Capital	Adjusted balanceAccumulated Deficit	Adjusted balance	Previously ReportedRedeemable Convertible Preferred Stock	Previously ReportedCommon Stock	Previously ReportedAdditional Paid-in Capital	Previously ReportedAccumulated Deficit	Previously Reported	Restatement AdjustmentRedeemable Convertible Preferred Stock	Restatement AdjustmentCommon Stock	Restatement AdjustmentAdditional Paid-in Capital	Restatement Adjustment	Redeemable Convertible Preferred Stock	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income	Total
Balance at beginning at Dec. 31, 2017									$ 8,670	$ 4	$ 7,389	$ (8,247)	$ (854)	$ (8,670)	$ 1	$ 8,669	$ 8,670		$ 5	$ 16,058	$ (8,247)		$ 7,816
Balance at beginning (in shares) at Dec. 31, 2017									1,220,851	37,881,435				(1,220,851)	12,443,768				50,325,203
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss																					(6,560)		(6,560)
Accrued dividends on redeemable convertible preferred stock																				(1,014)			(1,014)
Stock-based compensation expense																				151			151
Balance at ending at Dec. 31, 2018									$ 8,670	$ 4	6,526	(14,807)	$ (8,277)	$ (8,670)	$ 1	8,669	$ 8,670		$ 5	15,195	(14,807)		$ 393
Balance at ending (in shares) at Dec. 31, 2018									1,220,851				37,881,435	(1,220,851)			12,443,768		50,325,203				50,325,203
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss																					(12,678)		$ (12,678)
Other comprehensive income, net of tax																							0
Redeemable convertible preferred stock issuance																		$ 8,890
Redeemable convertible preferred stock issuance (in shares)																		813,900
Retroactive application of recapitalization																		$ (8,890)	$ 1	8,889			$ 8,890
Retroactive application of recapitalization (in shares)																		(813,900)					8,295,839
Accrued dividends on redeemable convertible preferred stock																				(1,579)			$ (1,579)
Stock-based compensation expense																				113			113
Balance at ending at Dec. 31, 2019	$ (17,560)	$ 2	$ 17,558	$ 17,560	$ 6	$ 22,618	$ (27,485)	$ (4,861)	$ 17,560	$ 4	5,060	(27,485)	$ (22,421)	$ (17,560)	$ 2	17,558	$ 17,560		$ 6	22,618	(27,485)		$ (4,861)
Balance at ending (in shares) at Dec. 31, 2019	(2,034,751)	20,739,607			58,621,042				2,034,751	37,881,435				(2,034,751)	20,739,607				58,621,042				58,621,042
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss																					(1,507)		$ (1,507)
Other comprehensive income, net of tax																							4
Redeemable convertible preferred stock issuance																						$ 4	4
Accrued dividends on redeemable convertible preferred stock																				(456)			(456)
Stock-based compensation expense																				34			34
Balance at ending at Mar. 31, 2020																		$ 0	$ 6	22,196	(28,992)	4	(6,786)
Balance at ending (in shares) at Mar. 31, 2020																		0	58,621,042
Balance at beginning at Dec. 31, 2019	$ (17,560)	$ 2	17,558	17,560	$ 6	22,618	(27,485)	(4,861)	$ 17,560	$ 4	5,060	(27,485)	(22,421)	$ (17,560)	$ 2	$ 17,558	$ 17,560		$ 6	22,618	(27,485)		$ (4,861)
Balance at beginning (in shares) at Dec. 31, 2019	(2,034,751)	20,739,607			58,621,042				2,034,751	37,881,435				(2,034,751)	20,739,607				58,621,042				58,621,042
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss																					(6,552)		$ (6,552)
Other comprehensive income, net of tax																						15	15
Accrued dividends on redeemable convertible preferred stock																				(1,884)			(1,884)
Stock-based compensation expense																				45			45
Balance at ending at Dec. 31, 2020	$ (17,560)	$ 2	$ 17,558	$ 17,560	$ 6	$ 20,779	$ (34,037)	$ (13,237)	$ 17,560	$ 4	$ 3,221	$ (34,037)	$ (30,797)						$ 6	20,779	(34,037)	$ 15	(13,237)
Balance at ending (in shares) at Dec. 31, 2020	(2,034,751)	20,739,607			58,621,042				2,034,751	37,881,435									58,621,042
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss																					(15,022)		(15,022)
Other comprehensive income, net of tax																							(131)
Accrued dividends on redeemable convertible preferred stock																				(19)			(19)
Stock-based compensation expense																				41,963			41,963
Balance at ending at Mar. 31, 2021																		$ 0	$ 11	$ 278,272	$ (49,059)		$ 229,108
Balance at ending (in shares) at Mar. 31, 2021																		0	113,670,060

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities
Net loss	$ (15,022)	$ (1,507)	$ (6,552)	$ (12,678)	$ (6,560)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation - property and equipment	105	51	195	260	253
Depreciation - lease vehicles	15	49	146	244	85
Loss on disposition of property and equipment				321
Gain on sale of lease vehicles					(16)
Provision for doubtful accounts	0	6	40	(14)	(30)
Share-based compensation expense	41,963	34	45	113	151
Gain on marketable securities	0	13	(36)
Change in fair value of warrants liability	(12,358)	(13)	14	(24)	2
Amortization of debt issuance costs			14
Amortization of warrant liability			11
Change in fair value of redeemable convertible preferred stock tranche obligation	0	(284)	(923)	1,396	272
Other					(599)
Change in Operating Assets and Liabilities:
Accounts receivable	(5,192)	1,177	(916)	(830)	(706)
Inventories	1,991	1,790	(3,333)	2,883	(4,810)
Other current assets	(5,868)	8	(6,445)	(6)	48
Other assets	(3,038)	9	44	(38)	(164)
Accounts payable	3,140	(325)	4,149	1,392	223
Accrued expenses and transaction expenses	6,187	(54)	8,039	525	133
Accrued expenses - related party	(229)	(50)	96	172	(9)
Other current liabilities	559	67	(178)	229	20
Other liabilities	(245)	150	998	582	(54)
Net Cash (Used in)/Provided by Operating Activities	(19,600)	1,126	(4,592)	(5,473)	(11,761)
Cash Flows from Investing Activities
Cash related to consolidation of Orange Grove					5
Purchase of property and equipment	(586)	(10)	(154)	(235)	(474)
Proceeds from sale of lease vehicles					119
Purchase of lease vehicles	0	(246)	(92)	(252)	(12)
Purchase of marketable securities	(217,689)	(421)	(1,049)
Proceeds from sales of marketable securities	59	18	68
Net Cash Used in Investing Activities	(219,486)	(659)	(1,227)	(487)	(362)
Cash Flows from Financing Activities
Issuance of redeemable convertible preferred stock, net				7,988
Payments made on long-term debt	0	(2)	(9)	(8)	(4)
Borrowings on long-term debt	125,000	0	5,249	3,000
Payments of debt issuance costs			(10)	(112)
Payments on floor plan notes payable	(1,749)	0	(24,948)	(41,711)	(24,567)
Borrowings on floor plan notes payable	9,236	7,139	24,248	39,753	29,171
Payments made on promissory note				(418)	(97)
Net Cash Provided by/(Used in) Financing Activities	310,746	(1,710)	4,530	8,492	4,503
Net Change in Cash and Cash Equivalents Including Restricted Cash	71,776	(1,243)	(1,289)	2,532	(7,620)
Cash and cash equivalents and restricted cash, beginning	2,813	4,102	4,102	1,570	9,190
Cash and cash equivalents and restricted cash, ending	74,589	2,859	2,813	4,102	1,570
Supplemental Disclosure of Cash Flow Information
Cash paid for interest	402	165	346	684	436
Supplementary Schedule of Non-cash Investing and Financing Activities:
Purchases of property under capital lease obligations			1,305
Transfer from property and equipment to inventory			27	53	26
Transfer from lease vehicles to inventory	100	199	217	295
Redeemable convertible preferred stock distributions accrued	0	$ 457	1,884	1,579	1,014
Purchase of property and equipment with long-term debt					21
Promissory note based on consolidation of Orange Grove					$ 515
Issuance of common stock warrants			$ 15	72
Settlement of redeemable convertible preferred stock tranche obligation	$ 2,832			$ (902)

Description of Business

Description of Business	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Description of Business
Description of Business	Note 1 Description of Business Defined Terms Unless otherwise indicated or unless the context otherwise requires, the following terms used herein shall have the following meanings: · references to “CarLotz,” “we,” “us,” “our” and the “Company” are to CarLotz, Inc. and its consolidated subsidiaries; · references to “Acamar Partners” refer to the Company for periods prior to the consummation of the Merger referred to below; · references to “Acamar Sponsor” are to Acamar Partners Sponsor I LLC; and · references to the “Merger” are to the previously announced merger pursuant to that certain Agreement and Plan of Merger, dated as of October 21, 2020 (as amended by Amendment No. 1, dated December 16, 2020, the “Merger Agreement”), by and among CarLotz, Inc. (f/k/a Acamar Partners Acquisition Corp.) (the “Company”), Acamar Partners Sub, Inc., a wholly owned subsidiary of CarLotz, Inc. (“Merger Sub”), and CarLotz Group, Inc. (f/k/a CarLotz, Inc.) (“Former CarLotz”), pursuant to which Merger Sub merged with and into Former CarLotz, with Former CarLotz surviving as the surviving company and as a wholly owned subsidiary of the Company. The Company is a used vehicle consignment and retail remarketing company based in Richmond, Virginia. The Company offers an innovative and one-of-a-kind consumer and commercial used vehicle consignment and sales business model, with an online marketplace and eleven retail hub locations throughout the United States, including in Florida, Illinois, North Carolina, Texas, Virginia, Tennessee and Washington State. Subsidiaries are consolidated when the parent is deemed to have control over the subsidiaries’ operations. Subsidiary Operations CarLotz, Inc. owns 100% of CarLotz Group, Inc. (a Delaware corporation), which owns 100% of Orange Grove Fleet Solutions, LLC (a Virginia LLC), 100% of Orange Peel Protection Reinsurance Co. Ltd. (a Turks and Caicos Islands, British West Indies company) and 100% of Orange Peel LLC (a Virginia LLC), which owns 100% of Orange Peel Reinsurance, Ltd. (a Turks and Caicos Islands, British West Indies company). Basis of Presentation On January 21, 2021, (the “Closing Date”), the Company consummated the previously announced merger pursuant to that certain Agreement and Plan of Merger, dated as of October 21, 2020, by and among the Company, Merger Sub and Former CarLotz, as amended by Amendment No,. 1 to the Agreement and Plan of Merger, dated December 16, 2020, by and among the Company, Merger Sub and Former CarLotz. (See Note 3 “Merger” for further discussion). Pursuant to the terms of the Merger Agreement, a business combination between the Company and Former CarLotz was effected through the merger of Merger Sub with and into Former CarLotz surviving as the surviving company. Notwithstanding the legal form of the Merger pursuant to the Merger Agreement, the Merger is accounted for as a reverse recapitalization in accordance with U.S. GAAP. Under this method of accounting, CarLotz is treated as the acquired company and Former CarLotz is treated as the acquiror for financial statement reporting and accounting purposes. As a result of Former CarLotz being the accounting acquirer, the financial reports filed with the SEC by the Company subsequent to the Merger are prepared “as if” Former CarLotz is the predecessor and legal successor to the Company. The historical operations of Former CarLotz are deemed to be those of the Company. Thus, the financial statements included in this report reflect (i) the historical operating results of Former CarLotz prior to the Merger, (ii) the combined results of the Company and Former CarLotz following the Merger on January 21, 2021, (iii) the assets and liabilities of Former CarLotz at their historical cost and (iv) the Company’s equity structure for all periods presented. The recapitalization of the number of shares of common stock attributable to the purchase of Former CarLotz in connection with the Merger is reflected retroactively to the earliest period presented and will be utilized for calculating earnings per share in all prior periods presented. No step-up basis of intangible assets or goodwill was recorded in the Merger transaction consistent with the treatment of the transaction as a reverse recapitalization of Former CarLotz. In connection with the Merger, Acamar Partners Acquisition Corp. changed its name to CarLotz, Inc. The Company’s common stock is now listed on The Nasdaq Global Market under the symbol “LOTZ” and warrants to purchase the common stock at an exercise price of $11.50 per share are listed on The Nasdaq Global Market under the symbol “LOTZW”. Prior to the Merger, the Company neither engaged in any operations nor generated any revenue. Until the Merger, based on the Company’s business activities, it was a “shell company” as defined under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The accompanying interim condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in annual financial statements have been condensed or omitted pursuant to such rules and regulations. Therefore, these interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes of Former CarLotz as of December 31, 2020 and 2019 and for the years ended December 31, 2020, 2019 and 2018 (audited consolidated financial statements) contained herein. The condensed consolidated balance sheet as of December 31, 2020, included herein, was derived from the audited consolidated financial statements of Former CarLotz as of that date contained herein. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements, and in management’s opinion, include all adjustments, which consist of only normal recurring adjustments necessary for the fair statement of the Company’s condensed consolidated balance sheet as of March 31, 2021 and its results of operations for the three months ended March 31, 2021 and 2020. The results for the three months ended March 31, 2021 are not necessarily indicative of the results expected for the current fiscal year or any other future periods.	Note 1 — Description of Business CarLotz, Inc. (now known as CarLotz Group, Inc.) and its wholly-owned subsidiaries (collectively, the “Company”) is a used vehicle consignment and automotive retailer company based in Richmond, Virginia. The Company offers an innovative and one-of-a-kind consumer and commercial used vehicle consignment and sales business model, with an online marketplace and ten retail hub locations throughout the United States, including in Florida, Illinois, North Carolina, Texas, Virginia and Washington. The Company was formed as a Delaware corporation and commenced operations in 2011. Subsidiaries are consolidated when the parent is deemed to have control over the subsidiaries’ operations. Investments in which the Company has the ability to exercise significant influence, but does not have a controlling interest, are accounted for using the equity method. Unless the context otherwise requires, references to "we," "us," "our," and the "Company" refer to the Company and its consolidated subsidiaries prior to the consummation of the Merger. See Note 24 — Subsequent Events for additional detail on the Acamar Partners Acquisition Corp. Merger. Subsidiary Operations The Company owns 100% of Orange Grove Fleet Solutions, LLC (a Virginia LLC), 100% of Orange Peel Protection Reinsurance Co. Ltd. (a Turks and Caicos Islands, British West Indies company) and 100% of Orange Peel LLC (a Delaware LLC), which owns 100% of Orange Peel Reinsurance, Ltd. (a Turks and Caicos Islands, British West Indies company). Orange Grove Fleet Solutions, LLC (“Orange Grove”) Orange Grove is primarily engaged in the leasing of fleet vehicles to commercial customers and was originally established as a joint venture with a third party to expand Orange Grove’s products to the Company’s customer base. On September 13, 2018, Orange Grove redeemed the 80% membership interest of its majority member (the “redemption”). Prior to the redemption, the Company had a 20% membership interest in Orange Grove and accounted for its investment using the equity method. As a result of the redemption, the Company became the sole member of Orange Grove. Accordingly, the Company accounted for the redemption as a business combination (step-acquisition with no consideration transferred) using the acquisition method of accounting under Accounting Standards Codification (“ASC”) 805 Business Combinations . The net assets acquired and liabilities assumed as of September 13, 2018 were not material. In accordance with ASC 805, the Company remeasured its 20% membership interest in Orange Grove at its acquisition date fair value and used the acquisition date fair value of its remeasured interest in determining the fair value of the consideration transferred when applying the acquisition method of accounting. The result of the remeasurement and application of acquisition method of accounting was an immaterial gain on the transaction that is recorded in Other income (expense) in the consolidated statements of operations. Subsequent to the redemption of the majority member interest, the Company consolidated Orange Grove. The results of operations of Orange Grove since September 13, 2018 are included in the Company’s consolidated statements of operations. The revenues and results of operations attributable to Orange Grove for the period from the date of acquisition, September 13, 2018, through December 31, 2018 were immaterial. The impact on the Company’s revenues and net loss for purposes of pro forma statements of operations for the year ended December 31, 2018 were immaterial.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 2 — Summary of Significant Accounting Policies For a detailed discussion about the Company’s significant accounting policies and for further information on accounting updates adopted in the prior year, see Note 2 to the audited consolidated financial statements. During the three months ended March 31, 2021, there were no significant revisions to the Company’s significant accounting policies, other than those indicated herein. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Following the closing of the Merger, Former CarLotz equity holders at the effective time of the Merger will have the contingent right to receive, in the aggregate, up to 7,500,000 shares of common stock if, from the closing of the Merger until the fifth anniversary thereof, the reported closing trading price of the common stock exceeds certain thresholds. Estimating the change in fair value of the earnout liability for the earnout shares that could be earned Former CarLotz equity holders at the effective time of the Merger requires determining both the fair value valuation model to use and inputs to the valuation model. The fair value of the earnout shares was estimated by utilizing a Monte-Carlo simulation model, which is a commonly used valuation model for this type of transaction. Inputs that have a significant effect on the earnout shares valuation include the expected volatility, starting stock price, expected term, risk-free interest rate and the earnout hurdles. See Note 6 — Fair Value of Financial Instruments. Warrants that were issued by Acamar Partners (Merger warrants) and continue to exist following the closing of the Merger are accounted for as freestanding financial instruments. These warrants are classified as liabilities on the Company’s condensed consolidated balance sheets and are recorded at their estimated fair value. The estimated fair value of the warrants is determined by using the market value in an active trading market. Beginning in the first quarter of 2020, the World Health Organization declared the outbreak and spread of the COVID-19 virus a pandemic. The outbreak is disrupting supply chains and impacting production and sales across a wide range of industries. The full economic impact of this pandemic has not been determined, including the impact on the Company’s suppliers, customers and credit markets. Due to the evolving and uncertain nature of COVID-19, it is reasonably possible that it could materially impact the Company’s estimates, particularly those noted above that require consideration of forecasted financial information, in the near to medium term. The ultimate impact will depend on numerous evolving factors that the Company may not be able to accurately predict, including the duration and extent of the pandemic, the impact of federal, state, local and foreign governmental actions, consumer behavior in response to the pandemic and other economic and operational conditions the Company may face. Restricted Cash As of March 31, 2021 and December 31, 2020, restricted cash included approximately $227 and $605, respectively. The restricted cash is legally and contractually restricted as collateral for two letters of credit issued on behalf of CarLotz Group, Inc. and of the reinsurance companies for the payment of claims. Marketable Securities The Company and its reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of fixed income debt securities. The Company has investments in marketable securities that are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in other income (expense) in the Company’s condensed consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of debt securities are recognized in Accumulated Other Comprehensive Income in the Company’s condensed consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company’s net income only when such securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security’s cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company’s marketable securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issue and the Company’s intent to sell, or whether it is more likely than not the Company will be required to sell the investment before recovery of the investment’s amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these securities, the Company will write down these investments to fair value through earnings. Capitalized website and internal-use software costs The Company capitalizes costs associated with customized internal-use software systems that have reached the application development stage. Such capitalized costs include external direct costs utilized in developing or obtaining the applications and payroll and payroll-related expenses for employees who are directly associated with the applications. Capitalization of such costs begins when the preliminary project stage is complete and ceases at the point in which the project is substantially complete and ready for its intended purpose. Amortization is computed using the straight-line method over 3 years. Advertising Costs The Company expenses advertising costs as they are incurred. Advertising costs are included in selling, general and administrative expenses on the accompanying condensed consolidated statements of operations. Advertising expenses were approximately $2,526 and $541 for the three months ended March 31, 2021 and 2020, respectively. Concentration of Credit Risk Concentrations of credit risk with respect to accounts receivables are limited due to the large diversity and number of customers comprising the Company’s customer base. Recently Issued Accounting Pronouncements In January 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . Subsequently, the FASB issued ASU 2018-03, Technical Corrections and Improvements to Financial Instruments-Overall. ASU 2016-01 requires equity investments except those under the equity method of accounting to be measured at fair value with the changes in fair value recognized in net income. ASU 2016-01 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2018, and interim periods within annual periods beginning after December 15, 2019. The Company adopted ASU 2016-01 on January 1, 2019 for annual periods and on January 1, 2020 for interim periods within annual periods. The adoption of ASU 2016-01 did not have a material impact on the Company’s condensed consolidated financial statements because the Company did not make its first investment in securities impacted by the standard until the first quarter of the year ending December 31, 2021. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The standard will affect all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases, to clarify how to apply certain aspects of the new leases standard. ASU 2016-02, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, and early adoption is permitted. For leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, lessees and lessors must apply a modified retrospective transition approach. While the Company expects the adoption of this standard to result in an increase to the reported assets and liabilities, it has not yet determined the full impact the adoption of this standard will have on its financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. ASU 2016-13, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates for fiscal years beginning after December 15, 2022 and for interim periods within those fiscal years. The Company is currently evaluating the impact of this standard to its financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement ( Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. The Company adopted ASU 2018-13 on January 1, 2020 and the adoption of this standard did not have a material impact on the condensed consolidated financial statements or related disclosures. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other- Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company adopted ASU 2018-15 on January 1, 2020 for annual periods, and the adoption of this standard did not have a material impact on the condensed consolidated financial statements or related disclosures. In October 2018, the FASB issued ASU 2018-17, Consolidation (Topic 810), Targeted Improvements to Related Party Guidance for Variable Interest Entities , which addresses the cost and complexity of financial reporting associated with consolidation of variable interest entities (“VIE”). The new guidance must be applied on a retrospective basis as a cumulative-effect adjustment as of the date of adoption. The Company adopted ASU 2018-17 on January 1, 2020, and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures because the Company does not currently have any indirect interests through related parties under common control for which it receives decision making fees. In December 2020, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which is intended to simplify various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019-12 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the impact of this standard on its financial statements.	Note 2 — Summary of Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Principles of Consolidation The consolidated financial statements include the accounts of CarLotz, Inc. (now known as CarLotz Group, Inc.) and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Estimating the change in fair value of the liability for stock warrants requires determining both the fair value valuation model to use and inputs to the valuation model. The stock warrants liability is valued using the Black Scholes pricing model, which is a commonly used valuation model for this type of financial instrument. Inputs that have a significant effect on the stock warrants liability valuation include the expected life of the stock warrants, the fair value per share of the Company’s common stock, volatility of the Company’s common stock fair value and related dividend yield. See Note 6 — Fair Value of Financial Instruments and Note 12 — Long-term Debt for additional detail. The fair value of the obligation to purchase future tranches of Series A Redeemable Convertible Preferred Stock (“Series A Preferred Stock”) was estimated by utilizing the Black Scholes pricing model and included the impact of the lack of marketability of the instruments. The key inputs for the fair value measurement include the fair value per share of the Company’s Series A Preferred Stock, expected volatility, the remaining years to liquidity and the risk-free interest rate. The most significant input impacting the fair value of the Series A Preferred Stock tranche obligation is the fair value of the Series A Preferred Stock as of each remeasurement date. The determination of the fair value per share of the redeemable convertible preferred stock is estimated by taking into consideration the most recent sales of redeemable convertible preferred stock, results obtained from third-party valuations and additional factors that are deemed relevant. As a private company, there was a lack of Company-specific historical and implied volatility information of the Company’s Series A Preferred Stock. Therefore, estimates of expected stock volatility are based on the historical volatility of publicly traded peer companies for a term equal to the remaining contractual term of the obligations. The risk-free interest rate was determined by reference to the U.S. Treasury yield curve for time periods approximately equal to the remaining years to liquidity. See Note 6 — Fair Value of Financial Instruments and Note 19 — Redeemable Convertible Preferred Stock for additional detail. Beginning in the first quarter of 2020, the World Health Organization declared the outbreak and spread of the COVID-19 virus a pandemic. The outbreak is disrupting supply chains and impacting production and sales across a wide range of industries. The full economic impact of this pandemic has not been determined, including the impact on the Company's suppliers, customers, and credit markets. Due to the evolving and uncertain nature of COVID-19, it is reasonably possible that it could materially impact the Company's estimates, particularly those noted above that require consideration of forecasted financial information, in the near to medium term. The ultimate impact will depend on numerous evolving factors that the Company may not be able to accurately predict, including the duration and extent of the pandemic, the impact of federal, state, local, and foreign governmental actions, consumer behavior in response to the pandemic and other economic and operational conditions the Company may face. Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments that are due on demand or have a remaining maturity of three months or less at the date of purchase. The Company places its cash with financial institutions and has balances that generally exceed federally insured amounts. Restricted Cash As of December 31, 2020 and 2019, restricted cash was approximately $605 and $888, respectively. The restricted cash is legally and contractually restricted as collateral for two letters of credit issued on behalf of the Company and of the reinsurance subsidiaries for the payment of claims. Marketable Securities The Company's reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of equity and fixed income debt securities. The Company's investments in marketable securities are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in other income (expense) in the Company's consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of available-for-sale debt securities are recognized in Accumulated Other Comprehensive Income in the Company's consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company's net income only when such debt securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security's cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company's marketable debt securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its fixed maturity debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issuer and the Company's intent to sell, or whether it is more likely than not the Company will be required to sell the debt security before recovery of the investment's amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these debt securities, the Company will write down these debt securities to fair value through earnings. Accounts Receivable, Net Accounts receivable consist primarily of contracts in transit that represent amounts due from financial institutions on retail installment contracts from retail vehicle sales, and also includes receivables related to wholesale vehicle sales. Concentration of Credit Risk Concentrations of credit risk with respect to accounts receivables are limited due to the large diversity and number of customers comprising the Company’s customer base. Inventories All inventories, which are comprised of vehicles and parts held for sale, are reported at the lower of cost or net realizable value. Cost of vehicle inventory is determined on a specific identification basis. Vehicles held on consignment are not recorded in the Company’s inventory balance, as title to those vehicles, and, therefore control of the vehicle, remain with the consignors until a customer purchases the vehicle and the vehicle is delivered. Property and Equipment Property and equipment are stated at cost. Expenditures for maintenance, repairs and minor renewals are charged to expense as incurred. Major renewals and betterments are capitalized. Property held under capital leases are stated at the present value of minimum lease payments less accumulated amortization. Property held under capital leases are amortized using the straight-line method over the shorter of the lease term or estimated useful life of the asset. Depreciation on owned property and equipment is calculated using the straight-line method over the estimated useful lives of the assets as follows: Leasehold Improvements Lesser of 15 years or underlying lease terms Equipment, Furniture and Fixtures 1 — 5 years Corporate Vehicles 5 years Lease Vehicles, net The Company leases vehicles to customers with lease terms that are typically 1 – 4 years. The leases are accounted for as operating leases. Lease income is recorded on a straight line basis over the period the vehicle is rented. Depreciation on the lease vehicles is calculated using the straight-line method over the estimated useful life. Reinsurance — Deferred Acquisition Costs The Company defers certain costs of acquiring new contracts. These costs are limited to incremental direct costs that result from the successful acquisition of new contracts and would not have been incurred, had the acquisition of the contract not occurred. Deferred acquisition costs (“DAC”) consist primarily of amounts paid for ceding fees and premium taxes and are amortized over the term of the contracts in relation to premiums earned. Acquisition costs that do not result in the successful acquisition of new contracts, or that would have been incurred even if a new contract was not acquired, are expensed as incurred. DAC are included in other assets on the consolidated balance sheets. Floor Plan Notes Payable The Company classifies notes payable for inventory purchased as “Floor plan notes payable” on the accompanying consolidated balance sheets. The Company presents borrowings and repayments on Floor plan notes payable within Cash flows from financing activities on the consolidated statements of cash flows because the Company uses a third-party lender for its floor plan financing arrangement. Classification and Accretion of Redeemable Convertible Preferred Stock The Company has previously classified its Series A Preferred Stock outside of stockholders’ equity (deficit) because the shares contained certain redemption features that were not solely within the control of the Company. Costs incurred in connection with the issuance of Series A Preferred Stock, as well as the recognition of the redeemable convertible preferred stock tranche obligation, are recorded as a reduction of gross proceeds from issuance. The Series A Preferred Stock was not redeemable as of the periods of these financial statements because while the holders of the Series A Preferred Stock had the power to direct the Company’s actions through its control of the Company’s board of directors, the deemed liquidation provision is considered a substantive condition that was contingent on the identification of a market participant willing to purchase the Company’s assets for consideration in an amount sufficient to distribute the redemption amount to the holders of the Series A Preferred Stock. Since the Series A Preferred Stock was not currently redeemable and it was not currently probable that it would become redeemable because a change of control feature is not considered probable until the change of control actually occurs, the net carrying value of Series A Preferred Stock was not accreted to its redemption value. See Note 19 — Redeemable Convertible Preferred Stock for additional details. See Note 3 — Reverse Recapitalization for the impact of the reverse recapitalization on the redeemable convertible preferred stock. Reinsurance — Contract Reserves The Company sells certain finance and insurance contracts that are underwritten by third parties. The Company, through its reinsurance subsidiaries, reinsures those contracts, thereby assuming the risk of loss on the underlying insurance contracts. The Company establishes insurance reserves in accordance with ASC 944, Financial Services — Insurance . These amounts are recorded as Other liabilities on the consolidated balance sheets. Contract Reserves Subsequent to the sale of a vehicle to a customer, the Company sells the related retail installment contracts to financial institutions on a non-recourse basis. The Company receives commissions from the financial institutions for these sales. The Company also receives commissions from other third-party providers for the arrangement of the sale of other products such as guaranteed vehicle protection insurance. The Company is subject to future chargebacks in the event of an early contract termination or payoff by customers. A reserve for future amounts estimated to be charged back is recorded as a reduction of Finance and insurance, net in the consolidated statements of operations, at the time of sale. The chargeback reserve is estimated based on the Company’s historical chargeback results and is recorded in Other liabilities on the consolidated balance sheets. Legal Contingencies The Company is involved in various claims and legal proceedings that arise in the normal course of business. The Company records an accrual for legal contingencies when it determines that it is probable that it has incurred a liability and it can reasonably estimate the amount of the loss. See Note 18 — Commitments and Contingencies for additional details. Fair Value Measurements Fair value as defined under U.S. GAAP is an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. U.S. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1: Observable inputs such as quoted prices in active markets. Level 2: Inputs other than quoted prices in active markets that are either directly or indirectly observable. Level 3: Unobservable inputs about which little or no market data exists, therefore requiring an entity to develop its own assumptions. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and affects how the measurement is classified within the fair value hierarchy levels. See Note 6 — Fair Value of Financial Instruments for additional information. Revenues The Company recognizes revenue upon transfer of control of goods or services to customers, in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. Control passes to the retail and wholesale vehicle sales customer when the title is delivered to the customer, who then assumes control of the vehicle. Cost of Sales Cost of sales includes the cost to acquire used vehicles and the related reconditioning costs to prepare the vehicles for resale. Vehicle reconditioning costs include parts, labor, inbound transportation costs, and other costs such as mechanical inspection, vehicle preparation supplies and repair costs. Cost of sales also includes any necessary adjustments to reflect vehicle inventory at the lower of cost or net realizable value. Sales Tax The Company collects and remits sales tax on vehicle sales and sales of parts. Sales tax collected is not included in revenues and remittances are not included in cost of sales. Sales tax collected is recorded as a liability, with the liability relieved upon remittance of payments to tax authorities. Selling, General, and Administrative Expenses Selling, general and administrative expenses primarily include compensation and benefits, advertising, facilities cost, technology expenses, logistics, and other administrative expenses. Advertising costs are expensed as incurred and were $3,199, $3,803, and $1,871 for the years ended December 31, 2020, 2019, and 2018, respectively. Equity-Based Compensation The Company classifies equity-based awards granted in exchange for services as either equity awards or liability awards. The classification of an award as either an equity award or a liability award is generally based upon cash settlement options. Both equity and liability awards are measured based on the fair value of the award at the grant date, however, liability awards are then re-measured to fair value each reporting period. The Company recognizes equity-based compensation on a straight-line basis over the award’s requisite service period, which is generally the vesting period of the award, less actual forfeitures. For equity and liability awards earned based on performance or upon occurrence of a contingent event, when and if the awards will be earned is estimated. If an award is not considered probable of being earned, no amount of equity-based compensation is recognized. If the award is deemed probable of being earned, related equity-based compensation is recorded over the estimated service period. To the extent the estimate of awards considered probable of being earned changes, the amount of equity-based compensation recognized will also change. See Note 20 — Stock-Based Compensation Plan for additional information on equity-based compensation. Redeemable Convertible Preferred Stock Tranche Obligation The Company classified the Series A Preferred Stock tranche obligations for the future purchase, and option to purchase, three additional tranches of Series A Preferred Stock (See Note 6 — Fair Value of Financial Instruments and Note 19 — Redeemable Convertible Preferred Stock for additional detail) as a liability on its consolidated balance sheets as the Series A Preferred Stock tranche obligations were freestanding financial instruments that required the Company to transfer equity instruments upon future closings of the Series A Preferred Stock. The Series A Preferred Stock tranche obligations were initially recorded at fair value upon the date of issuance and were subsequently remeasured to fair value at each reporting date. Changes in the fair value of the Series A Preferred Stock tranche obligation were recognized as a component of Other Income (Expense), net in the consolidated statements of operations. Changes in the fair value of the second Series A Preferred Stock tranche obligations were recognized until the tranche obligations were fulfilled in the first and second quarter of 2019. Income Tax Income taxes are provided for the tax effects of transactions reported in the consolidated financial statements and consist of taxes currently due plus deferred taxes. Deferred taxes are recognized for differences between the basis of assets and liabilities for financial statement and income tax purposes. The differences relate primarily to depreciable assets (use of different depreciation methods and lives for financial statement and income tax purposes), contract expenses, and certain accrued expenses. Deferred tax assets and liabilities represent future tax consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred income taxes are recorded using enacted tax rates based upon differences between financial statement and tax bases of assets and liabilities. A valuation allowance has been established for all deferred tax assets because the Company has incurred cumulative losses in recent years and the Company has not determined that the net deferred tax assets are more likely than not to be realized. In future periods, if the Company determines it is more likely than not that the deferred tax assets will be realized, the valuation allowance may be reduced, and an income tax benefit recorded. Net Loss Per Share Attributable to Common Stockholders Prior to the impact of the retroactive application of the recapitalization, the Company’s redeemable convertible preference shares were participating securities as the holders of the Company’s redeemable convertible preference shares are entitled to participate in dividends with ordinary shares. Net losses were not allocated to the Company’s redeemable convertible preference shares as the holders of the Company’s redeemable convertible preference shares do not have a contractual obligation to share in any losses. Subsequent to the retroactive application of the recapitalization, basic and diluted net loss per share attributable to ordinary shareholders is calculated by dividing net loss attributable to Company’s ordinary shareholders by the weighted-average number of recapitalized ordinary shares outstanding for the period. Diluted earnings per share attributable to common stockholders adjusts basic earnings per share for all potentially dilutive common stock equivalents outstanding during the period. Potentially dilutive securities consisted of stock options, warrants, and convertible notes payable. Since the Company has reported net losses for all periods presented, the Company has excluded all potentially dilutive securities from the calculation of the diluted net loss per share attributable to common stockholders as their effect is antidilutive and accordingly, basic and diluted net loss per share attributable to common stockholders is the same for all periods presented. (See Note 22 — Net Loss Per Share Attributable to Common Stockholders for additional detail) Segments The Company’s chief operating decision maker (“CODM”) is its chief executive officer. The Company derives its revenue primarily from sales of automobiles via retail and wholesale channels. The CODM reviews financial information presented on a consolidated basis for the purposes of allocating resources and evaluating financial performance. Accordingly, the Company determined that it has one reportable segment. Adoption of New Accounting Pronouncements In August 2018, the FASB issued ASU 2018‑13, Fair Value Measurement (Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement , which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. ASU 2018‑13 is effective for all entities for fiscal years beginning after December 15, 2019 and for interim periods within those fiscal years , and early adoption is permitted. An entity is permitted to early adopt either the entire standard or only the provisions that eliminate or modify requirements. The Company adopted ASU 2018-13 on January 1, 2020 and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures. In August 2018, the FASB issued ASU 2018‑15, Intangibles — Goodwill and Other — Internal — Use Software (Subtopic 350‑40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract . This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. ASU 2018‑15 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2019, and interim periods within annual periods beginning after December 15, 2020, with early adoption permitted. The Company adopted ASU 2018-15 on January 1, 2020 for annual periods and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures. In October 2018, the FASB issued ASU 2018‑17, Consolidation (Topic 810), Targeted Improvements to Related Party Guidance for Variable Interest Entities , which addresses the cost and complexity of financial reporting associated with consolidation of variable interest entities (“VIE”). ASU 2018‑17 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2019, and interim periods within annual periods beginning after December 15, 2020, with early adoption permitted. The new guidance must be applied on a retrospective basis as a cumulative-effect adjustment as of the date of adoption. The Company adopted ASU-2018-17 on January 1, 2020 and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures because the Company does not currently have any indirect interests through related parties under common control for which it receives decision making fees. Recently Issued Accounting Pronouncements Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The standard will affect all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases, to clarify how to apply certain aspects of the new leases standard. ASU 2016-02, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, and early adoption is permitted. For leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, lessees and lessors must apply a modified retrospective transition approach. While the Company expects the adoption of this standard to result in an increase to the reported assets and liabilities, it has not yet determined the full impact the adoption of this standard will have on its financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. ASU 2016-13, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates for fiscal years beginning after December 15, 2022 and for interim periods within those fiscal years. The Company is currently evaluating the impact of this standard to the consolidated financial statements. In December 2019, the FASB issued ASU 2019‑12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which is intended to simplify various aspects related to accounting for income taxes. ASU 2019‑12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019‑12 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the impact of this standard to the consolidated financial statements.

Reverse Recapitalization

Reverse Recapitalization	12 Months Ended
	Dec. 31, 2020
Reverse Recapitalization
Reverse Recapitalization	Note 3 — Reverse Recapitalization On October 21, 2020, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) among the Company, CarLotz, Inc. (formerly known as Acamar Partners Acquisition Corp. (“Acamar Partners”)) and Acamar Partners Sub, Inc., a direct wholly owned subsidiary of Acamar (“Merger Sub”), pursuant to which Merger Sub merged with and into the Company with the Company continuing as the surviving entity (the “Merger”). As a result of the Merger, each outstanding share of the Company’s common stock was converted into the right to receive newly issued shares of Acamar Partners Class A common stock, as calculated pursuant to the terms of the Merger Agreement. On January 21, 2020, the Company consummated the Merger. The Merger is accounted for as a reverse recapitalization in accordance with U.S. GAAP. Under this method of accounting, Acamar Partners was treated as the “acquired” company for financial reporting purposes. Accordingly, for accounting purposes, the Merger was treated as the equivalent of the Company issuing stock for the net assets of Acamar Partners, accompanied by a recapitalization. Pursuant to U.S. GAAP, the Company retroactively applied the recapitalization to the Company’s equity structure, including the consolidated statement of stockholders’ equity (deficit) from January 1, 2018 to December 31, 2020, the total stockholders’ equity (deficit) within the Company’s consolidated balance sheet as of December 31, 2020 and 2019 and the weighted average outstanding shares basic and diluted for the years ended December 31, 2020, 2019 and 2018. Retroactive Application of Recapitalization to Consolidated Statements of Stockholders’ Equity (Deficit) The following table summarizes the retroactive application of the recapitalization to the Company’s common and preferred stock outstanding as a result of the Merger. Date Description As Previously Reported 1/21/21 Conversion Ratio Recapitalized Common Shares 1/1/2018 Common Stock 1/1/2018 Treasury Stock 1/1/2018 Preferred Stock 1/22/2019 Preferred Stock 5/1/2019 Preferred Stock Unless otherwise indicated, all of the Company’s common stock as well as previously issued stock options, treasury stock and redeemable convertible preferred stock presented in the accompanying retroactively revised consolidated statements of stockholders’ equity (deficit) or in the related notes are presented on an as- or as if-converted basis, converted at the ratio of 10.1927 and presented as shares or awards of our common stock. Retroactive Application of Recapitalization to Consolidated Statements of Operations Based on the retroactive application of recapitalization to our consolidated statements of stockholders’ equity (deficit), we recalculated the weighted-average outstanding shares for the years ended December 31, 2020, 2019 and 2018. The basic and diluted weighted-average outstanding shares are retroactively converted to common stock to conform to the retroactively revised consolidated statements of stockholders’ equity (deficit). The following table summarizes the weighted-average outstanding shares, basic and diluted for the years ended December 31, 2020, 2019 and 2018 after factoring all retroactive application of recapitalization. Date Recapitalized Common Stock Days outstanding % of weighting Weighted Average Outstanding Shares 1/1/2018 % 12/31/2018 % 1/1/2019 % 1/22/2019 % 5/1/2019 % 12/31/2019 % 1/1/2020 % 12/31/2020 % Retroactive Application of Recapitalization to Consolidated Balance Sheets To conform to the retroactive application of recapitalization to our consolidated statements of stockholders’ equity (deficit), we reclassified $17,558 at December 31, 2020 and 2019 and $8,669 at December 31, 2018 of redeemable convertible preferred stock to Additional paid-in capital. Additionally, we reclassified $(1,500) of treasury stock to Additional paid-in capital effective January 1, 2018.

Revenue Recognition

Revenue Recognition	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Revenue Recognition
Revenue Recognition	Note 4 — Revenue Recognition Disaggregation of Revenue The significant majority of the Company’s revenue is derived from contracts with customers related to the sales of vehicles. In the following tables, revenue is disaggregated by major lines of goods and services and timing of transfer of goods and services. The Company has determined that these categories depict how the nature, amount, timing and uncertainty of its revenue and cash flows are affected by economic factors. The tables below include disaggregated revenue under ASC 606 ( Revenue from Contracts with Customers) : Three Months Ended March 31, 2021 Fleet Vehicle Sales Management Total Retail vehicle sales $ 50,383 $ — $ 50,383 Wholesale vehicle sales 4,568 — 4,568 Finance and insurance, net 1,554 — 1,554 Lease income, net — 107 107 Total Revenues $ 56,505 $ 107 $ 56,612 Three Months Ended March 31, 2020 Fleet Vehicle Sales Management Total Retail vehicle sales $ 21,042 $ — $ 21,042 Wholesale vehicle sales 3,311 — 3,311 Finance and insurance, net 892 — 892 Lease income, net — 145 145 Total Revenues $ 25,245 $ 145 $ 25,390 The following table summarizes revenues and cost of sales for retail and wholesale vehicle sales for the three months ended March 31, 2021 and 2020: 2021 2020 Retail vehicles: Retail vehicle sales $ 50,383 $ 21,042 Retail vehicle cost of sales 48,917 19,555 Gross Profit – Retail Vehicles $ 1,466 $ 1,487 Wholesale vehicles: Wholesale vehicle sales $ 4,568 $ 3,311 Wholesale vehicle cost of sales 5,687 3,363 Gross Profit – Wholesale Vehicles $ (1,119) $ (52) Retail Vehicle Sales The Company sells used vehicles to retail customers through its 11 retail hub locations. The transaction price for used vehicles is a fixed amount as set forth in the customer contract, and the revenue recognized by the Company is inclusive of the agreed upon transaction price and any service fees. Customers frequently trade-in their existing vehicle to apply toward the transaction price of a used vehicle. Trade-in vehicles represent noncash consideration, which the Company measures at estimated fair value of the vehicle received on the trade. The Company satisfies its performance obligation and recognizes revenue for used vehicle sales at a point in time when the title to the vehicle passes to the customer, at which point the customer controls the vehicle. The Company receives payment for used vehicle sales directly from the customer at the time of sale or from third-party financial institutions within a short period of time following the sale if the customer obtains financing. The Company’s exchange policy allows customers to initiate an exchange of a vehicle during the first three days or 500 miles after delivery, whichever comes first. An exchange reserve is immaterial based on the Company’s historical activity. Wholesale Vehicle Sales The Company sells wholesale vehicles primarily through auction as wholesale vehicles often do not meet the Company’s standards for retail vehicle sales. The Company satisfies its performance obligation and recognizes revenue for wholesale vehicle sales when the vehicle is sold at auction or directly to a wholesaler and title to the vehicle passes to the customer. Finance and Insurance, net The Company provides customers with options for financing, insurance and extended warranties. Extended warranties are serviced by a company owned by a major shareholder. All other services are provided by third-party vendors, and the Company has agreements with each of these vendors giving the Company the right to offer such services. When a customer selects a service from these third-party vendors, the Company earns a commission based on the actual price paid or financed. The Company concluded that it is an agent for these transactions because it does not control the products before they are transferred to the customer. Accordingly, the Company recognizes finance and insurance revenue at the point in time when the customer enters into the contract.	Note 4 — Revenue Recognition Disaggregation of Revenue The significant majority of the Company’s revenue is from contracts with customers related to the sales of vehicles. In the following tables, revenue is disaggregated by major lines of goods and services and timing of transfer of goods and services. The Company has determined that these categories depict how the nature, amount, timing, and uncertainty of its revenue and cash flows are affected by economic factors. The tables below include disaggregated revenue under ASC 606: 2020 Fleet Vehicle Sales Management Total Retail vehicle sales $ 104,253 $ — $ 104,253 Wholesale vehicle sales 9,984 — 9,984 Finance and insurance, net 3,898 — 3,898 Lease income, net — 490 490 Total Revenues $ 118,135 $ 490 $ 118,625 2019 Fleet Vehicle Sales Management Total Retail vehicle sales $ 90,382 $ — $ 90,382 Wholesale vehicle sales 8,454 — 8,454 Finance and insurance, net 3,117 — 3,117 Lease income, net — 533 533 Total Revenues $ 101,953 $ 533 $ 102,486 2018 Fleet Vehicle Sales Management Total Retail vehicle sales $ 53,448 $ — $ 53,448 Wholesale vehicle sales 3,153 — 3,153 Finance and insurance, net 1,608 — 1,608 Lease income, net — 142 142 Total Revenues $ 58,209 $ 142 $ 58,351 The following table summarizes revenues and cost of sales for retail and wholesale vehicle sales for the years ended December 31, 2020, 2019, and 2018: 2020 2019 2018 Retail vehicles: Retail vehicle sales $ 104,253 $ 90,382 $ 53,448 Retail vehicle cost of sales 96,983 84,534 48,523 Gross Profit – Retail Vehicles $ 7,270 $ 5,848 $ 4,925 Wholesale vehicles: Wholesale vehicle sales $ 9,984 $ 8,454 $ 3,153 Wholesale vehicle cost of sales 10,386 9,246 4,185 Gross Profit – Wholesale Vehicles $ (402) $ (792) $ (1,032) Retail Vehicle Sales The Company sells used vehicles to retail customers through its several retail hub locations. The transaction price for used vehicles is a fixed amount as set forth in the customer contract, and the revenue recognized by the Company is inclusive of the agreed upon transaction price and any service fees. Customers frequently trade-in their existing vehicle to apply toward the transaction price of a used vehicle. Trade-in vehicles represent noncash consideration that the Company measures at estimated fair value of the vehicle received on trade. The Company satisfies its performance obligation and recognizes revenue for used vehicle sales at a point in time when the title to the vehicle passes to the customer, at which point the customer controls the vehicle. The Company receives payment for used vehicle sales directly from the customer at the time of sale or from third-party financial institutions within a short period of time following the sale if the customer obtains financing. The Company’s return policy allows customers to initiate a return during the first three days or 500 miles after delivery, whichever comes first. A return reserve is estimated based on the Company’s historical activity and is recorded in Other liabilities in the consolidated balance sheets. Wholesale Vehicle Sales The Company sells wholesale vehicles primarily through auction as wholesale vehicles often do not meet the Company’s standards for retail vehicle sales. The Company satisfies its performance obligation and recognizes revenue for wholesale vehicle sales at a point in time when the vehicle is sold at auction or directly to a wholesaler and title to the vehicle passes to the customer. Finance and Insurance, net The Company provides customers with options for financing, insurance, and extended warranties. Extended warranties sold beginning January 1, 2019 are serviced by a company owned by a holder of Series A Preferred Stock. All other services are provided by third-party vendors and the Company has agreements with each of these vendors giving the Company the right to offer such services. When a customer selects a service from these third-party vendors, the Company earns a commission based on the actual price paid or financed. The Company concluded that it is an agent for these transactions because it does not control the service before they are transferred to the customer. Accordingly, the Company recognizes finance and insurance revenue at the point in time when the customer enters into the contract.

Marketable Securities

Marketable Securities	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Marketable Securities
Marketable Securities	Note 5 — Marketable Securities The following table summarizes amortized cost, gross unrealized gains and losses and fair values of the Company’s investments in fixed maturity debt securities as of March 31, 2021 and December 31, 2020: March 31, 2021 Amortized Gross Gross Cost/ Unrealized Unrealized Cost Basis Gains Losses Fair Value U.S. Treasuries $ 181 $ 2 $ — $ 183 Corporate bonds 63,197 2 (111) 63,088 Municipal bonds 24,003 5 (14) 23,994 Commercial paper 130,659 — — 130,659 Total Fixed Maturity Debt Securities $ 218,040 $ 9 $ (125) $ 217,924 December 31, 2020 Amortized Gross Gross Cost/ Unrealized Unrealized Cost Basis Gains Losses Fair Value U.S. Treasuries $ 240 $ 6 $ — $ 246 Corporate bonds 261 5 (1) 265 U.S. states, territories and political subdivisions 141 5 — 146 Total Fixed Maturity Debt Securities $ 642 $ 16 $ (1) $ 657 The amortized cost and fair value of the Company’s fixed maturity debt securities as of March 31, 2021 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Cost Fair Value Due in one year or less $ 173,174 $ 173,145 Due after one year through five years 44,540 44,457 Due after five years through ten years 326 322 Total $ 218,040 $ 217,924 The following tables summarize the Company’s gross unrealized losses in fixed maturity securities as of March 31, 2021 and December 31, 2020: March 31, 2021 Less Than 12 Months 12 Months or More Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Fair Value Losses Fair Value Losses Fair Value Losses Corporate bonds $ 23,226 $ (31) $ 39,736 $ (80) $ 62,962 $ (111) Municipal bonds 18,286 (11) 1,135 (3) 19,421 (14) Total Fixed Maturity Debt Securities $ 41,512 $ (42) $ 40,871 $ (83) $ 82,533 $ (125) December 31, 2020 Less Than 12 Months 12 Months or More Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Fair Value Losses Fair Value Losses Fair Value Losses Corporate bonds $ 39 $ (1) $ — $ — $ 39 $ (1) Total Fixed Maturity Debt Securities $ 39 $ (1) $ — $ — $ 39 $ (1) Unrealized losses shown in the tables above are believed to be temporary. Fair value of investments in fixed maturity debt securities change and are based primarily on market rates. As of March 31, 2021, the Company’s fixed maturity portfolio had 25 securities with gross unrealized losses totaling $83 with maturities that were in excess of 12 months and 98 securities with gross unrealized losses totaling $42 with maturities that were less than 12 months. No single issuer had a gross unrealized loss position greater than $26, or 3.5% of its amortized cost. At December 31, 2020, the Company’s fixed maturity portfolio had no securities with gross unrealized losses with maturities that were in excess of 12 months and 2 securities with gross unrealized losses totaling $1 with maturities that were less than 12 months. No single issuer had a gross unrealized loss position greater than $325(actual), or 1.6% of its amortized cost. The following tables summarize cost and fair values of the Company’s investments in equity securities as of March 31, 2021 and December 31, 2020: March 31, 2021 Estimated Cost Fair Value Equity securities $ 433 $ 500 December 31, 2020 Estimated Cost Fair Value Equity securities $ 335 $ 375 Proceeds from sales and maturities, gross realized gains, gross realized losses and net realized gains (losses) from sales and maturities of fixed maturity securities for the three months ended March 31, 2021 and December 31, 2020 consisted of the following: March 31, 2021 Gross Gross Net Realized Realized Realized Proceeds Gains Losses Losses Fixed maturity debt securities $ 59 $ — $ — $ — Equity securities — — — — Total Marketable Securities $ 59 $ — $ — $ — March 31, 2020 Gross Gross Net Realized Realized Realized Proceeds Gains Losses Losses Fixed maturity debt securities $ 18 $ — $ (3) $ (3) Equity securities — — — — Total Marketable Securities $ 18 $ 1 $ (3) $ (3)	Note 5 — Marketable Securities The Company began investing in debt securities with fixed maturities and equity securities during February 2020. The following table summarizes amortized cost, gross unrealized gains and losses, and estimated fair values of the Company's investments in fixed maturity debt securities, as of December 31, 2020: ​ Amortized Gross Gross Estimated Cost Unrealized Gains Unrealized Losses Fair Value Fixed Maturity Debt Securities ​ U.S. Treasuries $ 240 $ 6 $ — $ 246 Corporates 261 5 (1) 265 U.S. states, territories, and political subdivisions 141 5 — 146 Total Fixed Maturity Debt Securities $ 642 $ 16 $ (1) $ 657 The amortized cost and estimated fair value of the Company's fixed maturity debt securities as of December 31, 2020 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Estimated ​ Cost Fair Value Due in one year or less $ 77 $ 78 Due after one year through five years 379 388 Due after five years through ten years 186 191 Total $ 642 $ 657 The following table summarizes the Company's gross unrealized losses in fixed maturity debt securities as of December 31, 2020: Less Than 12 Months 12 Months or more Total Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Fixed maturity debt securities: Corporate Bonds $ 39 $ (1) $ — $ — $ 39 $ (1) Total Fixed Maturity Debt Securities $ 39 $ (1) $ — $ — $ 39 $ (1) Unrealized losses shown in the table above are believed to be temporary. Fair value of investments in fixed maturity debt securities change are based primarily on market rates. At December 31, 2020, the Company's fixed maturity portfolio had no securities with gross unrealized losses that were in excess of 12 months and 2 securities with gross unrealized losses totaling $1 that were less than 12 months. No single issuer had a gross unrealized loss position greater than $325 (actual), or 1.6%, of its amortized cost. The following table summarizes cost and estimated fair values of the Company's investments in equity securities, as of December 31, 2020: Estimated ​ Cost Fair Value Equity securities $ 335 $ 375 Proceeds from sales and maturities, gross realized gains, gross realized losses, and net realized gains (losses) from sales and maturities of fixed maturity debt securities for the year ended December 31, 2020 consist of the following: Gross Gross Net ​ Proceeds Realized Gains Realized Losses Realized (Losses) Fixed maturity debt securities $ 18 $ — $ — $ — Equity securities 50 1 (2) (1) Total Marketable Securities $ 68 $ 1 $ (2) $ (1)

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Fair Value of Financial Instruments
Fair Value of Financial Instruments	Note 6 — Fair Value of Financial Instruments Items Measured at Fair Value on a Recurring Basis As of March 31, 2021 and December 31, 2020, the Company held certain assets and liabilities that were required to be measured at fair value on a recurring basis. The following tables are summaries of fair value measurements and hierarchy level as of: March 31, 2021 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 37,449 $ — $ — $ 37,449 Equity securities 500 — — 500 Fixed maturity debt securities, including cash equivalents — 233,193 233,193 Total Assets: $ 37,949 $ 233,193 $ — $ 271,142 Liabilities: Merger warrant liability 16,705 9,962 — 26,667 Earnout shares — — 42,438 42,438 Total Liabilities: $ 16,705 $ 9,962 $ 42,438 $ 69,105 December 31, 2020 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 405 $ — $ — $ 405 Equity securities 375 — — 375 Fixed maturity debt securities 246 411 — 657 Total Assets: $ 1,026 $ 411 $ — $ 1,437 Liabilities: Redeemable convertible preferred stock tranche obligation $ — $ — $ 2,832 $ 2,832 Historic warrants liability — — 144 144 Total Liabilities: $ — $ — $ 2,976 $ 2,976 Money market funds consist of highly liquid investments with original maturities of three months or less and classified in restricted cash in the accompanying condensed consolidated balance sheets. The Company recognizes transfers between the levels as of the actual date of the event or change in circumstances that caused the transfer. There were no transfers between the levels during the three months ended March 31, 2021 and 2020. The following tables set forth a summary of changes in the estimated fair value of the Company’s Level 3 redeemable convertible preferred stock tranche obligation, historic warrants liability and earnout shares for the three months ended March 31, 2021 and 2020: January 1, Change in March 31, 2021 Issuances Settlements fair value 2021 Redeemable convertible preferred stock tranche obligation $ 2,832 $ — $ (2,832) $ — $ — Historic warrants liability 144 — (144) — — Earnout shares — 74,284 — (31,846) 42,438 Total $ 2,976 $ 74,284 $ (2,976) $ (31,846) $ 42,438 January 1, Change in March 31, 2020 Issuances Settlements fair value 2020 Redeemable convertible preferred stock tranche obligation $ 3,755 $ — $ — $ (284) $ 3,471 Historic warrants liability 115 — — (13) 102 Total $ 3,870 $ — $ — $ (297) $ 3,573 The fair value of the earnout shares was estimated by utilizing a Monte-Carlo simulation model. The inputs into the Monte-Carlo pricing model included significant unobservable inputs. The table below summarizes the significant inputs used when valuing the earnout shares as of: March 31, 2021 January 21, 2021 Expected volatility 80.00 % 80.00 % Starting stock price $ 7.13 $ 11.31 Expected term (in years) 4.7 years 5 years Risk-free interest rate 0.87 % 0.45 % Earnout hurdle $ 12.50–$15.00 $ 12.50–$15.00 Fair Value of Financial Instruments Not Measured at Fair Value on a Recurring Basis The carrying amounts of restricted cash, accounts receivable and accounts payable approximate fair value because their respective maturities are less than three months. Beginning March 10, 2021, the Company entered into a $30,000 floor plan credit facility with Ally Financial. Concurrently, proceeds from the agreement were used to settle outstanding debt obligations on the Company’s preexisting floor plan facility with Automotive Finance Corporation (“AFC”). The carrying value of the Ally Financial floor plan notes payable outstanding as of March 31, 2021 approximates fair value due to its variable interest rate determined to approximate current market rates.	Note 6  —  Fair Value of Financial Instruments Items Measured at Fair Value on a Recurring Basis As of December 31, 2020 and December 31, 2019, the Company held certain assets and liabilities that were required to be measured at fair value on a recurring basis. The following tables are summaries of fair value measurements and hierarchy level as of December 31, 2020 and 2019: 2020 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 405 $ — $ — $ 405 Equity securities 375 — — 375 Fixed maturity debt securities 246 411 — 657 Total Assets: 1,026 411 — 1,437 Liabilities: Redeemable convertible preferred stock tranche obligation — — 2,832 2,832 Stock warrants liability — — 144 144 Total Liabilities: $ — $ — $ 2,976 $ 2,976 2019 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 688 $ — $ — $ 688 Liabilities: Redeemable convertible preferred stock tranche obligation — — 3,755 3,755 Stock warrants liability — — 115 115 Total Liabilities: $ — $ — $ 3,870 $ 3,870 Money market funds consist of highly liquid investments with original maturities of three months or less and classified in restricted cash in the accompanying consolidated balance sheets. The Company recognizes transfers between the levels as of the actual date of the event or change in circumstances that caused the transfer. There were no transfers between the levels during the years ended December 31, 2020 and 2019. The following tables set forth a summary of changes in the estimated fair value of the Company’s Level 3 redeemable convertible preferred stock tranche obligation and Level 3 stock warrants liability for the years ended December 31, 2020 and 2019: Change in Year-ended December 31, 2020 January 1, Issuances Settlements Fair Value December 31, Redeemable convertible preferred stock tranche obligation $ 3,755 $ — $ — $ (923) $ 2,832 Stock warrants liability 115 15 — 14 144 Total $ 3,870 $ 15 $ — $ (909) $ 2,976 Change in Year-ended December 31, 2019 January 1, Issuances Settlements Fair Value December 31, Redeemable convertible preferred stock tranche obligation $ 3,261 $ — $ (902) $ 1,396 $ 3,755 Stock warrants liability 67 72 — (24) 115 Total $ 3,328 $ 72 $ (902) $ 1,372 $ 3,870 The fair value of the obligation to purchase future tranches of Series A Preferred Stock was estimated by utilizing the Black Scholes pricing model. The inputs into the Black Scholes pricing model included significant unobservable inputs. The table below summaries the significant inputs used when valuing the redeemable convertible preferred stock tranche obligation as of December 31, 2020 and 2019: 2020 2019 Expected volatility % % Expected dividend yield 0.00 % 0.00 % Expected term (in years) 4 years 5 years Risk-free interest rate % % Marketability discount % % Fair Value of Financial Instruments Not Measured at Fair Value on a Recurring Basis The carrying amounts of restricted cash, accounts receivable, and accounts payable approximate fair value because their respective maturities are less than three months. The carrying value of the floor plan notes payable outstanding as of December 31, 2020 and December 31, 2019 approximates its fair value due to its variable interest rate determined to approximate current market rates. The convertible note payable was issued on December 20, 2019 and was entered into at prevailing interest rates on the date of issuance. Given the proximity of the issuance of the convertible note payable to December 31, 2019, the fair value of the convertible note payable was determined to approximate carrying value as of December 31, 2019. The fair value of the convertible note is $3,264 versus a carrying value of $3,325 as of December 31, 2020. The difference between the carrying value and the fair value of the Paycheck Protection Program (PPP) loan of $1,749 as of December 31, 2020 is immaterial. The Promissory Note with a carrying value of $2,990 was issued on December 2, 2020 and was entered into at prevailing interest rates on the date of issuance. Given the proximity of the issuance of the Promissory Note payable to December 31, 2020, the fair value of the Promissory Note was determined to approximate carrying value as of December 31, 2020.

Accounts Receivable, Net

Accounts Receivable, Net	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accounts Receivable, Net
Accounts Receivable, Net	Note 7 — Accounts Receivable, Net The following table summarizes accounts receivable as of: ​ March 31, December 31, 2021 2020 Contracts in transit $ 8,521 $ 3,321 Trade 243 240 Finance commission 329 132 Other 298 506 Total 9,391 4,199 Allowance for doubtful accounts (67) (67) Total Accounts Receivable, net $ 9,324 $ 4,132	Note 7 — Accounts Receivable, Net Accounts receivable consist of the following as of December 31, 2020 and 2019: 2020 2019 Contracts in transit $ 3,321 $ 2,645 Trade 240 202 Finance commission 132 87 Other 506 349 Total 4,199 3,283 Allowance for doubtful accounts (67) (27) Total Accounts Receivable, net $ 4,132 $ 3,256 Contracts in transit are typically collected within fifteen days. Other amounts due are from third parties as a result of vehicle sales and parts sold or services provided. Receivables also include commissions on aftermarket products. Receivables from the sale of vehicles are secured by the related vehicles. Receivables arising from the sale of parts and service are uncollateralized customer obligations due under normal trade terms requiring payment within 30 days from the invoice date. The carrying amount of receivables is reduced by an allowance for doubtful accounts that reflects management’s best estimate of the amounts that will not be collected. Management reviews each receivable balance monthly, and, based on historical bad debt experience and management’s evaluation of customer creditworthiness, estimates that portion, if any, of the balance that will not be collected. No interest is charged on delinquent receivables.

Inventory and Floor Plan Notes

Inventory and Floor Plan Notes Payable	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Inventory and Floor Plan Notes Payable
Inventory and Floor Plan Notes Payable	Note 8 — Inventory and Floor Plan Notes Payable The following table summarizes inventory as of: ​ March 31, December 31, 2021 2020 Used vehicles $ 9,274 $ 11,202 Parts 37 — Total $ 9,311 $ 11,202 Beginning March 10, 2021, the Company entered into a $30,000 floor plan credit facility with Ally Financial to finance the acquisition of used vehicle inventory. Concurrently, proceeds from the agreement were used to settle outstanding debt obligations on the Company’s preexisting floor plan facility with AFC. Borrowings under the Ally Financial facility accrue interest at a variable rate based on the most recent prime rate plus 2.50% per annum. The prime rate as of March 31, 2021 was 3.25%. Floor plan notes payable are generally due upon the sale of the related used vehicle inventory.	Note 8 — Inventory and Floor Plan Notes Payable Inventory consists of the following as of December 31, 2020 and 2019: 2020 2019 Used vehicles $ 11,202 $ 7,592 Parts — 33 Total $ 11,202 $ 7,625 As of December 31, 2020, the Company has a $12,000 revolving floor plan facility with Automotive Finance Corporation (“AFC”) to finance the acquisition of used vehicle inventory. Borrowings under this facility accrue interest at a variable rate based on the most recent prime rate plus 2.00% per annum. The weighted average interest rate on the floor plan notes payable was 5.25% and 6.75% as of December 31, 2020 and 2019, respectively. Floor plan notes payable are generally due upon the sale of the related used vehicle inventory.

Property and Equipment, Net

Property and Equipment, Net	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Property and Equipment, Net
Property and Equipment, Net	Note 9 — Property and Equipment, Net The following table summarizes property and equipment as of: March 31, December 31, 2021 2020 Capital lease asset building $ 1,305 $ 1,305 Leasehold improvements 887 702 Furniture, fixtures and equipment 1,161 760 Corporate vehicles 143 143 Total property and equipment 3,496 2,910 Less: accumulated depreciation (1,147) (1,042) Property and Equipment, net $ 2,349 $ 1,868 Depreciation expense for property and equipment was approximately $105 and $51 for the three months ended March 31, 2021 and 2020, respectively.	Note 9 — Property and Equipment, Net Property and equipment consist of the following as of December 31, 2020 and 2019: 2020 2019 Capital lease asset building $ 1,305 $ — Leasehold improvements 702 688 Furniture, fixtures, and equipment 760 715 Corporate vehicles 143 104 Total property and equipment 2,910 1,507 Less: accumulated depreciation (1,042) (876) Property and Equipment, net $ 1,868 $ 631 Depreciation expense for property and equipment was approximately $195, $260 and $253 for the years ended December 31, 2020, 2019 and 2018, respectively. On December 23, 2020, the Company entered into a capital lease for a new hub location building. Amortization of the capital lease asset for the year ended December 31, 2020 was $0 and is included in depreciation expense in the consolidated statements of operations.

Lease Vehicles, Net

Lease Vehicles, Net	12 Months Ended
	Dec. 31, 2020
Lease Vehicles, Net
Lease Vehicles, Net	Note 10 — Lease Vehicles, Net Lease vehicles, net consists of the following as of December 31, 2020 and 2019: 2020 2019 Vehicles $ 629 $ 1,083 Less: accumulated depreciation (456) (639) Total Lease Vehicles, net $ 173 $ 444 Depreciation expense for lease vehicles, net was approximately $146, $244 and $85 for the years ended December 31, 2020, 2019 and 2018, respectively. Lease vehicles are leased to end customers under various noncancelable operating leases with terms ranging up to five years and payments varying from $323 to $780 (actual) per month. When a customer requests a vehicle lease, the Company may enter into a lease with its customer for a vehicle owned by the Company. Income received for leases of owned vehicles under noncancelable operating leases is recorded in Lease income, net in the consolidated statements of operations. The following table summarizes minimum rental payments due to the Company on leases of owned vehicles under noncancelable operating leases having initial or remaining noncancelable terms in excess of one year as of December 31, 2020: Minimum Rental Receipts Year Under Operating Leases 2021 $ 37 2022 24 2023 2 Total $ 63

Other Assets

Other Assets	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Assets
Other Assets	Note 10 — Other Assets The following table summarizes other assets as of: March 31, December 31, 2021 2020 Other Current Assets: Lease receivable, net $ 22 $ 36 Stock issuance costs 47 72 Prepaid expenses 5,857 679 Interest receivable 729 — Deferred transaction costs — 5,892 Total Other Current Assets $ 6,655 $ 6,679 Other Assets: Lease receivable, net $ 16 $ 16 Stock issuance costs 72 48 Security deposits 3,249 235 Total Other Assets $ 3,337 $ 299	Note 11 — Other Assets Other Assets consists of the following as of December 31, 2020 and 2019: 2020 2019 Other Current Assets: Lease receivable, net $ 36 $ 13 Deferred acquisition costs 72 32 Prepaid expenses 679 189 Stock issuance costs 5,892 — Total Other Current Assets $ 6,679 $ 234 Other Assets: Lease receivable, net $ 16 $ 38 Deferred acquisition costs 48 50 Security deposits 235 255 Total Other Assets $ 299 $ 343 Stock issuance costs consist of legal, accounting, underwriting fees and other costs that are directly related to the Merger. Stock issuance costs amounting to approximately $5,892 as of December 31, 2020 will be charged to shareholder’s equity upon completion of the Merger. See Note 24 — Subsequent Events for additional information on the Merger. The following table summarizes deferred acquisition costs that the Company has deferred and is amortizing over the effective term of the related contracts as of December 31, 2020 and 2019: 2020 2019 Beginning $ 82 $ 22 Written 173 93 Amortized (135) (33) Ending 120 82 Less: current portion 72 32 Non-current 48 50 Total Deferred Acquisition Costs $ 120 $ 82

Long-term Debt

Long-term Debt	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Long-term Debt
Long-term Debt	Note 11 — Long-term Debt The following table summarizes long-term debt as of: ​ March 31, December 31, 2021 2020 Capital lease obligation $ 1,305 $ 1,305 Promissory note — 2,990 Convertible notes payable, net — 3,325 Paycheck Protection Program loan — 1,749 ​ 1,305 9,369 Current portion of long-term debt (55) (6,370) Long-term Debt $ 1,250 $ 2,999 Promissory Note Concurrently with the closing of the Merger on January 21, 2021, the promissory note was extinguished through a cash payment of $3.0 million. Convertible Notes Payable On December 20, 2019, the Company entered into a note purchase agreement (“NPA”) with AFC. AFC’s parent company was also a common stockholder of Former CarLotz. For each convertible note of $1,000 or portion thereof that AFC purchased, AFC received warrants (historic warrants) constituting 0.20% of Former CarLotz’ fully-diluted common stock. As of December 31, 2020, the Company had a convertible note balance of $3,500. The note accrued interest at 6.00% on a 365-day basis and the outstanding interest payable as of December 31, 2020 was approximately $212. Concurrently with the closing of the Merger on January 21, 2021, the historic warrants and the note were converted to a fixed number of shares pursuant to a conversion agreement with AFC. The convertible notes were extinguished by issuing AFC 347,992 shares of Former CarLotz common stock and the warrants were exercised into 73,869 shares of Former CarLotz common stock. There are no historic warrants outstanding subsequent to the exercise. Payroll Protection Program Loan In April 2020, the Company received a Paycheck Protection Program (“PPP”) loan, a new loan program under the Small Business Administration’s 7(a) program providing loans to qualifying businesses, totaling approximately $1,749. As of December 31, 2020, the Company had an outstanding PPP loan balance of $1,749, which was subsequently repaid extinguished concurrently with the closing of the Merger.	Note 12 — Long-term Debt Long-term debt, including capital lease obligations, consists of the following as of December 31, 2020 and 2019: 2020 2019 Term note payable $ — $ 9 Capital lease obligation 1,305 — Promissory note 2,990 — Convertible notes payable, net 3,325 2,816 Paycheck Protection Program loan 1,749 — 9,369 2,825 Current portion of long-term debt (6,370) (2,825) Long-term Debt $ 2,999 $ — Term Note Payable The Company had a note payable to a financial institution due in monthly installments of approximately $1, including interest of 16.01% through December 2020. The note is secured by real property. The balance as of December 31, 2020 and 2019 was $0 and $9, respectively. Capital Lease Obligation The Company entered into a 10-year and three-month lease for a new hub location building that commenced on December 23, 2020 and is set to expire on March 23, 2031. As lessee, CarLotz is obligated to pay the lessor total future minimum lease payments of $1,971. This capital lease does not carry an explicit interest rate but is subject to an annual rent escalation of 2.0% throughout the lease term. At the end of the lease term, CarLotz has three 5-year renewal options with the same terms of 2.0% annual rent escalations. Promissory Note On December 2, 2020, the Company entered into a promissory note with AFC. Under this promissory note, the Company borrowed a principal sum of $3,000 which was recorded net of issuance costs of $10. The promissory note is due and payable upon the earlier to occur of (i) an Event of Default, as defined below and in the promissory note, (ii) the Merger Closing Date, as defined below and in the merger agreement, dated as of October 21, 2020 (as amended), between Acamar Partners Acquisition Corp and the Company (See Note 24—Subsequent Events for additional details) , and (iii) two years from the date of the note, December 2, 2022. Interest on the promissory note accrues at a fixed rate equal to 6% per annum and totaled $15 from December 2, 2020 to December 31, 2020. An Event of Default is defined as either a) the Payor defaults in the payment of any amount owing under the note or other payment obligation to Payee when due (whether at stated maturity, by acceleration, upon optional or mandatory prepayment, or otherwise) or b) the Payor i) is dissolved; ii) makes a general assignment, arrangement or composition with or for the benefit of its creditors; iii) institutes or has instituted against it a proceeding seeking a judgement of insolvency or bankruptcy or any other relief under any bankruptcy or insolvency law or similar law affecting creditors' rights, or a petition is presented for its winding-up or liquidation, and, in the case of any such proceeding or petition (x) results in a judgment of insolvency or bankruptcy or the entry of an order for relief or the making of an order for its winding-up or liquidation, or y) is not dismissed, discharged, stayed or restrained in each case within 60 days of the institution of presentation thereof; iv) has a resolution passed for its winding-up, official management or liquidation (other than pursuant to a consolidation, amalgamation or merger); or v) seeks or becomes subject to the appointment of an administrator, provisional liquidator, conservator, receiver, trustee, custodian or other similar official for it or for all or substantially all its assets. The Closing is defined in the merger agreement as the date which is second Business Day after the date on which all conditions set forth in Article VII (of the merger agreement) shall have been satisfied or waived (other than those conditions that by their terms are to be satisfied at the Closing, but subject to the satisfaction or waiver thereof) or such other time and place as Acquiror and the Company may mutually agree in writing. The Merger Closing Date is defined as the date on which the Closing actually occurs. Convertible Notes Payable On December 20, 2019, the Company entered into a note purchase agreement (“NPA”) with AFC. AFC’s parent company is also a common equity holder of the Company. Under this agreement, AFC agreed to purchase up to $5,000 in notes, with the initial tranche equal to $3,000 and up to two additional tranches of at least $1,000 on or prior to September 20, 2021. For each note of $1,000 or portion thereof that AFC purchases, AFC receives stock warrants constituting 0.20% of the Company’s fully-diluted common stock. In December 2019, AFC purchased the initial tranche of $3,000, which were recorded as a convertible notes payable net of issuance costs totaling approximately $112 and net of the fair value of stock warrants issued of $72. On April 8, 2020, the Company entered into an Amendment to the NPA to allow for up to four additional tranches of $500 each, instead of two additional tranches of at least $1,000 each, as stated in the NPA. As a result, the Company issued a second tranche of convertible notes of $500 in the second quarter of 2020. The note accrues interest at 6.00% on a 365-day basis and the outstanding interest payable as of December 31, 2020 and 2019 is approximately $212 and $6, respectively. AFC has the right to convert this note into a variable number of shares of the Company’s common stock at any time. The note is due on demand and is reflected as Long-term debt, current on the accompanying consolidated balance sheets. Since the note has a conversion price that was not in the money at the date of issuance, there was no beneficial conversion feature recorded. On the date of issuance, the Company also assessed the conversion feature for possible derivative treatment (under ASC 815 Derivatives and Hedging ) and determined the conversion feature did not meet the definition of a derivative because the embedded conversion option requires physical settlement and the underlying shares to be delivered upon conversion are not readily convertible to cash. The fair value of the stock warrants has been estimated using the Black-Scholes pricing model with the following weighted average assumptions: Maturity 4 years Risk-free interest rate 0.27 % Volatility 85.00 % Dividend yield 0.00 % Weighted average fair value per common share 1.89 The exercise price of the stock warrants is $0.01 per share (actual). The stock warrants are only exercisable upon a sale or change of control. No stock warrants were exercised during the year. The stock warrants met the definition of a derivative in accordance with ASC 815 and were classified as a liability because they permit a cash exercise which is considered a contractual net settlement provision. The fair value of the stock warrants has been included in Other liabilities in the consolidated balance sheets. Changes in the fair value of the stock warrants liability were recognized as a component of Other income (expense), net in the consolidated statements of operations. The following is an analysis of stock warrants to purchase shares of the Company’s common stock issued and outstanding as of December 31, 2020 and 2019. The stock warrantss are presented on an as converted basis at the ratio of 10.1927: 2020 2019 Stock warrants outstanding, January 1 699,026 239,121 Stock warrants issued with convertible notes payable 78,239 459,905 Stock warrants cancelled — — Stock warrants exercised — — Stock warrants outstanding, December 31 777,265 699,026 Paycheck Protection Program Loan In April 2020, the Company received a PPP loan, a new loan program under the Small Business Administration's 7(a) program providing loans to qualifying businesses, totaling approximately $1,749. The full amount of the PPP loan was repaid in connection with the closing of the merger with Acamar Partners Acquisition Corp ("Acamar"). Subsequent to year end December 31, 2020, and as a result of the Acamar Partners Acquisition Corp. Merger, CarLotz settled its debt obligations, excluding the floor plan facility and capital lease obligation. See Note 24—Subsequent Events for additional details about the merger with Acamar.

Accrued Expenses

Accrued Expenses	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accrued Expenses
Accrued Expenses	Note 12 — Accrued Expenses The following table summarizes accrued expenses as of: March 31, December 31, 2021 2020 License and title fees $ 1,634 $ 785 Payroll and bonuses 2,038 837 Deferred rent 262 199 Technology 2,900 — Other 4,316 1,742 Total Accrued Expenses $ 11,150 $ 3,563	Note 13 — Accrued Expenses Accrued expenses consist of the following as of December 31, 2020 and 2019: 2020 2019 License and title fees $ 785 $ 399 Payroll and bonuses 837 388 Deferred rent 199 300 Other accrued expenses 1,742 489 Total Accrued Expenses $ 3,563 $ 1,576 The Company had accrued transaction expenses of $6,052 as of December 31, 2020, including legal, accounting, underwriting fees and other costs that are directly related to the Acamar Partners Acquisition Corp. Merger. See Note 24—Subsequent Events for additional information on the merger.

Orange Grove Promissory Notes

Orange Grove Promissory Notes	12 Months Ended
	Dec. 31, 2020
Orange Grove Promissory Notes
Orange Grove Promissory Notes	Note 14 — Orange Grove Promissory Notes During 2018, Orange Grove issued a promissory note of approximately $515 to the former holder of the 80% membership interest in Orange Grove, with an interest rate of 8.00%, as part of the consideration for the redemption of such membership interest (See Note 1 — Description of Business). As of December 31, 2018, the promissory note balance was $418. The balance was paid in full during the year ended December 31, 2019. Interest expense for the years ended December 31, 2019 and 2018 was $19 and $11, respectively.

Other Liabilities

Other Liabilities	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Liabilities
Other Liabilities	Note 13 — Other Liabilities The following table summarizes other liabilities as of: March 31, December 31, 2021 2020 Other Liabilities, Current Unearned insurance premiums $ 815 $ 257 Other Liabilities Unearned insurance premiums 1,423 1,680 Other long-term liabilities 147 135 Historic warrants liability — 144 Other Liabilities, Long-term $ 1,570 $ 1,959	Note 15 — Other Liabilities Other Liabilities consists of the following as of December 31, 2020 and 2019: 2020 2019 Other Liabilities, Current Unearned insurance premiums $ 257 $ 434 Other Liabilities Unearned insurance premiums 1,680 719 Other long-term liabilities 135 97 Stock warrants liability 144 115 Other Liabilities, Long-term $ 1,959 $ 931

Lease Commitments

Lease Commitments	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Lease Commitments
Lease Commitments	Note 14 — Lease Commitments The Company leases its operating facilities from various third parties under non-cancelable operating leases. The leases require various monthly rental payments ranging from approximately $3 to $36, with various ending dates through July 2031. The leases are triple net, whereby the Company is liable for taxes, insurance and repairs. Rent expense for all operating facility leases was approximately $688 and $462 for the three months ended March 31, 2021 and 2020, respectively. Most of these leases have escalating rent payments, which are being expensed on a straight-line basis and are included in deferred rent, within Accrued expenses. The following is a table of facility lease commitments due for the next five years and thereafter as of March 31, 2021: Total Capital Total Per Year Leases 2021 (remaining) $ 2,158 $ 139 2022 3,675 183 2023 3,535 187 2024 2,552 190 2025 2,339 194 Thereafter 3,977 1,078 Total $ 18,236 $ 1,971 Less: amount representing interest $ (666) Present value of minimum lease payments $ 1,305 Less: current obligation $ (55) Long-term obligations under capital lease $ 1,250 The Company also leases vehicles from a third party under noncancelable operating leases and leases these same vehicles to end customers with similar lease terms, with the exception of the interest rate. The leases require various monthly rental payments from the Company ranging from $291 to $1,770 (actual) with various ending dates through June 2025. The following is a schedule of the approximate future minimum lease payments due to third parties and the related expected future receipts related to these lease vehicles as of March 31, 2021: Payments Due to Third-Parties Future Receipts 2021 (remaining) $ 1,225 $ 1,473 2022 1,158 1,389 2023 731 865 2024 312 367 2025 11 13 Total $ 3,437 $ 4,107	Note 16 — Lease Commitments The Company leases its operating facilities from various third parties under noncancelable operating leases. The leases require various monthly rental payments ranging from approximately $3 to $50 with various ending dates through March 2031. The leases are triple net, whereby the Company is liable for taxes, insurance and repairs. Rent expense for all operating facility leases was approximately $1,720, $2,000 and $1,000 for the years ended December 31, 2020, 2019, and 2018, respectively. Most of these leases have escalating rent payments which are expensed on a straight-line basis and are included in deferred rent, within accrued expenses on the accompanying consolidated balance sheets. The following is a table of facility lease commitments due for the next five years, and thereafter as of December 31, 2020: Operating Leases Capital Leases 2021 $ 2,303 $ 139 2022 2,372 183 2023 2,209 187 2024 1,216 190 2025 993 194 Thereafter 511 1,078 Total Minimum Lease Payments $ 9,604 $ 1,971 Less: amount representing interest (666) Present value of minimum lease payments 1,305 Less: current obligation (55) Long-term obligations under capital lease $ 1,250 The Company is obligated under capital leases for a hub location which expires in March 2031. The Company recorded the lease liability at the fair market value of the underlying asset of $1,305 in the consolidated balance sheets. The Company also leases vehicles from unrelated third parties under noncancelable operating leases and leases these same vehicles to end customers with similar lease terms, with the exception of the interest rate. The leases require various monthly rental payments from the Company ranging from $291 to $1,770 (actual) with various ending dates through December 2023. The following is a schedule of the approximate future minimum lease payments due to third parties and the related expected future receipts related to these lease vehicles as of December 31, 2020: Payments Due to Third Parties Future Receipts 2021 $ 1,538 $ 1,862 2022 1,024 1,236 2023 596 711 2024 194 233 2025 2 3 Total $ 3,354 $ 4,045

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Related Party Transactions
Related Party Transactions	Note 17 — Related Party Transactions During the normal course of business, Orange Grove may purchase used vehicles from the Company as well as sell off-lease vehicles through the Company. These transactions were immaterial prior to the consolidation of Orange Grove, and the transactions were handled as any other third party with terms the same as other customers. Subsequent to the Company becoming sole member of Orange Grove on September 13, 2018, such sales have been eliminated in consolidation. Prior to becoming the sole member of Orange Grove and as part of the arrangement with the previous majority owner, Orange Grove paid a management fee to the Company and reimbursed the Company for the salaries and expenses of the employees dedicated to the business of the fleet vehicle joint venture. For the year ended December 31, 2018, management fee income received from Orange Grove was approximately $127, and expense reimbursements totaled approximately $250. The management fee and expense reimbursement ceased when the Company became the sole member of Orange Grove. The Company incurs monthly management fees of $21 payable to a major shareholder , or approximately $250 per year, payable to the major shareholder, of which $331 and $250 is accrued as of December 31, 2020 and 2019, respectively. The management fee expenses are reflected as Management fee expense — related party on the accompanying consolidated statements of operations. The Company has a payable to the major shareholder totaling approximately $5,100 and $3,100 as of December 31, 2020 and 2019, respectively, which is included in Accrued expenses — related party on the accompanying consolidated balance sheets. Subsequent to year end December 31, 2020, and as a result of the Merger, the monthly management fees incurred and payable amount due to the major shareholder were settled and the agreement was terminated. See Note 24—Subsequent Events for additional detail.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Commitments and Contingencies.
Commitments and Contingencies	Note 15 — Commitments and Contingencies The Company sells retail installment contracts to financial institutions without recourse. Some buyers of the contracts retain portions of the finance commissions as reserves against early payoffs. The Company is subject to chargebacks against such income in the event of a cancellation or early payoff. The Company’s facilities are subject to federal, state and local provisions regulating the discharge of materials into the environment. Compliance with these provisions has not had, nor does the Company expect such compliance to have, any material effect upon the capital expenditures, net income, financial condition or competitive position of the Company. Management believes that its current practices and procedures for the control and disposition of such materials comply with the applicable federal and state requirements. The Company is involved in certain legal matters that it considers incidental to its business. In management’s opinion, none of these legal matters will have a material effect on the Company’s financial position or results of operations.	Note 18—Commitments and Contingencies The Company sells retail installment contracts to financial institutions without recourse. Some buyers of the contracts retain portions of the finance commissions as reserves against early payoffs. The Company is subject to chargebacks against such income in the event of a cancellation or early payoff. The Company’s facilities are subject to federal, state and local provisions regulating the discharge of materials into the environment. Compliance with these provisions has not had, nor does the Company expect such compliance to have, any material effect upon the capital expenditures, net income, financial condition or competitive position of the Company. Management believes that its current practices and procedures for the control and disposition of such materials comply with the applicable federal and state requirements. The Company is involved in certain legal matters that it considers incidental to its business. In management’s opinion, none of these legal matters will have a material effect on the Company’s financial position or the results of operations.

Redeemable Convertible Preferre

Redeemable Convertible Preferred Stock	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Redeemable Convertible Preferred Stock
Redeemable Convertible Preferred Stock	Note 16 — Redeemable Convertible Preferred Stock As of December 31, 2020, the Amended and Restated Certificate of Incorporation of Former CarLotz provided for two classes of ownership: common stock and Series A Preferred Stock. The holder of the Series A Preferred Stock received distribution priority in order of 1.5 times the sum of any unpaid returns and unreturned capital contributions. Preferred returns were calculated at an 8.00% annual rate. Unpaid cumulative distributions were approximately $4,800 as of December 31, 2020, and the Series A Preferred Stock had a liquidation preference of $37,114 as of December 31, 2020. Upon liquidation of Former CarLotz, proceeds in excess of the Series A Preferred Stock would have been shared pro rata among all stockholders based on the number of shares. The unpaid cumulative distributions are included as Accrued expenses — related party on the accompanying condensed consolidated balance sheets. As a result of the Merger, the Company settled Former CarLotz’ redeemable convertible preferred stock and redeemable convertible preferred stock tranche obligation with carrying values of $17,560 and $2,832, respectively, as of December 31, 2020.	Note 19 — Redeemable Convertible Preferred Stock The Amended and Restated Certificate of Incorporation of the Company provides for two classes of ownership: Common stock and Series A Preferred Stock. The holder of Series A Preferred Stock receives distribution priority in order of 1.5 times the sum of any unpaid returns and unreturned capital contributions. Preferred returns are calculated at an 8.00% annual rate. Unpaid cumulative distributions are approximately $4,800 and $2,900 as of December 31, 2020 and 2019, respectively. As of December 31, 2020 and 2019, the Series A Preferred Stock has a liquidation preference of $37,114 and $34,300, respectively. Upon liquidation of the Company, proceeds in excess of the Series A Preferred Stock would be shared pro rata among all stockholders based on the number of shares. The unpaid cumulative distributions are included as accrued expenses — Related Party on the accompanying consolidated balance sheets. The Company’s Series A Preferred Stock is classified as temporary equity. ASC 480 Distinguishing Liabilities from Equity , Accounting Series Release 268 requires equity instruments with redemption features that are not solely within the control of the issuer to be classified outside of permanent equity, in temporary equity. The Series A Preferred Stock is redeemable for cash and other assets on the occurrence of a deemed liquidation event such as a change of control which is considered an event that is not solely within the control of the Company because the holders of the Series A Preferred Stock control the Company’s Board of Directors. The Company’s September 2017 issuance and sale of Series A Preferred Stock is to be issued in four tranches on different dates. The first issuance of 1,220,851 preferred shares occurred in September 2017. The second tranche closing of 813,900 shares was contingent upon the achievement of certain performance conditions before December 31, 2020 (“Tranche Two Performance Date”) or the waiver of the performance conditions by the holders of the Series A Preferred Stock. The performance conditions are defined in the Series A Preferred Stock Purchase Agreement and are based on the achievement of operating metrics such as earnings before interest, taxes, depreciation, and amortization exceeding targets for existing stores, achievement of opening a minimum number of new stores and meeting financial targets for those new stores, corporate overhead goals, and commercial vehicle sales objectives. Upon the attainment or waiver of the performance conditions, the founding stockholders of the Company may cause the Company to issue and sell to the Series A Preferred Stockholders the shares contemplated in the second tranche closing. The Company classified the obligation for the future purchase of additional shares under the second closing as a liability on the Company’s consolidated balance sheets as the obligation met the definition of a freestanding financial instrument. This Series A Preferred Stock tranche liability was initially recorded at a fair value of $482 upon the date of issuance and was subsequently remeasured to fair value at each reporting date using Level 3 fair value inputs. Changes in the fair value of the Series A Preferred Stock tranche obligation were recognized as a component of other income (expense), net in the consolidated statements of operations until the tranche obligation was fulfilled and extinguished. The second tranche was funded in two separate closings in January 2019 for 305,188 shares and May 2019 for 508,712 shares. The 2017 Series A Preferred Stock Purchase Agreement contains two additional funding dates such that, contingent upon the Tranche Two Performance Date, the stockholders of the Series A Preferred Stock have the right, but not the obligation, to purchase an additional 508,688 shares in each tranche at a price equal to the original issuance purchase price. The third and fourth tranche obligations were initially recorded at a fair value of $1,214 each and were subsequently remeasured to fair value at each reporting date with changes in the fair value of the Series A Preferred Stock tranche obligation recognized in other income (expense), net in the consolidated statements of operations. Significant terms of the outstanding Series A Preferred Stock are as follows: 1) Conversion  — Each share of Series A Preferred Stock may be converted into shares of common stock based upon dividing the original issue price of the Series A Preferred Stock by the conversion price. Conversion is (a) at the option of the preferred stockholders and (b) mandatory upon the closing of an initial public offering of the Company’s common stock, meeting certain minimum requirements with respect to net cash proceeds, and upon the consent of a majority of the outstanding shares of Series A Preferred Stock. In accordance with ASC 480, the conversion feature was determined to be clearly and closely related to the host contract and was not bifurcated from the equity-like host instrument and accounted for separately. In addition, the conversion feature was not determined to be a beneficial conversion feature because there was zero intrinsic value to the conversion option at the commitment date. 2) Dividends  — The holders of Series A Preferred Stock are entitled to receive, in any fiscal year, cumulative dividends which accrue at the rate of 8.00% of the original issuance price, plus all accrued but unpaid dividends, compounded quarterly. As of December 31, 2020 and 2019, the aggregate cumulative preferred dividends were approximately $4,800 and $2,900, respectively, or an amount per outstanding share of Series A Preferred Stock of $2.34 and $1.41, respectively. 3) Liquidation  — In the event of any liquidation, dissolution or winding-up of the Company, either voluntarily or involuntarily, the holders of Series A Preferred Stock are entitled to receive from the remaining assets of the Company available for distribution, before any payment shall be made in respect of the common stock, an amount equal to 1.5 times the sum of the per share original issuance price of Series A Preferred Stock, plus any dividends thereon declared but unpaid. If the assets of the Company available for distribution are not sufficient to pay the full amount of distribution, plus any dividends thereon declared but unpaid, such assets will be distributed ratably in proportion to the respective amounts per share that each holder is entitled to receive. 4) Redemption — Shares of Series A Preferred Stock are not subject to mandatory redemption. 5) Voting Rights  — Each share of Series A Preferred Stock has voting rights equal to the number of common shares into which it is convertible. Additionally, upon the initial funding of the Series A Preferred Stock, the holders of the Series A Preferred Stock were entitled to elect three members to the Company’s Board of Directors. Upon the funding of the second tranche of the Series A Preferred Stock, the Series A holders were entitled to elect a total of five directors to the Company’s Board of Directors. 6) Other Rights — At any time from and after September 15, 2024, the holders of the Series A Preferred Stock may cause a Sale of the Company by means of an Initial Public Offering or a sale of all Series A Preferred Stock owned by the holders and an exercise of its drag-along rights, a controlled auction, or a negotiated sale to a third party. These rights are subject to right of first offer from the founding stockholders to purchase the Company in the event a sales process is initiated by the holders of the Series A Preferred Stock.

Stock-Based Compensation Plan

Stock-Based Compensation Plan	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Stock-Based Compensation Plan
Stock-Based Compensation Plan	Note 17 — Stock-Based Compensation Plan Stock Option Plans The Company has three stock incentive plans, the “2011 Stock Option Plan”, the “2017 Stock Option Plan” and the “2020 Incentive Award Plan” to promote the long-term growth and profitability of the Company. The Stock Option Plans do this by providing senior management and other employees with incentive to improve shareholder value and contribute to the growth and financial success of the Company by granting equity instruments to these stakeholders. Share-based compensation expense was recorded for the three months ended March 31, 2021 and 2020 of approximately $41,963 and $34, respectively. The Company estimates the fair value of stock options using the Black-Scholes pricing model. The Black-Scholes pricing model requires the use of subjective inputs such as stock price volatility. Changes in the inputs can materially affect the fair value estimates and ultimately the amount of stock-based compensation expense that is recognized. During the three months ended March 31, 2021 and 2020, there were no grants related to the 2011 Stock Option Plan. A summary of activity for the three months ended March 31, 2021 and 2020 for the 2011 Stock Option Plan is as follows: Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 The following summarizes certain information about stock options vested and expected to vest as of March 31, 2021 related to the 2011 Stock Option Plan: Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 1,515,146 1.49 years $ 0.58 Exercisable 1,515,146 1.49 years $ 0.58 Aggregate intrinsic value represents the total pre-tax intrinsic value, which is computed based on the difference between the option exercise price and the estimated fair value of the Company’s common stock at the time such option exercises. This intrinsic value changes based on changes in the fair value of the Company’s underlying common stock. The aggregate intrinsic value for options outstanding and options exercisable as of March 31, 2021 and December 31, 2020 is $6.55. The terms of the 2017 Stock Option Plan provide for vesting upon certain market and performance conditions, including achieving certain triggering events, including specified levels of return on investment upon a sale of the Company. Because the 2017 Stock Option Plan has a market-based vesting condition, an open-form valuation model was used to value the options. All stock options related to the 2017 Stock Option Plan have an exercise price of $0.92 per share. All stock options related to the 2017 Stock Option Plan expire 10 years after the grant date, which ranges from March 2028 to October 2029. A summary of activity for the three months ended March 31, 2021 and 2020 for the 2017 Stock Option Plan is as follows: Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 The 2017 options vest upon a change of control. Although the Merger did not meet the definition of a change of control, the Company modified the awards in connection with the Merger such that all vesting conditions were waived for 3,538,672 of the options. This modification impacted 8 employees and resulted in $38,800 of share-based compensation on the modification date. The remaining options were also modified but will vest over a four year service period and impacted 16 employees. These options resulted in $186 of cash consideration and $4,500 of share based compensation that will be recognized over the four year service period. The following summarizes certain information about stock options vested and expected to vest as of March 31, 2021 related to the 2017 Stock Option Plan: ​ Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 3,961,658 8.31 years $ 0.92 Exercisable 3,538,672 8.18 years $ 0.92 The aggregate intrinsic value for options outstanding and options exercisable as of March 31, 2021 and December 31, 2020 is $6.21. The inputs used for the 2017 Stock Option Plan were as follows for the period ended March 31, 2021: Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % A summary of activity for the three months ended March 31, 2021 for the 2020 Stock Option Plan is as follows: Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 The grant date fair value of the options was $7.77. As of March 31, 2021, there was approximately $10,419 of total unrecognized compensation cost related to unvested options related to the 2020 Stock Option Plan. The inputs used for the 2020 Stock Option Plan were as follows for the period ended March 31, 2021: Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 6.25 years Risk-free interest rate 0.62 % Earnout Restricted Stock Units Former CarLotz option holders as of the effective tome of the Merger received 640,421 earnout restricted stock units (Earnout RSUs). The Earnout RSUs vest if certain targets are met in the post-Merger period. The earnouts for the Earnout RSUs are subject to an earnout period, which is defined as the date 60 months following the consummation of the Merger. The Merger closed on January 21, 2021, and the earnout period expires January 21, 2026. Earnout RSUs will vest if any of the following conditions are achieved following January 21, 2021: i. If at any time during the 60 months following the Closing Date (the first business day following the end of such period, the “Forfeiture Date”), the closing trading price of the common stock is greater than $12.50 over any 20 trading days within any 30 trading day period (the “First Threshold”), 50% of the ii. If at any time prior to the Forfeiture Date, the closing trading price of the common stock is greater than $15.00 over any 20 trading days within any 30 trading day period (the “Second Threshold”), 50% of the Earnout RSUs will vest. iii. If either the First Threshold or the Second Threshold is not met on or before the Forfeiture Date, any unvested Earnout RSUs are forfeited. All unvested Earnout RSUs will vest if there is a change of control of the Company that will result in the holders of the common stock receiving a per share price equal to or in excess of $10.00 (as equitably adjusted for stock splits, stock dividends, special cash dividends, reorganizations, combinations, recapitalizations and similar transactions affecting the common stock) prior to the Forfeiture Date. The estimated fair value of the liability is determined by using a Monte-Carlo simulation model, which incorporates various assumptions, including expected stock price volatility, contractual term, dividend yield and stock price at grant date. The Company estimates the volatility of common stock on the date of grant based on the weighted-average historical stock price volatility of comparable publicly-traded companies. A summary of activity for the three months ended March 31, 2021 for the RSUs is as follows: Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 During the period ended March 31, 2021 the Company recognized $1,753 of stock-based compensation. As of March 31, 2021, there was approximately $5,096 of total unrecognized compensation cost related to the RSUs that will be recognized during 2021. The inputs used for the Earnout RSUs were as follows for the period ended March 31, 2021: Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00	Note 20 — Stock-Based Compensation Plan 2011 Stock Option Plan In March 2011, the Company adopted a stock incentive plan (the “2011 Stock Option Plan”) to promote the long-term growth and profitability of the Company. The 2011 Stock Option Plan does this by providing senior management and other employees with incentive to improve shareholder value and contribute to the growth and financial success of the Company by granting equity instruments to these stakeholders. The Company estimates the fair value of stock options related to the 2011 Stock Option Plan using the Black-Scholes pricing model. The Black-Scholes option-pricing model requires the use of subjective inputs such as stock price volatility. Changes in the inputs can materially affect the fair value estimates and ultimately the amount of stock-based compensation expense that is recognized. The expected life input is based on the contractual term as per the agreements with employees, the risk-free interest rate input is based on U.S. Treasury instruments and the volatility input is calculated based on the implied volatility of publicly traded companies in a similar industry with adjustments for size, revenues, and business life cycle. The fair value of shares was estimated based on the Company’s per share price for common stock from the Company’s last financing round. There were no grants related to the 2011 Stock Option Plan in the years ended December 31, 2020, 2019, or 2018 and no stock options were exercised during 2020, 2019, or 2018 related to the 2011 Stock Option Plan. Share-based compensation expense for the years ended December 31, 2020, 2019, and 2018 totaled approximately $45, $113, and $151, respectively, and has been included in selling, general, and administrative expenses in the accompanying consolidated statements of operations. The following table summarizes the activity number of stock options outstanding and weighted average exercise price related to the shares set aside for the 2011 Stock Option Plan. The stock options are presented on an as converted basis at the ratio of 10.1927: 2011 Options Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 1,785,251 Granted — — Forfeited (137,601) 0.55 Balance at December 31, 2018 1,647,650 0.60 Granted — — Forfeited (76,445) 0.67 Balance at December 31, 2019 1,571,205 0.59 Granted — — Forfeited — — Balance at December 31, 2020 1,571,205 0.59 Wgt. Avg. Number of Remaining Wgt. Avg. Options Contractual Life Exercise Price Outstanding 1,571,205 Exercisable 1,494,377 As of December 31, 2020, there was approximately $33 of total unrecognized compensation cost related to unvested stock based compensation arrangements, which is expected to be recognized over a weighted-average period of 0.36 years. Aggregate intrinsic value represents the total pre-tax intrinsic value, which is computed based on the difference between the option exercise price and the estimated fair value of the Company’s common stock at the time such option exercises. This intrinsic value changes based on changes in the fair value of the Company’s underlying stock. There were no stock options exercised in the years ended December 31, 2020, 2019, or 2018. The aggregate intrinsic value for stock options outstanding and options exercisable as of December 31, 2020 is $0. 2017 Stock Option Plan During the year ended December 31, 2017, the Company adopted a stock incentive plan (the “2017 Stock Option Plan”) to promote the long-term growth and profitability of the Company. The 2017 Stock Option Plan does this by providing senior management and other employees with incentive to improve shareholder value and contribute to the growth and financial success of the Company by granting various equity arrangements to these stakeholders. The terms of the 2017 Stock Option Plan provide for vesting upon certain market and performance conditions, including achieving certain triggering events including specified levels of return on investment upon a sale of the Company. Because the 2017 Stock Option plan has a market-based vesting condition, an open-form valuation model was used to value the stock options. All stock options related to the 2017 Stock Option Plan have an exercise price of $0.92 per share. All stock options related to the 2017 Stock Option Plan expire 10 years after the grant date which ranges from March 2028 to October 2029. The following summarizes the number of stock options outstanding and weighted average exercise price related to shares set aside for the 2017 Stock Option Plan. The stock options are presented on an as converted basis at the ratio of 10.1927: 2017 Options Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Wgt. Avg. Number of Remaining Wgt. Avg. Options Contractual Life Exercise Price Outstanding Exerciseable — — — The weighted average grant date fair value of options granted during the year ended December 31, 2020, was $0.61. As of December 31, 2020, there was approximately $236 of total unrecognized compensation cost related to unvested stock options related to the 2017 Stock Option Plan. Management determined no compensation expense was required for the 2017 Stock Option Plan during the years ended December 31, 2020 and 2019 as no triggering events have occurred or were determined to be probable of occurring. The weighted average inputs used for the 2017 Stock Option Plan were as follows as of December 31, 2020: Expected volatility % Expected dividend yield — % Expected term (in years) 5 years Risk-free interest rate %

Income Taxes

Income Taxes	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Income Taxes
Income Taxes	Note 18 — Income Taxes During the three months ended March 31, 2021, the Company recorded no income tax benefits for the net operating losses incurred in the period due to its uncertainty of realizing a benefit from those items. All of the Company’s operating losses since inception have been generated in the United States. The Company has evaluated the positive and negative evidence bearing upon its ability to realize the deferred tax assets. Management has considered the Company’s history of cumulative net losses incurred since inception through March 31, 2021 and has concluded that it is more likely than not that the Company will not realize the benefits of the deferred tax assets. Management reevaluates the positive and negative evidence at each reporting period. As of March 31, 2021 and December 31, 2020, no facts or circumstances arose that affected the Company’s determination as to the full valuation allowance established against the net deferred tax assets. Accordingly, a full valuation allowance has been established against the net deferred tax assets as of March 31, 2021 and December 31, 2020.	Note 21 — Income Taxes The Company’s income tax expense consisted of the following for the years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 Current Income Tax Expense : Federal $ — $ — $ — State and local 10 11 3 Total Current Income Tax Expense 10 11 3 Deferred Income Tax Expense : Federal — — — State and local — — — Total Income Tax Expense $ 10 $ 11 $ 3 Deferred income taxes are recorded using enacted tax rates based upon differences between financial statement and tax bases of assets and liabilities. The significant components of the Company’s estimated deferred tax assets and liabilities as of December 31, 2020 and 2019 are as follows: 2020 2019 Deferred Tax Assets : Net operating losses $ 7,042 $ 5,881 Accrued expenses 109 — Unearned premiums 466 — Contract expense 332 262 Intangible assets 204 — Other 406 809 Total deferred tax assets 8,559 6,952 Less: valuation allowance (8,559) (6,910) Net Deferred Tax Assets — 42 Deferred Tax Liabilities Fixed assets — (42) Total deferred tax liabilitie s — (42) Net Deferred Tax Liabilities — (42) Net Deferred Tax Assets/Liabilities $ — $ — A valuation allowance has been established for all deferred tax assets because the Company has incurred cumulative losses in recent years and the Company has not determined that the net deferred tax assets are more likely than not to be realized. In future periods, if the Company determines it is more likely than not that the deferred tax assets will be realized, the valuation allowance may be reduced and an income tax benefit recorded. The following table presents the change in the deferred tax asset valuation allowance for the years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 January 1, $ 6,910 $ 3,986 $ 2,008 Additions – Charged 1,649 2,924 1,731 Deductions – Charged — — — Other — — 247 December 31, $ 8,559 $ 6,910 $ 3,986 As of December 31, 2020, the Company has Federal net operating loss carryforwards of approximately $29,200, of which $6,400 will expire at various dates from 2031 – 2038 and $22,800 will carryforward indefinitely but can only be used up to 80.00% of taxable income. The Company has state net operating loss carryforwards of approximately $22,100, which will expire at various dates from 2031 — 2038. Certain tax attributes of the net operating loss carryforwards may be subject to an annual limitation as a result of a change of ownership in prior years as defined under Internal Revenue Code Section 382. The differences between income tax benefit expected at the U.S. federal statutory income tax rates of 21.00% (for 2020 and 2019) and 35.00% (for 2018) and the reported income tax expense are summarized as follows: 2020 2019 2018 Loss Before Income Tax Expense $ (6,542) $ (12,667) $ (6,557) Income tax benefit at federal statutory rates (1,372) (2,660) (1,377) State and local income taxes (79) (471) (238) Investment remeasurement — — (126) Valuation allowances 1,649 2,924 1,731 Change in fair value of redeemable convertible preferred stock tranche obligation (194) 293 57 Other 6 (75) (44) Total Income Tax Expense $ 10 $ 11 $ 3 Effective Tax Rate (0.15) % (0.09) % (0.05) % Income tax returns are filed in the U.S., including multiple state jurisdictions, and are subject to examination by tax authorities in the jurisdictions where the Company operates. The Company has open tax years from 2018 to 2020. The Company has determined that it does not have any unrecognized tax benefits or obligations as of December 31, 2020 and 2019.

Net Loss Per Share Attributable

Net Loss Per Share Attributable to Common Stockholders	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Net Loss Per Share Attributable to Common Stockholders
Net Loss Per Share Attributable to Common Stockholders	Note 19 — Net Loss Per Share Attributable to Common Shareholders The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the three months ended March 31, 2021 and 2020: 2021 2020 Numerator: Net Loss $ (15,022) $ (1,507) Denominator: Weighted average common shares outstanding, basic and diluted 100,817,385 58,621,041 Net loss per share attributable to common stockholders, basic and diluted $ (0.15) $ (0.03) The following table summarizes the outstanding potentially dilutive securities that were excluded from the computation of diluted net loss per share attributable to common stockholders because the impact of including them would have been antidilutive for the three months ended March 31, 2021 and 2020: 2021 2020 Public warrants 10,185,774 — Private warrants 6,074,310 — Earnout RSUs 640,421 — Earnout shares 6,945,732 — Convertible notes payable — 2,918,556 Historic warrants — 645,167 Stock options outstanding to purchase shares of common stock 6,886,205 4,926,397 Total 30,732,442 8,490,120	Note 22 — Net Loss Per Share Attributable to Common Stockholders The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 Numerator: Net loss $ (6,552) $ (12,678) $ (6,560) Denominator: Weighted average shares outstanding, basic and diluted 58,621,042 56,737,364 50,325,203 Net loss per share attributable to common stockholders, basic and diluted $ (0.11) $ (0.22) $ (0.13) The following table summarizes the outstanding potentially dilutive securities that were excluded from the computation of diluted net loss per share attributable to common stockholders because the impact of including them would have been antidilutive for the years ended December 31, 2020, 2019, and 2018: 2020 2019 2018 Convertible notes payable 3,556,335 2,876,492 — Stock warrants 777,265 699,026 239,121 Stock options outstanding to purchase shares of common stock 5,532,863 4,416,762 4,247,318 Total 9,866,462 7,992,280 4,486,439

Concentrations

Concentrations	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Concentrations
Concentrations	Note 20 — Concentrations The supplier who accounted for 10% or more of the Company’s total purchases and its outstanding balance of accounts payable represented 62% of total purchases for the three months ended March 31, 2021 and had outstanding accounts payable of $3,448 as of March 31, 2021. The Company believes there are other suppliers that could be substituted should the supplier become unavailable or non-competitive. For the periods ended March 31, 2021 and 2020, no retail or wholesale customers accounted for more than 10% of the Company’s revenue.	Note 23 — Concentrations The suppliers who accounted for 10% or more of the Company’s total purchases and its outstanding balance of accounts payable are presented as follows: Total purchases from vendor to total purchases for the year ended December 31, Vendor 2020 2019 2018 Vendor A 33 % — % — % Vendor B 13 % 12 % — % Accounts payable to the vendor as of December 31, Vendor 2020 2019 Vendor A $ 2,918 $ — Vendor B $ 368 $ 257 The Company believes there are other suppliers that could be substituted should the supplier become unavailable or non-competitive. For the years ended December 31, 2020, 2019, and 2018, no retail or wholesale customers accounted for more than 10% of the Company’s revenue.

Subsequent Events

Subsequent Events	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Subsequent Events
Subsequent Events	Note 21 — Subsequent Events In preparing these condensed consolidated financial statements, the Company has evaluated events and transactions for potential recognition or disclosure through May 25, 2021, the date the financial statements were available to be issued. Additional Hub Locations Subsequent to the quarter ended March 31, 2021, and in accordance with the Company’s strategy to generate significant growth going forward, CarLotz expanded into one new location with a hub opening in Nashville, Tennessee. The Nashville area hub is located in Madison, Tennessee, and is CarLotz’ first location in the state of Tennessee and eleventh location overall. The Company also signed lease agreements for new hubs in Charlottesville, Virginia, Bakersfield, California, Highland Park, Illinois, Denver, Colorado, Fairview, Illinois, Baton Rouge, Louisiana, Plano, Texas and Pomona, California. The new hub opening and new lease signings align with the Company’s strategic goals, which include expanding into new geographic markets while innovating and expanding the Company’s technological leadership. Inventory Sourcing In mid-May 2021, the corporate vehicle sourcing partner that accounted for more than 60% of the cars we purchased during the three months ended March 31, 2021 informed us that it would be pausing its consignment of vehicles to us, with immediate effect, due to the current strength of the wholesale market for vehicles.	Note 24 — Subsequent Events In preparing these consolidated financial statements, the Company has evaluated events and transactions for potential recognition or disclosure through May 25, 2021, the date the financial statements were available to be issued. Acamar Partners Acquisition Corp. Merger On October 21, 2020, the Company entered into an Agreement and Plan of Merger (the “Agreement”) among the Company, Acamar Partners Acquisition Corp. (“Acamar”), an entity listed on the Nasdaq Capital Market (“Nasdaq”) under the trading symbol ACAM, Acamar Partners Sub, Inc., a Delaware corporation and direct wholly owned subsidiary of Acamar (“Merger Sub”), providing for, among other things, and subject to the conditions therein, the combination of the Company and Acamar pursuant to the proposed merger of Merger Sub with and into the Company with the Company continuing as the surviving entity (the “Merger”). As a result of the Merger, each outstanding share of the Company’s common stock was converted into the right to receive newly issued shares of Acamar’s Class A common stock, as calculated pursuant to the terms of the Agreement. The business combination was accounted for as a reverse capitalization with CarLotz as the continuing company, and was consummated on January 21, 2021, after the approval of Acamar Partners' stockholders. Beginning January 22, 2021, new CarLotz' shares began trading on the Nasdaq Global Market under the ticker symbol "LOTZ." The business combination was funded with a combination of Acamar Partners' $311 million cash-in-trust and $125 million of Private Investment in Public Equity proceeds. As a result of the business combination, CarLotz received approximately $315 million of net cash in the business combination. Concurrently, CarLotz settled its debt obligations, excluding the floor plan facility and capital lease obligation. The Company extinguished the convertible notes with a principal balance of $3,500, the PPP loan with a principal balance of $1,749 and the promissory note with a principal balance of $3,000. The Company also settled its stock warrants liability, redeemable convertible preferred stock and redeemable convertible preferred stock tranche obligation with carrying values of $144, $17,560 and $2,832, respectively, as of December 31, 2020. In addition, beginning March 10, 2021, the Company entered into a $30 million floor plan credit facility with Ally Financial. Concurrently, proceeds from the agreement were used to settle outstanding debt obligations on the preexisting floor plan facility with AFC. The interest rate is the prime rate plus 2.50% per annum, or 5.75% as of the date of the agreement. Additional Hub Locations Subsequent to the year ended December 31, 2020 and in accordance with the Company's strategy to generate significant growth going forward, CarLotz expanded into three new locations with hub openings in Seattle, Washington, Orlando, Florida and Nashville, Tennessee. The Seattle-area hub located in Lynnwood, Washington, is CarLotz' first location on the west coast and ninth location overall. The Orlando-area hub is located in Merritt Island, Florida and is CarLotz' second location in the state of Florida and tenth location overall. The Nashville area hub is located in Madison, Tennessee and is CarLotz' first location in the state of Tennessee and eleventh location overall. The Company also signed lease agreements for new hubs in Charlottesville, Virginia, Bakersfield, California, Highland Park, Illinois, Denver, Colorado, Fairview, Illinois, Baton Rouge, Louisiana, Plano, Texas and Pomona, California. The new hub opening and new lease signings align with the Company's strategic goals, which include expanding into new geographic markets while innovating and expanding the Company's technological leadership. Inventory Sourcing In mid-May 2021, the corporate vehicle sourcing partner that accounted for approximately 33% of the cars we purchased during 2020 informed us that it would be pausing its consignment of vehicles to us, with immediate effect, due to the current strength of the wholesale market for vehicles.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Summary of Significant Accounting Policies
Basis of Presentation		Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”).
Principles of Consolidation		Principles of Consolidation The consolidated financial statements include the accounts of CarLotz, Inc. (now known as CarLotz Group, Inc.) and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Following the closing of the Merger, Former CarLotz equity holders at the effective time of the Merger will have the contingent right to receive, in the aggregate, up to 7,500,000 shares of common stock if, from the closing of the Merger until the fifth anniversary thereof, the reported closing trading price of the common stock exceeds certain thresholds. Estimating the change in fair value of the earnout liability for the earnout shares that could be earned Former CarLotz equity holders at the effective time of the Merger requires determining both the fair value valuation model to use and inputs to the valuation model. The fair value of the earnout shares was estimated by utilizing a Monte-Carlo simulation model, which is a commonly used valuation model for this type of transaction. Inputs that have a significant effect on the earnout shares valuation include the expected volatility, starting stock price, expected term, risk-free interest rate and the earnout hurdles. See Note 6 — Fair Value of Financial Instruments. Warrants that were issued by Acamar Partners (Merger warrants) and continue to exist following the closing of the Merger are accounted for as freestanding financial instruments. These warrants are classified as liabilities on the Company’s condensed consolidated balance sheets and are recorded at their estimated fair value. The estimated fair value of the warrants is determined by using the market value in an active trading market. Beginning in the first quarter of 2020, the World Health Organization declared the outbreak and spread of the COVID-19 virus a pandemic. The outbreak is disrupting supply chains and impacting production and sales across a wide range of industries. The full economic impact of this pandemic has not been determined, including the impact on the Company’s suppliers, customers and credit markets. Due to the evolving and uncertain nature of COVID-19, it is reasonably possible that it could materially impact the Company’s estimates, particularly those noted above that require consideration of forecasted financial information, in the near to medium term. The ultimate impact will depend on numerous evolving factors that the Company may not be able to accurately predict, including the duration and extent of the pandemic, the impact of federal, state, local and foreign governmental actions, consumer behavior in response to the pandemic and other economic and operational conditions the Company may face.	Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Estimating the change in fair value of the liability for stock warrants requires determining both the fair value valuation model to use and inputs to the valuation model. The stock warrants liability is valued using the Black Scholes pricing model, which is a commonly used valuation model for this type of financial instrument. Inputs that have a significant effect on the stock warrants liability valuation include the expected life of the stock warrants, the fair value per share of the Company’s common stock, volatility of the Company’s common stock fair value and related dividend yield. See Note 6 — Fair Value of Financial Instruments and Note 12 — Long-term Debt for additional detail. The fair value of the obligation to purchase future tranches of Series A Redeemable Convertible Preferred Stock (“Series A Preferred Stock”) was estimated by utilizing the Black Scholes pricing model and included the impact of the lack of marketability of the instruments. The key inputs for the fair value measurement include the fair value per share of the Company’s Series A Preferred Stock, expected volatility, the remaining years to liquidity and the risk-free interest rate. The most significant input impacting the fair value of the Series A Preferred Stock tranche obligation is the fair value of the Series A Preferred Stock as of each remeasurement date. The determination of the fair value per share of the redeemable convertible preferred stock is estimated by taking into consideration the most recent sales of redeemable convertible preferred stock, results obtained from third-party valuations and additional factors that are deemed relevant. As a private company, there was a lack of Company-specific historical and implied volatility information of the Company’s Series A Preferred Stock. Therefore, estimates of expected stock volatility are based on the historical volatility of publicly traded peer companies for a term equal to the remaining contractual term of the obligations. The risk-free interest rate was determined by reference to the U.S. Treasury yield curve for time periods approximately equal to the remaining years to liquidity. See Note 6 — Fair Value of Financial Instruments and Note 19 — Redeemable Convertible Preferred Stock for additional detail. Beginning in the first quarter of 2020, the World Health Organization declared the outbreak and spread of the COVID-19 virus a pandemic. The outbreak is disrupting supply chains and impacting production and sales across a wide range of industries. The full economic impact of this pandemic has not been determined, including the impact on the Company's suppliers, customers, and credit markets. Due to the evolving and uncertain nature of COVID-19, it is reasonably possible that it could materially impact the Company's estimates, particularly those noted above that require consideration of forecasted financial information, in the near to medium term. The ultimate impact will depend on numerous evolving factors that the Company may not be able to accurately predict, including the duration and extent of the pandemic, the impact of federal, state, local, and foreign governmental actions, consumer behavior in response to the pandemic and other economic and operational conditions the Company may face.
Cash and Cash Equivalents		Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments that are due on demand or have a remaining maturity of three months or less at the date of purchase. The Company places its cash with financial institutions and has balances that generally exceed federally insured amounts.
Restricted Cash	Restricted Cash As of March 31, 2021 and December 31, 2020, restricted cash included approximately $227 and $605, respectively. The restricted cash is legally and contractually restricted as collateral for two letters of credit issued on behalf of CarLotz Group, Inc. and of the reinsurance companies for the payment of claims.	Restricted Cash As of December 31, 2020 and 2019, restricted cash was approximately $605 and $888, respectively. The restricted cash is legally and contractually restricted as collateral for two letters of credit issued on behalf of the Company and of the reinsurance subsidiaries for the payment of claims.
Marketable Securities	Marketable Securities The Company and its reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of fixed income debt securities. The Company has investments in marketable securities that are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in other income (expense) in the Company’s condensed consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of debt securities are recognized in Accumulated Other Comprehensive Income in the Company’s condensed consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company’s net income only when such securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security’s cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company’s marketable securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issue and the Company’s intent to sell, or whether it is more likely than not the Company will be required to sell the investment before recovery of the investment’s amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these securities, the Company will write down these investments to fair value through earnings.	Marketable Securities The Company's reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of equity and fixed income debt securities. The Company's investments in marketable securities are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in other income (expense) in the Company's consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of available-for-sale debt securities are recognized in Accumulated Other Comprehensive Income in the Company's consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company's net income only when such debt securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security's cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company's marketable debt securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its fixed maturity debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issuer and the Company's intent to sell, or whether it is more likely than not the Company will be required to sell the debt security before recovery of the investment's amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these debt securities, the Company will write down these debt securities to fair value through earnings.
Accounts Receivable, Net		Accounts Receivable, Net Accounts receivable consist primarily of contracts in transit that represent amounts due from financial institutions on retail installment contracts from retail vehicle sales, and also includes receivables related to wholesale vehicle sales.
Concentration of Credit Risk	Concentration of Credit Risk Concentrations of credit risk with respect to accounts receivables are limited due to the large diversity and number of customers comprising the Company’s customer base.	Concentration of Credit Risk Concentrations of credit risk with respect to accounts receivables are limited due to the large diversity and number of customers comprising the Company’s customer base.
Inventories		Inventories All inventories, which are comprised of vehicles and parts held for sale, are reported at the lower of cost or net realizable value. Cost of vehicle inventory is determined on a specific identification basis. Vehicles held on consignment are not recorded in the Company’s inventory balance, as title to those vehicles, and, therefore control of the vehicle, remain with the consignors until a customer purchases the vehicle and the vehicle is delivered.
Property and Equipment		Property and Equipment Property and equipment are stated at cost. Expenditures for maintenance, repairs and minor renewals are charged to expense as incurred. Major renewals and betterments are capitalized. Property held under capital leases are stated at the present value of minimum lease payments less accumulated amortization. Property held under capital leases are amortized using the straight-line method over the shorter of the lease term or estimated useful life of the asset. Depreciation on owned property and equipment is calculated using the straight-line method over the estimated useful lives of the assets as follows: Leasehold Improvements Lesser of 15 years or underlying lease terms Equipment, Furniture and Fixtures 1 — 5 years Corporate Vehicles 5 years
Lease Vehicles, net		Lease Vehicles, net The Company leases vehicles to customers with lease terms that are typically 1 – 4 years. The leases are accounted for as operating leases. Lease income is recorded on a straight line basis over the period the vehicle is rented. Depreciation on the lease vehicles is calculated using the straight-line method over the estimated useful life.
Reinsurance - Deferred Acquisition Costs		Reinsurance — Deferred Acquisition Costs The Company defers certain costs of acquiring new contracts. These costs are limited to incremental direct costs that result from the successful acquisition of new contracts and would not have been incurred, had the acquisition of the contract not occurred. Deferred acquisition costs (“DAC”) consist primarily of amounts paid for ceding fees and premium taxes and are amortized over the term of the contracts in relation to premiums earned. Acquisition costs that do not result in the successful acquisition of new contracts, or that would have been incurred even if a new contract was not acquired, are expensed as incurred. DAC are included in other assets on the consolidated balance sheets.
Floor Plan Notes Payable		Floor Plan Notes Payable The Company classifies notes payable for inventory purchased as “Floor plan notes payable” on the accompanying consolidated balance sheets. The Company presents borrowings and repayments on Floor plan notes payable within Cash flows from financing activities on the consolidated statements of cash flows because the Company uses a third-party lender for its floor plan financing arrangement.
Classification and Accretion of Redeemable Convertible Preferred Stock		Classification and Accretion of Redeemable Convertible Preferred Stock The Company has previously classified its Series A Preferred Stock outside of stockholders’ equity (deficit) because the shares contained certain redemption features that were not solely within the control of the Company. Costs incurred in connection with the issuance of Series A Preferred Stock, as well as the recognition of the redeemable convertible preferred stock tranche obligation, are recorded as a reduction of gross proceeds from issuance. The Series A Preferred Stock was not redeemable as of the periods of these financial statements because while the holders of the Series A Preferred Stock had the power to direct the Company’s actions through its control of the Company’s board of directors, the deemed liquidation provision is considered a substantive condition that was contingent on the identification of a market participant willing to purchase the Company’s assets for consideration in an amount sufficient to distribute the redemption amount to the holders of the Series A Preferred Stock. Since the Series A Preferred Stock was not currently redeemable and it was not currently probable that it would become redeemable because a change of control feature is not considered probable until the change of control actually occurs, the net carrying value of Series A Preferred Stock was not accreted to its redemption value. See Note 19 — Redeemable Convertible Preferred Stock for additional details. See Note 3 — Reverse Recapitalization for the impact of the reverse recapitalization on the redeemable convertible preferred stock.
Reinsurance - Contract Reserves		Reinsurance — Contract Reserves The Company sells certain finance and insurance contracts that are underwritten by third parties. The Company, through its reinsurance subsidiaries, reinsures those contracts, thereby assuming the risk of loss on the underlying insurance contracts. The Company establishes insurance reserves in accordance with ASC 944, Financial Services — Insurance . These amounts are recorded as Other liabilities on the consolidated balance sheets.
Contract Reserves		Contract Reserves Subsequent to the sale of a vehicle to a customer, the Company sells the related retail installment contracts to financial institutions on a non-recourse basis. The Company receives commissions from the financial institutions for these sales. The Company also receives commissions from other third-party providers for the arrangement of the sale of other products such as guaranteed vehicle protection insurance. The Company is subject to future chargebacks in the event of an early contract termination or payoff by customers. A reserve for future amounts estimated to be charged back is recorded as a reduction of Finance and insurance, net in the consolidated statements of operations, at the time of sale. The chargeback reserve is estimated based on the Company’s historical chargeback results and is recorded in Other liabilities on the consolidated balance sheets.
Legal Contingencies		Legal Contingencies The Company is involved in various claims and legal proceedings that arise in the normal course of business. The Company records an accrual for legal contingencies when it determines that it is probable that it has incurred a liability and it can reasonably estimate the amount of the loss. See Note 18 — Commitments and Contingencies for additional details.
Fair Value Measurements		Fair Value Measurements Fair value as defined under U.S. GAAP is an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. U.S. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1: Observable inputs such as quoted prices in active markets. Level 2: Inputs other than quoted prices in active markets that are either directly or indirectly observable. Level 3: Unobservable inputs about which little or no market data exists, therefore requiring an entity to develop its own assumptions. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and affects how the measurement is classified within the fair value hierarchy levels. See Note 6 — Fair Value of Financial Instruments for additional information.
Revenues		Revenues The Company recognizes revenue upon transfer of control of goods or services to customers, in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. Control passes to the retail and wholesale vehicle sales customer when the title is delivered to the customer, who then assumes control of the vehicle.
Cost of Sales		Cost of Sales Cost of sales includes the cost to acquire used vehicles and the related reconditioning costs to prepare the vehicles for resale. Vehicle reconditioning costs include parts, labor, inbound transportation costs, and other costs such as mechanical inspection, vehicle preparation supplies and repair costs. Cost of sales also includes any necessary adjustments to reflect vehicle inventory at the lower of cost or net realizable value.
Sales Tax		Sales Tax The Company collects and remits sales tax on vehicle sales and sales of parts. Sales tax collected is not included in revenues and remittances are not included in cost of sales. Sales tax collected is recorded as a liability, with the liability relieved upon remittance of payments to tax authorities.
Selling, General, and Administrative Expenses		Selling, General, and Administrative Expenses Selling, general and administrative expenses primarily include compensation and benefits, advertising, facilities cost, technology expenses, logistics, and other administrative expenses. Advertising costs are expensed as incurred and were $3,199, $3,803, and $1,871 for the years ended December 31, 2020, 2019, and 2018, respectively.
Equity-Based Compensation		Equity-Based Compensation The Company classifies equity-based awards granted in exchange for services as either equity awards or liability awards. The classification of an award as either an equity award or a liability award is generally based upon cash settlement options. Both equity and liability awards are measured based on the fair value of the award at the grant date, however, liability awards are then re-measured to fair value each reporting period. The Company recognizes equity-based compensation on a straight-line basis over the award’s requisite service period, which is generally the vesting period of the award, less actual forfeitures. For equity and liability awards earned based on performance or upon occurrence of a contingent event, when and if the awards will be earned is estimated. If an award is not considered probable of being earned, no amount of equity-based compensation is recognized. If the award is deemed probable of being earned, related equity-based compensation is recorded over the estimated service period. To the extent the estimate of awards considered probable of being earned changes, the amount of equity-based compensation recognized will also change. See Note 20 — Stock-Based Compensation Plan for additional information on equity-based compensation.
Redeemable Convertible Preferred Stock Tranche Obligation		Redeemable Convertible Preferred Stock Tranche Obligation The Company classified the Series A Preferred Stock tranche obligations for the future purchase, and option to purchase, three additional tranches of Series A Preferred Stock (See Note 6 — Fair Value of Financial Instruments and Note 19 — Redeemable Convertible Preferred Stock for additional detail) as a liability on its consolidated balance sheets as the Series A Preferred Stock tranche obligations were freestanding financial instruments that required the Company to transfer equity instruments upon future closings of the Series A Preferred Stock. The Series A Preferred Stock tranche obligations were initially recorded at fair value upon the date of issuance and were subsequently remeasured to fair value at each reporting date. Changes in the fair value of the Series A Preferred Stock tranche obligation were recognized as a component of Other Income (Expense), net in the consolidated statements of operations. Changes in the fair value of the second Series A Preferred Stock tranche obligations were recognized until the tranche obligations were fulfilled in the first and second quarter of 2019.
Income Tax		Income Tax Income taxes are provided for the tax effects of transactions reported in the consolidated financial statements and consist of taxes currently due plus deferred taxes. Deferred taxes are recognized for differences between the basis of assets and liabilities for financial statement and income tax purposes. The differences relate primarily to depreciable assets (use of different depreciation methods and lives for financial statement and income tax purposes), contract expenses, and certain accrued expenses. Deferred tax assets and liabilities represent future tax consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred income taxes are recorded using enacted tax rates based upon differences between financial statement and tax bases of assets and liabilities. A valuation allowance has been established for all deferred tax assets because the Company has incurred cumulative losses in recent years and the Company has not determined that the net deferred tax assets are more likely than not to be realized. In future periods, if the Company determines it is more likely than not that the deferred tax assets will be realized, the valuation allowance may be reduced, and an income tax benefit recorded.
Net Loss Per Share Attributable to Common Stockholders		Net Loss Per Share Attributable to Common Stockholders Prior to the impact of the retroactive application of the recapitalization, the Company’s redeemable convertible preference shares were participating securities as the holders of the Company’s redeemable convertible preference shares are entitled to participate in dividends with ordinary shares. Net losses were not allocated to the Company’s redeemable convertible preference shares as the holders of the Company’s redeemable convertible preference shares do not have a contractual obligation to share in any losses. Subsequent to the retroactive application of the recapitalization, basic and diluted net loss per share attributable to ordinary shareholders is calculated by dividing net loss attributable to Company’s ordinary shareholders by the weighted-average number of recapitalized ordinary shares outstanding for the period. Diluted earnings per share attributable to common stockholders adjusts basic earnings per share for all potentially dilutive common stock equivalents outstanding during the period. Potentially dilutive securities consisted of stock options, warrants, and convertible notes payable. Since the Company has reported net losses for all periods presented, the Company has excluded all potentially dilutive securities from the calculation of the diluted net loss per share attributable to common stockholders as their effect is antidilutive and accordingly, basic and diluted net loss per share attributable to common stockholders is the same for all periods presented. (See Note 22 — Net Loss Per Share Attributable to Common Stockholders for additional detail)
Segments		Segments The Company’s chief operating decision maker (“CODM”) is its chief executive officer. The Company derives its revenue primarily from sales of automobiles via retail and wholesale channels. The CODM reviews financial information presented on a consolidated basis for the purposes of allocating resources and evaluating financial performance. Accordingly, the Company determined that it has one reportable segment.
Adoption of New Accounting Pronouncements	Recently Issued Accounting Pronouncements In January 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . Subsequently, the FASB issued ASU 2018-03, Technical Corrections and Improvements to Financial Instruments-Overall. ASU 2016-01 requires equity investments except those under the equity method of accounting to be measured at fair value with the changes in fair value recognized in net income. ASU 2016-01 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2018, and interim periods within annual periods beginning after December 15, 2019. The Company adopted ASU 2016-01 on January 1, 2019 for annual periods and on January 1, 2020 for interim periods within annual periods. The adoption of ASU 2016-01 did not have a material impact on the Company’s condensed consolidated financial statements because the Company did not make its first investment in securities impacted by the standard until the first quarter of the year ending December 31, 2021. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The standard will affect all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases, to clarify how to apply certain aspects of the new leases standard. ASU 2016-02, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, and early adoption is permitted. For leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, lessees and lessors must apply a modified retrospective transition approach. While the Company expects the adoption of this standard to result in an increase to the reported assets and liabilities, it has not yet determined the full impact the adoption of this standard will have on its financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. ASU 2016-13, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates for fiscal years beginning after December 15, 2022 and for interim periods within those fiscal years. The Company is currently evaluating the impact of this standard to its financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement ( Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. The Company adopted ASU 2018-13 on January 1, 2020 and the adoption of this standard did not have a material impact on the condensed consolidated financial statements or related disclosures. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other- Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company adopted ASU 2018-15 on January 1, 2020 for annual periods, and the adoption of this standard did not have a material impact on the condensed consolidated financial statements or related disclosures. In October 2018, the FASB issued ASU 2018-17, Consolidation (Topic 810), Targeted Improvements to Related Party Guidance for Variable Interest Entities , which addresses the cost and complexity of financial reporting associated with consolidation of variable interest entities (“VIE”). The new guidance must be applied on a retrospective basis as a cumulative-effect adjustment as of the date of adoption. The Company adopted ASU 2018-17 on January 1, 2020, and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures because the Company does not currently have any indirect interests through related parties under common control for which it receives decision making fees. In December 2020, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which is intended to simplify various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019-12 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the impact of this standard on its financial statements.	Adoption of New Accounting Pronouncements In August 2018, the FASB issued ASU 2018‑13, Fair Value Measurement (Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement , which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. ASU 2018‑13 is effective for all entities for fiscal years beginning after December 15, 2019 and for interim periods within those fiscal years , and early adoption is permitted. An entity is permitted to early adopt either the entire standard or only the provisions that eliminate or modify requirements. The Company adopted ASU 2018-13 on January 1, 2020 and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures. In August 2018, the FASB issued ASU 2018‑15, Intangibles — Goodwill and Other — Internal — Use Software (Subtopic 350‑40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract . This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. ASU 2018‑15 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2019, and interim periods within annual periods beginning after December 15, 2020, with early adoption permitted. The Company adopted ASU 2018-15 on January 1, 2020 for annual periods and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures. In October 2018, the FASB issued ASU 2018‑17, Consolidation (Topic 810), Targeted Improvements to Related Party Guidance for Variable Interest Entities , which addresses the cost and complexity of financial reporting associated with consolidation of variable interest entities (“VIE”). ASU 2018‑17 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2019, and interim periods within annual periods beginning after December 15, 2020, with early adoption permitted. The new guidance must be applied on a retrospective basis as a cumulative-effect adjustment as of the date of adoption. The Company adopted ASU-2018-17 on January 1, 2020 and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures because the Company does not currently have any indirect interests through related parties under common control for which it receives decision making fees. Recently Issued Accounting Pronouncements Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The standard will affect all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases, to clarify how to apply certain aspects of the new leases standard. ASU 2016-02, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, and early adoption is permitted. For leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, lessees and lessors must apply a modified retrospective transition approach. While the Company expects the adoption of this standard to result in an increase to the reported assets and liabilities, it has not yet determined the full impact the adoption of this standard will have on its financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. ASU 2016-13, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates for fiscal years beginning after December 15, 2022 and for interim periods within those fiscal years. The Company is currently evaluating the impact of this standard to the consolidated financial statements. In December 2019, the FASB issued ASU 2019‑12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which is intended to simplify various aspects related to accounting for income taxes. ASU 2019‑12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019‑12 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the impact of this standard to the consolidated financial statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Summary of Significant Accounting Policies
Schedule of estimated useful lives of the assets	Leasehold Improvements Lesser of 15 years or underlying lease terms Equipment, Furniture and Fixtures 1 — 5 years Corporate Vehicles 5 years

Reverse Recapitalization (Table

Reverse Recapitalization (Tables)	12 Months Ended
	Dec. 31, 2020
Reverse Recapitalization
Schedule of recapitalization to consolidated statements of stockholders' equity	Date Description As Previously Reported 1/21/21 Conversion Ratio Recapitalized Common Shares 1/1/2018 Common Stock 1/1/2018 Treasury Stock 1/1/2018 Preferred Stock 1/22/2019 Preferred Stock 5/1/2019 Preferred Stock
Schedule of recapitalization to consolidated statements of operations	Date Recapitalized Common Stock Days outstanding % of weighting Weighted Average Outstanding Shares 1/1/2018 % 12/31/2018 % 1/1/2019 % 1/22/2019 % 5/1/2019 % 12/31/2019 % 1/1/2020 % 12/31/2020 %

Revenue Recognition (Tables)

Revenue Recognition (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Revenue Recognition
Schedule of disaggregated revenue under ASC 606	Three Months Ended March 31, 2021 Fleet Vehicle Sales Management Total Retail vehicle sales $ 50,383 $ — $ 50,383 Wholesale vehicle sales 4,568 — 4,568 Finance and insurance, net 1,554 — 1,554 Lease income, net — 107 107 Total Revenues $ 56,505 $ 107 $ 56,612 Three Months Ended March 31, 2020 Fleet Vehicle Sales Management Total Retail vehicle sales $ 21,042 $ — $ 21,042 Wholesale vehicle sales 3,311 — 3,311 Finance and insurance, net 892 — 892 Lease income, net — 145 145 Total Revenues $ 25,245 $ 145 $ 25,390	2020 Fleet Vehicle Sales Management Total Retail vehicle sales $ 104,253 $ — $ 104,253 Wholesale vehicle sales 9,984 — 9,984 Finance and insurance, net 3,898 — 3,898 Lease income, net — 490 490 Total Revenues $ 118,135 $ 490 $ 118,625 2019 Fleet Vehicle Sales Management Total Retail vehicle sales $ 90,382 $ — $ 90,382 Wholesale vehicle sales 8,454 — 8,454 Finance and insurance, net 3,117 — 3,117 Lease income, net — 533 533 Total Revenues $ 101,953 $ 533 $ 102,486 2018 Fleet Vehicle Sales Management Total Retail vehicle sales $ 53,448 $ — $ 53,448 Wholesale vehicle sales 3,153 — 3,153 Finance and insurance, net 1,608 — 1,608 Lease income, net — 142 142 Total Revenues $ 58,209 $ 142 $ 58,351
Schedule of revenues and cost of sales for retail and wholesale vehicle sales	The following table summarizes revenues and cost of sales for retail and wholesale vehicle sales for the three months ended March 31, 2021 and 2020: 2021 2020 Retail vehicles: Retail vehicle sales $ 50,383 $ 21,042 Retail vehicle cost of sales 48,917 19,555 Gross Profit – Retail Vehicles $ 1,466 $ 1,487 Wholesale vehicles: Wholesale vehicle sales $ 4,568 $ 3,311 Wholesale vehicle cost of sales 5,687 3,363 Gross Profit – Wholesale Vehicles $ (1,119) $ (52)	2020 2019 2018 Retail vehicles: Retail vehicle sales $ 104,253 $ 90,382 $ 53,448 Retail vehicle cost of sales 96,983 84,534 48,523 Gross Profit – Retail Vehicles $ 7,270 $ 5,848 $ 4,925 Wholesale vehicles: Wholesale vehicle sales $ 9,984 $ 8,454 $ 3,153 Wholesale vehicle cost of sales 10,386 9,246 4,185 Gross Profit – Wholesale Vehicles $ (402) $ (792) $ (1,032)

Marketable Securities (Tables)

Marketable Securities (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Marketable Securities
Summary of amortized cost, gross unrealized gains and losses, and estimated fair values of the Company's investments in fixed maturity debt securities	March 31, 2021 Amortized Gross Gross Cost/ Unrealized Unrealized Cost Basis Gains Losses Fair Value U.S. Treasuries $ 181 $ 2 $ — $ 183 Corporate bonds 63,197 2 (111) 63,088 Municipal bonds 24,003 5 (14) 23,994 Commercial paper 130,659 — — 130,659 Total Fixed Maturity Debt Securities $ 218,040 $ 9 $ (125) $ 217,924 December 31, 2020 Amortized Gross Gross Cost/ Unrealized Unrealized Cost Basis Gains Losses Fair Value U.S. Treasuries $ 240 $ 6 $ — $ 246 Corporate bonds 261 5 (1) 265 U.S. states, territories and political subdivisions 141 5 — 146 Total Fixed Maturity Debt Securities $ 642 $ 16 $ (1) $ 657	​ Amortized Gross Gross Estimated Cost Unrealized Gains Unrealized Losses Fair Value Fixed Maturity Debt Securities ​ U.S. Treasuries $ 240 $ 6 $ — $ 246 Corporates 261 5 (1) 265 U.S. states, territories, and political subdivisions 141 5 — 146 Total Fixed Maturity Debt Securities $ 642 $ 16 $ (1) $ 657
Summary of amortized cost and estimated fair value of the Company's fixed maturity debt securities	The amortized cost and fair value of the Company’s fixed maturity debt securities as of March 31, 2021 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Cost Fair Value Due in one year or less $ 173,174 $ 173,145 Due after one year through five years 44,540 44,457 Due after five years through ten years 326 322 Total $ 218,040 $ 217,924	Amortized Estimated ​ Cost Fair Value Due in one year or less $ 77 $ 78 Due after one year through five years 379 388 Due after five years through ten years 186 191 Total $ 642 $ 657
Summary of gross unrealized losses in fixed maturity debt securities	March 31, 2021 Less Than 12 Months 12 Months or More Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Fair Value Losses Fair Value Losses Fair Value Losses Corporate bonds $ 23,226 $ (31) $ 39,736 $ (80) $ 62,962 $ (111) Municipal bonds 18,286 (11) 1,135 (3) 19,421 (14) Total Fixed Maturity Debt Securities $ 41,512 $ (42) $ 40,871 $ (83) $ 82,533 $ (125) December 31, 2020 Less Than 12 Months 12 Months or More Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Fair Value Losses Fair Value Losses Fair Value Losses Corporate bonds $ 39 $ (1) $ — $ — $ 39 $ (1) Total Fixed Maturity Debt Securities $ 39 $ (1) $ — $ — $ 39 $ (1)	Less Than 12 Months 12 Months or more Total Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Fixed maturity debt securities: Corporate Bonds $ 39 $ (1) $ — $ — $ 39 $ (1) Total Fixed Maturity Debt Securities $ 39 $ (1) $ — $ — $ 39 $ (1)
Summary of cost and estimated fair values of the Company's investments in equity securities	March 31, 2021 Estimated Cost Fair Value Equity securities $ 433 $ 500 December 31, 2020 Estimated Cost Fair Value Equity securities $ 335 $ 375	Estimated ​ Cost Fair Value Equity securities $ 335 $ 375
Summary of proceeds from sales and maturities, gross realized gains, gross realized losses, and net realized gains (losses) from sales and maturities of fixed maturity debt securities	March 31, 2021 Gross Gross Net Realized Realized Realized Proceeds Gains Losses Losses Fixed maturity debt securities $ 59 $ — $ — $ — Equity securities — — — — Total Marketable Securities $ 59 $ — $ — $ — March 31, 2020 Gross Gross Net Realized Realized Realized Proceeds Gains Losses Losses Fixed maturity debt securities $ 18 $ — $ (3) $ (3) Equity securities — — — — Total Marketable Securities $ 18 $ 1 $ (3) $ (3)	Gross Gross Net ​ Proceeds Realized Gains Realized Losses Realized (Losses) Fixed maturity debt securities $ 18 $ — $ — $ — Equity securities 50 1 (2) (1) Total Marketable Securities $ 68 $ 1 $ (2) $ (1)

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Fair Value of Financial Instruments
Schedule of Company's assets and liabilities that are measured at fair value on a recurring basis	March 31, 2021 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 37,449 $ — $ — $ 37,449 Equity securities 500 — — 500 Fixed maturity debt securities, including cash equivalents — 233,193 233,193 Total Assets: $ 37,949 $ 233,193 $ — $ 271,142 Liabilities: Merger warrant liability 16,705 9,962 — 26,667 Earnout shares — — 42,438 42,438 Total Liabilities: $ 16,705 $ 9,962 $ 42,438 $ 69,105 December 31, 2020 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 405 $ — $ — $ 405 Equity securities 375 — — 375 Fixed maturity debt securities 246 411 — 657 Total Assets: $ 1,026 $ 411 $ — $ 1,437 Liabilities: Redeemable convertible preferred stock tranche obligation $ — $ — $ 2,832 $ 2,832 Historic warrants liability — — 144 144 Total Liabilities: $ — $ — $ 2,976 $ 2,976	2020 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 405 $ — $ — $ 405 Equity securities 375 — — 375 Fixed maturity debt securities 246 411 — 657 Total Assets: 1,026 411 — 1,437 Liabilities: Redeemable convertible preferred stock tranche obligation — — 2,832 2,832 Stock warrants liability — — 144 144 Total Liabilities: $ — $ — $ 2,976 $ 2,976 2019 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 688 $ — $ — $ 688 Liabilities: Redeemable convertible preferred stock tranche obligation — — 3,755 3,755 Stock warrants liability — — 115 115 Total Liabilities: $ — $ — $ 3,870 $ 3,870
Schedule of significant inputs for Level 3 fair value measurement	January 1, Change in March 31, 2021 Issuances Settlements fair value 2021 Redeemable convertible preferred stock tranche obligation $ 2,832 $ — $ (2,832) $ — $ — Historic warrants liability 144 — (144) — — Earnout shares — 74,284 — (31,846) 42,438 Total $ 2,976 $ 74,284 $ (2,976) $ (31,846) $ 42,438 January 1, Change in March 31, 2020 Issuances Settlements fair value 2020 Redeemable convertible preferred stock tranche obligation $ 3,755 $ — $ — $ (284) $ 3,471 Historic warrants liability 115 — — (13) 102 Total $ 3,870 $ — $ — $ (297) $ 3,573	Change in Year-ended December 31, 2020 January 1, Issuances Settlements Fair Value December 31, Redeemable convertible preferred stock tranche obligation $ 3,755 $ — $ — $ (923) $ 2,832 Stock warrants liability 115 15 — 14 144 Total $ 3,870 $ 15 $ — $ (909) $ 2,976 Change in Year-ended December 31, 2019 January 1, Issuances Settlements Fair Value December 31, Redeemable convertible preferred stock tranche obligation $ 3,261 $ — $ (902) $ 1,396 $ 3,755 Stock warrants liability 67 72 — (24) 115 Total $ 3,328 $ 72 $ (902) $ 1,372 $ 3,870
Schedule of reconciliation of liabilities measured at fair value using significant unobservable inputs	March 31, 2021 January 21, 2021 Expected volatility 80.00 % 80.00 % Starting stock price $ 7.13 $ 11.31 Expected term (in years) 4.7 years 5 years Risk-free interest rate 0.87 % 0.45 % Earnout hurdle $ 12.50–$15.00 $ 12.50–$15.00	2020 2019 Expected volatility % % Expected dividend yield 0.00 % 0.00 % Expected term (in years) 4 years 5 years Risk-free interest rate % % Marketability discount % %

Accounts Receivable, Net (Table

Accounts Receivable, Net (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accounts Receivable, Net
Schedule of accounts receivables	​ March 31, December 31, 2021 2020 Contracts in transit $ 8,521 $ 3,321 Trade 243 240 Finance commission 329 132 Other 298 506 Total 9,391 4,199 Allowance for doubtful accounts (67) (67) Total Accounts Receivable, net $ 9,324 $ 4,132	2020 2019 Contracts in transit $ 3,321 $ 2,645 Trade 240 202 Finance commission 132 87 Other 506 349 Total 4,199 3,283 Allowance for doubtful accounts (67) (27) Total Accounts Receivable, net $ 4,132 $ 3,256

Inventory and Floor Plan Note_2

Inventory and Floor Plan Notes Payable (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Inventory and Floor Plan Notes Payable
Inventory and Floor Plan Notes Payable	​ March 31, December 31, 2021 2020 Used vehicles $ 9,274 $ 11,202 Parts 37 — Total $ 9,311 $ 11,202	2020 2019 Used vehicles $ 11,202 $ 7,592 Parts — 33 Total $ 11,202 $ 7,625

Property and Equipment, Net (Ta

Property and Equipment, Net (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Property and Equipment, Net
Schedule of property and equipment	March 31, December 31, 2021 2020 Capital lease asset building $ 1,305 $ 1,305 Leasehold improvements 887 702 Furniture, fixtures and equipment 1,161 760 Corporate vehicles 143 143 Total property and equipment 3,496 2,910 Less: accumulated depreciation (1,147) (1,042) Property and Equipment, net $ 2,349 $ 1,868	2020 2019 Capital lease asset building $ 1,305 $ — Leasehold improvements 702 688 Furniture, fixtures, and equipment 760 715 Corporate vehicles 143 104 Total property and equipment 2,910 1,507 Less: accumulated depreciation (1,042) (876) Property and Equipment, net $ 1,868 $ 631

Lease Vehicles, Net (Tables)

Lease Vehicles, Net (Tables)	12 Months Ended
	Dec. 31, 2020
Lease Vehicles, Net
Schedule of Lease vehicles, net	2020 2019 Vehicles $ 629 $ 1,083 Less: accumulated depreciation (456) (639) Total Lease Vehicles, net $ 173 $ 444
Schedule of rental payments due to the Company on leases of owned vehicles under noncancelable operating leases	Minimum Rental Receipts Year Under Operating Leases 2021 $ 37 2022 24 2023 2 Total $ 63

Other Assets (Tables)

Other Assets (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Assets
Schedule of other assets	March 31, December 31, 2021 2020 Other Current Assets: Lease receivable, net $ 22 $ 36 Stock issuance costs 47 72 Prepaid expenses 5,857 679 Interest receivable 729 — Deferred transaction costs — 5,892 Total Other Current Assets $ 6,655 $ 6,679 Other Assets: Lease receivable, net $ 16 $ 16 Stock issuance costs 72 48 Security deposits 3,249 235 Total Other Assets $ 3,337 $ 299	2020 2019 Other Current Assets: Lease receivable, net $ 36 $ 13 Deferred acquisition costs 72 32 Prepaid expenses 679 189 Stock issuance costs 5,892 — Total Other Current Assets $ 6,679 $ 234 Other Assets: Lease receivable, net $ 16 $ 38 Deferred acquisition costs 48 50 Security deposits 235 255 Total Other Assets $ 299 $ 343
Schedule of deferred acquisitions cost		2020 2019 Beginning $ 82 $ 22 Written 173 93 Amortized (135) (33) Ending 120 82 Less: current portion 72 32 Non-current 48 50 Total Deferred Acquisition Costs $ 120 $ 82

Long-term Debt (Tables)

Long-term Debt (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Long-term Debt
Summary of long-term debt, including capital lease obligations	​ March 31, December 31, 2021 2020 Capital lease obligation $ 1,305 $ 1,305 Promissory note — 2,990 Convertible notes payable, net — 3,325 Paycheck Protection Program loan — 1,749 ​ 1,305 9,369 Current portion of long-term debt (55) (6,370) Long-term Debt $ 1,250 $ 2,999	2020 2019 Term note payable $ — $ 9 Capital lease obligation 1,305 — Promissory note 2,990 — Convertible notes payable, net 3,325 2,816 Paycheck Protection Program loan 1,749 — 9,369 2,825 Current portion of long-term debt (6,370) (2,825) Long-term Debt $ 2,999 $ —
Schedule of warrant assumptions		Maturity 4 years Risk-free interest rate 0.27 % Volatility 85.00 % Dividend yield 0.00 % Weighted average fair value per common share 1.89
Schedule of stock warrants	The following is an analysis of the warrants to purchase shares of the Company’s stock deemed acquired as part of the Merger and outstanding during the three months ended March 31, 2021: March 31, 2021 Stock warrants outstanding–Public 10,185,774 Stock warrants outstanding–Private 6,074,310 Stock warrants cancelled — Stock warrants exercised — Stock warrants outstanding 16,260,084	2020 2019 Stock warrants outstanding, January 1 699,026 239,121 Stock warrants issued with convertible notes payable 78,239 459,905 Stock warrants cancelled — — Stock warrants exercised — — Stock warrants outstanding, December 31 777,265 699,026

Accrued Expenses (Tables)

Accrued Expenses (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accrued Expenses
Schedule of accrued expenses	March 31, December 31, 2021 2020 License and title fees $ 1,634 $ 785 Payroll and bonuses 2,038 837 Deferred rent 262 199 Technology 2,900 — Other 4,316 1,742 Total Accrued Expenses $ 11,150 $ 3,563	2020 2019 License and title fees $ 785 $ 399 Payroll and bonuses 837 388 Deferred rent 199 300 Other accrued expenses 1,742 489 Total Accrued Expenses $ 3,563 $ 1,576

Other Liabilities (Tables)

Other Liabilities (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Liabilities
Schedule of other liabilities	March 31, December 31, 2021 2020 Other Liabilities, Current Unearned insurance premiums $ 815 $ 257 Other Liabilities Unearned insurance premiums 1,423 1,680 Other long-term liabilities 147 135 Historic warrants liability — 144 Other Liabilities, Long-term $ 1,570 $ 1,959	2020 2019 Other Liabilities, Current Unearned insurance premiums $ 257 $ 434 Other Liabilities Unearned insurance premiums 1,680 719 Other long-term liabilities 135 97 Stock warrants liability 144 115 Other Liabilities, Long-term $ 1,959 $ 931

Lease Commitments (Tables)

Lease Commitments (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Lease Commitments
Schedule of facility lease commitments due for the next five years, and thereafter	Total Capital Total Per Year Leases 2021 (remaining) $ 2,158 $ 139 2022 3,675 183 2023 3,535 187 2024 2,552 190 2025 2,339 194 Thereafter 3,977 1,078 Total $ 18,236 $ 1,971 Less: amount representing interest $ (666) Present value of minimum lease payments $ 1,305 Less: current obligation $ (55) Long-term obligations under capital lease $ 1,250	Operating Leases Capital Leases 2021 $ 2,303 $ 139 2022 2,372 183 2023 2,209 187 2024 1,216 190 2025 993 194 Thereafter 511 1,078 Total Minimum Lease Payments $ 9,604 $ 1,971 Less: amount representing interest (666) Present value of minimum lease payments 1,305 Less: current obligation (55) Long-term obligations under capital lease $ 1,250
Schedule of future minimum lease payments due to third parties and the related expected future receipts related to these lease vehicles	Payments Due to Third-Parties Future Receipts 2021 (remaining) $ 1,225 $ 1,473 2022 1,158 1,389 2023 731 865 2024 312 367 2025 11 13 Total $ 3,437 $ 4,107	Payments Due to Third Parties Future Receipts 2021 $ 1,538 $ 1,862 2022 1,024 1,236 2023 596 711 2024 194 233 2025 2 3 Total $ 3,354 $ 4,045

Stock-Based Compensation Plan (

Stock-Based Compensation Plan (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
2011 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of options outstanding and weighted average exercise price	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 1,785,251 Granted — — Forfeited (137,601) 0.55 Balance at December 31, 2018 1,647,650 0.60 Granted — — Forfeited (76,445) 0.67 Balance at December 31, 2019 1,571,205 0.59 Granted — — Forfeited — — Balance at December 31, 2020 1,571,205 0.59
Schedule of stock options vested and expected to vest	Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 1,515,146 1.49 years $ 0.58 Exercisable 1,515,146 1.49 years $ 0.58 Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 1,515,146 1.49 years $ 0.58 Exercisable 1,515,146 1.49 years $ 0.58 ​ Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 3,961,658 8.31 years $ 0.92 Exercisable 3,538,672 8.18 years $ 0.92	Wgt. Avg. Number of Remaining Wgt. Avg. Options Contractual Life Exercise Price Outstanding 1,571,205 Exercisable 1,494,377
2017 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of options outstanding and weighted average exercise price	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70
Schedule of stock options vested and expected to vest	Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 1,515,146 1.49 years $ 0.58 Exercisable 1,515,146 1.49 years $ 0.58 ​ Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 3,961,658 8.31 years $ 0.92 Exercisable 3,538,672 8.18 years $ 0.92
Schedule of weighted average inputs used	Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 6.25 years Risk-free interest rate 0.62 % Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00 Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00	Expected volatility % Expected dividend yield — % Expected term (in years) 5 years Risk-free interest rate %

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2020
Income Taxes
Schedule of income tax expense	2020 2019 2018 Current Income Tax Expense : Federal $ — $ — $ — State and local 10 11 3 Total Current Income Tax Expense 10 11 3 Deferred Income Tax Expense : Federal — — — State and local — — — Total Income Tax Expense $ 10 $ 11 $ 3
Schedule of significant components of the Company's deferred tax assets and liabilities	2020 2019 Deferred Tax Assets : Net operating losses $ 7,042 $ 5,881 Accrued expenses 109 — Unearned premiums 466 — Contract expense 332 262 Intangible assets 204 — Other 406 809 Total deferred tax assets 8,559 6,952 Less: valuation allowance (8,559) (6,910) Net Deferred Tax Assets — 42 Deferred Tax Liabilities Fixed assets — (42) Total deferred tax liabilitie s — (42) Net Deferred Tax Liabilities — (42) Net Deferred Tax Assets/Liabilities $ — $ —
Summary of change in valuation allowance	2020 2019 2018 January 1, $ 6,910 $ 3,986 $ 2,008 Additions – Charged 1,649 2,924 1,731 Deductions – Charged — — — Other — — 247 December 31, $ 8,559 $ 6,910 $ 3,986
Schedule of difference between income tax benefit expected and the reported income tax expense	2020 2019 2018 Loss Before Income Tax Expense $ (6,542) $ (12,667) $ (6,557) Income tax benefit at federal statutory rates (1,372) (2,660) (1,377) State and local income taxes (79) (471) (238) Investment remeasurement — — (126) Valuation allowances 1,649 2,924 1,731 Change in fair value of redeemable convertible preferred stock tranche obligation (194) 293 57 Other 6 (75) (44) Total Income Tax Expense $ 10 $ 11 $ 3 Effective Tax Rate (0.15) % (0.09) % (0.05) %

Net Loss Per Share Attributab_2

Net Loss Per Share Attributable to Common Stockholders (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Net Loss Per Share Attributable to Common Stockholders
Schedule of basic and diluted net loss per share attributable to common stockholders	2021 2020 Numerator: Net Loss $ (15,022) $ (1,507) Denominator: Weighted average common shares outstanding, basic and diluted 100,817,385 58,621,041 Net loss per share attributable to common stockholders, basic and diluted $ (0.15) $ (0.03)	2020 2019 2018 Numerator: Net loss $ (6,552) $ (12,678) $ (6,560) Denominator: Weighted average shares outstanding, basic and diluted 58,621,042 56,737,364 50,325,203 Net loss per share attributable to common stockholders, basic and diluted $ (0.11) $ (0.22) $ (0.13)
Schedule of potentially dilutive securities excluded from the computation of diluted net loss per share	2021 2020 Public warrants 10,185,774 — Private warrants 6,074,310 — Earnout RSUs 640,421 — Earnout shares 6,945,732 — Convertible notes payable — 2,918,556 Historic warrants — 645,167 Stock options outstanding to purchase shares of common stock 6,886,205 4,926,397 Total 30,732,442 8,490,120	2020 2019 2018 Convertible notes payable 3,556,335 2,876,492 — Stock warrants 777,265 699,026 239,121 Stock options outstanding to purchase shares of common stock 5,532,863 4,416,762 4,247,318 Total 9,866,462 7,992,280 4,486,439

Concentrations (Tables)

Concentrations (Tables)	12 Months Ended
	Dec. 31, 2020
Concentrations
Schedule of suppliers accounted for 10% or more of total purchases and its outstanding balance of accounts payable	Total purchases from vendor to total purchases for the year ended December 31, Vendor 2020 2019 2018 Vendor A 33 % — % — % Vendor B 13 % 12 % — % Accounts payable to the vendor as of December 31, Vendor 2020 2019 Vendor A $ 2,918 $ — Vendor B $ 368 $ 257

Description of Business (Detail

Description of Business (Details)	Sep. 13, 2018	Mar. 31, 2021location	Dec. 31, 2020customer
Business Acquisition
Number of retail hub locations		11	10
Orange Grove Fleet Solutions, LLC
Business Acquisition
Redemption of membership interest (in percent)	80.00%
Acquisition of membership interest (in percent)	20.00%
ASC 805
Business Acquisition
Acquisition of membership interest (in percent)	20.00%
Orange Grove Fleet Solutions, LLC
Business Acquisition
Ownership interest (in percent)		100.00%	100.00%
Orange Peel Protection Reinsurance Co. Ltd.
Business Acquisition
Ownership interest (in percent)		100.00%	100.00%
Orange Peel Protection Reinsurance Co. Ltd. | Orange Peel LLC
Business Acquisition
Ownership interest (in percent)			100.00%
Orange Peel LLC
Business Acquisition
Ownership interest (in percent)		100.00%	100.00%

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021USD ($)	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)segment	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Property, Plant and Equipment
Restricted cash	$ 227		$ 605	$ 888
Advertising costs incurred	$ 2,526	$ 541	$ 3,199	$ 3,803	$ 1,871
Number of reportable segments | segment			1
Leasehold Improvements
Property, Plant and Equipment
Estimated useful lives (in years)			15 years
Corporate Vehicles
Property, Plant and Equipment
Estimated useful lives (in years)			5 years
Minimum
Property, Plant and Equipment
Lease term (in years)			1 year
Minimum | Furniture, fixtures, and equipment
Property, Plant and Equipment
Estimated useful lives (in years)			1 year
Maximum
Property, Plant and Equipment
Lease term (in years)			4 years
Maximum | Furniture, fixtures, and equipment
Property, Plant and Equipment
Estimated useful lives (in years)			5 years

Reverse Recapitalization (Detai

Reverse Recapitalization (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
stockholders' (deficit) equity	$ 229,108	$ (13,237)	$ (6,786)	$ (4,861)	$ 393		$ 7,816
Treasury Stock
Additional paid in capital						$ (1,500)
Retroactive application of recapitalization
stockholders' (deficit) equity		$ 17,558		$ 17,558	$ 8,669

Reverse Recapitalization - Reca

Reverse Recapitalization - Recapitalization to Consolidated Statements of Stockholders' Equity (Details)	May 01, 2019shares	Jan. 22, 2019shares	Jan. 01, 2018shares
Common Stock
Conversion Ratio			10.1927
Recapitalized common share			39,436,759
Treasury Stock
Conversion Ratio			10.1927
Recapitalized common share			(1,555,324)
Preferred Stock
Conversion Ratio	10.1927	10.1927	10.1927
Recapitalized common share	5,185,149	3,110,691	12,443,768
Previously Reported | Common Stock
As Previously Reported			3,869,118
Previously Reported | Treasury Stock
As Previously Reported			(152,592)
Previously Reported | Preferred Stock
As Previously Reported	508,712	305,188	1,220,851

Reverse Recapitalization - Re_2

Reverse Recapitalization - Recapitalization to Consolidated Statements of Operations (Details)	Dec. 31, 2020USD ($)shares	Jan. 01, 2020USD ($)shares	Dec. 31, 2019USD ($)shares	May 01, 2019USD ($)shares	Jan. 22, 2019USD ($)shares	Jan. 01, 2019USD ($)shares	Dec. 31, 2018USD ($)shares	Jan. 01, 2018USD ($)shares
Reverse Recapitalization
Recapitalized Common Stock	58,621,042	58,621,042	58,621,042	58,621,042	53,435,893	50,325,203	50,325,203	50,325,203
Days outstanding | $	366	366	365	245	99	21	365	365
% of weighting	100.00%	100.00%	100.00%	67.00%	27.00%	6.00%	100.00%	100.00%
Weighted Average Outstanding Shares	58,621,042	58,621,042	56,737,364	39,348,371	14,493,571	2,895,423	50,325,203	50,325,203

Revenue Recognition (Details)

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue
Finance and insurance, net	$ 1,554	$ 892	$ 3,898	$ 3,117	$ 1,608
Lease income, net	107	145	490	533	142
Total Revenues	56,612	25,390	118,625	102,486	58,351
Retail vehicle sales
Disaggregation of Revenue
Total Revenues	50,383	21,042	104,253	90,382	53,448
Wholesale vehicle sales
Disaggregation of Revenue
Total Revenues	4,568	3,311	9,984	8,454	3,153
Vehicle Sales
Disaggregation of Revenue
Finance and insurance, net	1,554	892	3,898	3,117	1,608
Total Revenues	56,505	25,245	118,135	101,953	58,209
Vehicle Sales | Retail vehicle sales
Disaggregation of Revenue
Total Revenues	50,383	21,042	104,253	90,382	53,448
Vehicle Sales | Wholesale vehicle sales
Disaggregation of Revenue
Total Revenues	4,568	3,311	9,984	8,454	3,153
Fleet Management
Disaggregation of Revenue
Lease income, net	107	145	490	533	142
Total Revenues	$ 107	$ 145	$ 490	$ 533	$ 142

Revenue Recognition - Summary o

Revenue Recognition - Summary of Revenues and Cost of Sales (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue
Sales	$ 56,612	$ 25,390	$ 118,625	$ 102,486	$ 58,351
Cost of sales	54,604	22,918	107,369	93,780	52,708
Gross Profit	2,008	2,472	11,256	8,706	5,643
Retail vehicle sales
Disaggregation of Revenue
Sales	50,383	21,042	104,253	90,382	53,448
Cost of sales	48,917	19,555	96,983	84,534	48,523
Gross Profit	1,466	1,487	7,270	5,848	4,925
Wholesale vehicle sales
Disaggregation of Revenue
Sales	4,568	3,311	9,984	8,454	3,153
Cost of sales	5,687	3,363	10,386	9,246	4,185
Gross Profit	$ (1,119)	$ (52)	$ (402)	$ (792)	$ (1,032)

Marketable Securities - Summary

Marketable Securities - Summary investments in fixed maturity debt securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	$ 218,040	$ 642
Gross Unrealized Gains	9	16
Gross Unrealized Losses	(125)	(1)
Estimated Fair Value	217,924	657
U.S. Treasuries
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	181	240
Gross Unrealized Gains	2	6
Estimated Fair Value	183	246
Corporate bonds
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	63,197	261
Gross Unrealized Gains	2	5
Gross Unrealized Losses	(111)	(1)
Estimated Fair Value	$ 63,088	265
U.S. states, territories, and political subdivisions
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost		141
Gross Unrealized Gains		5
Estimated Fair Value		$ 146

Marketable Securities - Contrac

Marketable Securities - Contractual maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Amortized Cost
Due in one year or less	$ 173,174	$ 77
Due after one year through five years	44,540	379
Due after five years through ten years	326	186
Total	218,040	642
Estimated Fair Value
Due in one year or less	173,145	78
Due after one year through five years	44,457	388
Due after five years through ten years	322	191
Total	$ 217,924	$ 657

Marketable Securities - Summa_2

Marketable Securities - Summary of company's gross unrealized losses in fixed debt securities (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021USD ($)security	Dec. 31, 2020USD ($)security
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Estimated Fair Value, Less Than 12 Months	$ 41,512	$ 39
Estimated Fair Value, 12 Months or more	40,871
Estimated Fair Value, Total	82,533	39
Unrealized Losses, Less Than 12 Months	(42)	(1)
Unrealized Losses, 12 Months or more	83	0
Unrealized Losses, Total	$ (125)	$ (1)
Number of securities with gross unrealized losses that were in excess of 12 | security	25	0
Number of securities with gross unrealized losses that were less than 12 months	98	2
Amortized cost, Percentage	3.50%	1.60%
Corporate bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Estimated Fair Value, Less Than 12 Months	$ 23,226	$ 39
Estimated Fair Value, 12 Months or more	39,736
Estimated Fair Value, Total	62,962	39
Unrealized Losses, Less Than 12 Months	(31)	(1)
Unrealized Losses, 12 Months or more	80
Unrealized Losses, Total	(111)	(1)
Maximum
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses, 12 Months or more	$ 26	$ 325

Marketable Securities - Summa_3

Marketable Securities - Summary of xost and estimated fair value of the investments in equity securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Marketable Securities
Equity securities, Cost	$ 433	$ 335
Equity securities, Estimated Fair Value	$ 500	$ 375

Marketable Securities - Proceed

Marketable Securities - Proceeds from sales and maturites, gross realiszed gains, gross realized losses, net realized gains (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Debt Securities, Trading, Realized Gain (Loss) [Abstract]
Proceeds	$ 59	$ 18	$ 18
Gross Realized Losses		3
Net Realized (Losses)		(3)
Equity Securities, FV-NI, Realized Gain (Loss) [Abstract]
Proceeds			50
Gross Realized Gains			1
Gross Realized Losses			(2)
Net Realized (Losses)			(1)
Marketable Securities, Gain (Loss) [Abstract]
Proceeds	$ 59	18	68
Gross Realized Gains		1	1
Gross Realized Losses		(3)	(2)
Net Realized (Losses)		$ (3)	$ (1)

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Summaries of Fair Value Measurements and Hierarchy Level (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Assets	$ 271,142	$ 1,437
Liabilities:
Liabilities	69,105	2,976	$ 3,870
Equity securities
Assets
Assets	500	375
Fixed maturity debt securities
Assets
Assets		657
Redeemable convertible preferred stock tranche obligation
Liabilities:
Liabilities		2,832	3,755
Stock warrants liability
Liabilities:
Liabilities		144	115
Money market funds
Assets
Assets	37,449	405	688
Level 1
Assets
Assets	37,949	1,026
Liabilities:
Liabilities	16,705
Level 1 | Equity securities
Assets
Assets	500	375
Level 1 | Fixed maturity debt securities
Assets
Assets		246
Level 1 | Money market funds
Assets
Assets	37,449	405	688
Level 2
Assets
Assets	233,193	411
Liabilities:
Liabilities	9,962
Level 2 | Fixed maturity debt securities
Assets
Assets		411
Level 3
Liabilities:
Liabilities	$ 42,438	2,976	3,870
Level 3 | Redeemable convertible preferred stock tranche obligation
Liabilities:
Liabilities		2,832	3,755
Level 3 | Stock warrants liability
Liabilities:
Liabilities		$ 144	$ 115

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Summary of Changes in Estimated Fair Value of Company's Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Liabilities at the beginning of the period	$ 2,976	$ 3,870	$ 3,870	$ 3,328
Issuances	74,284		15	72
Settlements	(2,976)			(902)
Change in Fair value	(31,846)	(297)	(909)	1,372
Liabilities at the end of the period	42,438	3,573	2,976	3,870
Redeemable convertible preferred stock tranche obligation
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Liabilities at the beginning of the period	2,832	3,755	3,755	3,261
Settlements	(2,832)			(902)
Change in Fair value		(284)	(923)	1,396
Liabilities at the end of the period		3,471	2,832	3,755
Stock warrants liability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Liabilities at the beginning of the period	$ 144	$ 115	115	67
Issuances			15	72
Change in Fair value			14	(24)
Liabilities at the end of the period			$ 144	$ 115

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Black Scholes Pricing Model Included Significant Unobservable Inputs (Details)	Mar. 31, 2021	Jan. 21, 2021	Dec. 31, 2020	Dec. 31, 2019
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	80	80	65	45
Dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing			0	0
Expected term (in years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	4.7	5
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	0.87	0.45	0.27	1.69
Marketability discount
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing			60	50

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 02, 2020	Apr. 30, 2020
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair value assets level 1 to 2 transfers	$ 0	$ 0	$ 0	$ 0
Fair value assets level 2 to 1 transfers	0	0	0	0
Fair value liabilities level 1 to 2 transfers	0	0	0	0
Fair value liabilities level 2 to 1 transfers	0	0	0	0
Fair value assets transfers in to level 3	0	0	0	0
Fair value assets transfers out of level 3	0	0	0	0
Fair value liability transfers in to level 3	0	0	0	0
Fair value liability transfers out of level 3	0	$ 0	0	0
Carrying value	$ 1,305		9,369	$ 2,825
Debt instrument, face amount					$ 2,990
Convertible note
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair value of debt			3,264
Carrying value			3,325
Paycheck Protection Program loan
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair value of debt			1,749
Carrying value			$ 1,749			$ 1,749

Accounts Receivable, Net (Detai

Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 9,391	$ 4,199	$ 3,283
Allowance for doubtful accounts	(67)	(67)	(27)
Total Accounts Receivable, net	9,324	4,132	3,256
Contracts in transit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,521	3,321	2,645
Trade
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	243	240	202
Finance commission
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	329	132	87
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 298	$ 506	$ 349

Accounts Receivable, Net - Addi

Accounts Receivable, Net - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Accounts Receivable, Net
Contract in transit receivables period	30 days
Interest on delinquent receivables	$ 0

Inventory and Floor Plan Note_3

Inventory and Floor Plan Notes Payable (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Inventory and Floor Plan Notes Payable
Used vehicles	$ 9,274	$ 11,202	$ 7,592
Parts	37		33
Total	$ 9,311	$ 11,202	$ 7,625

Inventory and Floor Plan Note_4

Inventory and Floor Plan Notes Payable - Additional Details (Details) - Automotive Finance Corporation - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Line of Credit Facility [Line Items]
Amount available under facility	$ 12,000
Base spread (as a percent)	2.00%
Weighted average interest rate	5.25%	6.75%

Property and Equipment, Net (De

Property and Equipment, Net (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 3,496,000		$ 2,910,000	$ 1,507,000
Less: accumulated depreciation	(1,147,000)		(1,042,000)	(876,000)
Property and Equipment, net	2,349,000		1,868,000	631,000
Depreciation expense for property and equipment	105,000	$ 51,000	195,000	260,000	$ 253,000
Capital lease asset building
Property, Plant and Equipment [Line Items]
Total property and equipment	1,305,000		1,305,000
Amortization of capital lease asset			0
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	887,000		702,000	688,000
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	1,161,000		760,000	715,000
Corporate Vehicles
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 143,000		$ 143,000	$ 104,000

Lease Vehicles, Net (Details)

Lease Vehicles, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lease Vehicles, Net
Vehicles		$ 629	$ 1,083
Less: accumulated depreciation		(456)	(639)
Total Lease Vehicles, net	$ 58	$ 173	$ 444

Lease Vehicles, Net - Rental Re

Lease Vehicles, Net - Rental Receipts (Details) - Vehicle lease $ in Thousands	Dec. 31, 2020USD ($)
Lessee, Lease, Description [Line Items]
2021	$ 37
2022	24
2023	2
Total	$ 63

Lease Vehicles, Net - Additiona

Lease Vehicles, Net - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Depreciation expense	$ 341	$ 504	$ 338
Minimum
Lessee, Lease, Description [Line Items]
Five Years	1 year
Maximum
Lessee, Lease, Description [Line Items]
Five Years	4 years
Vehicle lease
Lessee, Lease, Description [Line Items]
Depreciation expense	$ 146	$ 244	$ 85
Five Years	5 years
Vehicle lease | Minimum
Lessee, Lease, Description [Line Items]
Operating leases income	$ 323
Vehicle lease | Maximum
Lessee, Lease, Description [Line Items]
Operating leases income	$ 780

Other Assets - Other Assets (De

Other Assets - Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Assets
Lease receivable, net	$ 22	$ 36	$ 13
Deferred acquisition costs		72	32
Prepaid expenses	5,857	679	189
Stock issuance costs	47	72
Total Other Current Assets	6,655	6,679	234
Other Assets:
Lease receivable, net	16	16	38
Deferred acquisition costs		48	50
Security deposits	3,249	235	255
Total Other Assets	$ 3,337	$ 299	$ 343

Other Assets - Deferred Acquisi

Other Assets - Deferred Acquisition (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Other Assets
Beginning		$ 82	$ 22
Written	$ 173	93
Amortized	(135)	(33)
Ending	120	82
Less: current portion	72	32
Non-current	48	50
Total Deferred Acquisition Costs	$ 120	$ 82

Long-term Debt (Details)

Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Apr. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Gross loan	$ 1,305	$ 9,369		$ 2,825
Current portion of long-term debt	(55)	(6,370)		(2,825)
Long-term Debt	1,250	2,999
Term note payable
Debt Instrument [Line Items]
Gross loan				9
Capital lease obligation
Debt Instrument [Line Items]
Gross loan	$ 1,305	1,305
Promissory note
Debt Instrument [Line Items]
Gross loan		2,990
Convertible notes payable
Debt Instrument [Line Items]
Gross loan		3,325		$ 2,816
Paycheck Protection Program loan
Debt Instrument [Line Items]
Gross loan		$ 1,749	$ 1,749

Long-term Debt - Weighted avera

Long-term Debt - Weighted average assumptions (Details)	Dec. 31, 2020
Maturity
Debt Instrument [Line Items]
Warrants measurement inputs	4
Risk-free interest rate
Debt Instrument [Line Items]
Warrants measurement inputs	0.27
Expected volatility
Debt Instrument [Line Items]
Warrants measurement inputs	85
Dividend yield
Debt Instrument [Line Items]
Warrants measurement inputs	0
Weighted average fair value per common share
Debt Instrument [Line Items]
Warrants measurement inputs	1.89

Long-term Debt - Stock warrants

Long-term Debt - Stock warrants (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Warrants and Rights Note Disclosure
Stock warrants outstanding, January 1	$ 115
Stock warrants outstanding, December 31	144	$ 115
Stock warrants
Warrants and Rights Note Disclosure
Stock warrants outstanding, January 1	699,026	239,121
Stock warrants issued with convertible notes payable	78,239	459,905
Stock warrants outstanding, December 31	$ 777,265	$ 699,026

Long-term Debt - Additional Inf

Long-term Debt - Additional Information (Details) $ / shares in Units, $ in Thousands	Dec. 23, 2020	Dec. 02, 2020USD ($)	Dec. 20, 2019USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2020USD ($)trancheitem$ / shares	Dec. 31, 2019USD ($)	Sep. 20, 2021USD ($)	Mar. 31, 2021USD ($)$ / shares	Apr. 30, 2020USD ($)	Apr. 08, 2020USD ($)tranche
Debt Instrument [Line Items]
Term of lease	10 years 3 months
Total future minimum lease payments					$ 1,971
Annual rent escalation					2.00%
Number of renewal options | item					3
Renewal term					5 years
Issuance costs					$ 10	$ 112
Notes issued				$ 500
Exercise price of stock warrants | $ / shares								$ 11.50
Debt instrument, face amount		$ 2,990
Gross loan					9,369	2,825		$ 1,305
Term note payable
Debt Instrument [Line Items]
Monthly installments					$ 1
Interest rate (as a percent)					16.01%
Fixed interest rate per annum					16.01%
Gross loan						9
Convertible notes payable
Debt Instrument [Line Items]
Interest rate (as a percent)					6.00%
Fixed interest rate per annum					6.00%
Number of additional tranches | tranche										4
Amount of additional tranches										$ 500
Maximum number of additional tranches | tranche					2
Minimum amount of additional tranches					$ 1,000
Debt instrument, face amount			$ 5,000
Maximum number of additional tranches | tranche					2
Convertible notes payable net of issuance cost					$ 3,500
Interest payable					212	6
Gross loan					$ 3,325	2,816
Convertible notes payable | Initial Tranche
Debt Instrument [Line Items]
Amount of initial tranche			3,000
Convertible notes payable | Subsequent Tranche
Debt Instrument [Line Items]
Minimum amount of additional tranches							$ 1,000
Stock warrants liability
Debt Instrument [Line Items]
Fair value						72
Exercise price of stock warrants | $ / shares					$ 0.01
Number of stock warrants exercised					$ 0
Convertible notes payable net of issuance cost						112
Stock warrants liability | Initial Tranche
Debt Instrument [Line Items]
Amount of initial tranche						$ 3,000
Capital lease obligation
Debt Instrument [Line Items]
Gross loan					$ 1,305			$ 1,305
Promissory note
Debt Instrument [Line Items]
Interest rate (as a percent)					6.00%
Issuance costs		$ 10
Debt instrument term		2 years
Fixed interest rate per annum					6.00%
Debt instrument, face amount		$ 3,000
Interest payable					$ 15
Gross loan					2,990
Paycheck Protection Program loan
Debt Instrument [Line Items]
Gross loan					$ 1,749				$ 1,749
NPA with AFC | Convertible notes payable
Debt Instrument [Line Items]
Minimum amount of additional tranches			$ 1,000
Stock warrants received percentage on fully diluted common stock			0.20%

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accrued Expenses
License and title fees	$ 1,634	$ 785	$ 399
Payroll and bonuses	2,038	837	388
Deferred rent	262	199	300
Other accrued expenses	4,316	1,742	489
Total Accrued Expenses	11,150	3,563	$ 1,576
Accrued Transaction Expenses	$ 0	$ 6,052

Orange Grove Promissory Notes (

Orange Grove Promissory Notes (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 02, 2020
Short-term Debt [Line Items]
Face amount						$ 2,990
Interest expense	$ 175	$ 149	$ 518	$ 651	$ 466
Promissory note
Short-term Debt [Line Items]
Outstanding amount					418
Interest expense				$ 19	11
Promissory note | Orange Grove Fleet Solutions, LLC
Short-term Debt [Line Items]
Face amount					$ 515
Membership interest					80.00%
Fixed interest rate per annum					8.00%

Other Liabilities (Details)

Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Liabilities, Current
Unearned insurance premiums	$ 815	$ 257	$ 434
Other Liabilities
Unearned insurance premiums	1,423	1,680	719
Other long-term liabilities	147	135	97
Stock warrants liability		144	115
Other Liabilities, Long-term	$ 1,570	$ 1,959	$ 931

Lease Commitments - Facility le

Lease Commitments - Facility lease commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Operating Leases
2021		$ 2,303
2022		2,372
2023		2,209
2024		1,216
2025		993
Thereafter		511
Total Minimum Lease Payments		9,604
Capital Leases
2021		139
2022		183
2023		187
2024		190
2025		194
Thereafter		1,078
Total Minimum Lease Payments		1,971
Less: amount representing interest		(666)
Present value of minimum lease payments		1,305
Less: current obligation		(55)
Long-term obligations under capital lease		$ 1,250
Facility lease
Operating Leases
2021	$ 2,158
2022	3,675
2023	3,535
2024	2,552
2025	2,339
Thereafter	3,977
Total Minimum Lease Payments	18,236
Capital Leases
2021	139
2022	183
2023	187
2024	190
2025	194
Thereafter	1,078
Total Minimum Lease Payments	1,971
Less: amount representing interest	(666)
Present value of minimum lease payments	1,305
Less: current obligation	(55)
Long-term obligations under capital lease	$ 1,250

Lease Commitments - Payments du

Lease Commitments - Payments due to third parties and the related expected future receipts (Details) - Vehicle lease - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Payments due
2021	$ 1,225	$ 1,538
2022	1,158	1,024
2023	731	596
2024	312	194
2025	11	2
Total	3,437	3,354
Future Receipts
2021	1,473	1,862
2022	1,389	1,236
2023	865	711
2024	367	233
2025	13	3
Total	$ 4,107	$ 4,045

Lease Commitments - Additional

Lease Commitments - Additional information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Rent expense	$ 688	$ 462	$ 1,720	$ 2,000	$ 1,000
Minimum | Lease expiration march 2031
Lessee, Lease, Description [Line Items]
Monthly rental payments			3
Minimum | Lease expiration december 2023
Lessee, Lease, Description [Line Items]
Monthly rental payments			291
Maximum | Lease expiration march 2031
Lessee, Lease, Description [Line Items]
Monthly rental payments			50
Maximum | Lease expiration december 2023
Lessee, Lease, Description [Line Items]
Monthly rental payments			$ 1,770

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Monthly management fees payable			$ 21
Yearly management fees payable			250
Management fees payable	$ 0		5,082	$ 3,102
Management fee expense	$ 2	$ 62	215	250	$ 250
Orange Grove Fleet Solutions, LLC
Related Party Transaction [Line Items]
Income from management fee					127
Expense reimbursements					$ 250
Series A Preferred Stock
Related Party Transaction [Line Items]
Management fees payable			331	250
Management fee expense			$ 5,100	$ 3,100

Redeemable Convertible Prefer_2

Redeemable Convertible Preferred Stock - Additional Information (Details) $ / shares in Units, $ in Thousands	1 Months Ended			12 Months Ended
	May 31, 2019shares	Jan. 31, 2019shares	Sep. 30, 2017shares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)$ / shares
Temporary Equity [Line Items]
Distribution priority ratio				1.5
Preferred returns percentage				8.00%
Unpaid cumulative dividend				$ 4,800	$ 2,900
Series A Preferred Stock
Temporary Equity [Line Items]
Distribution priority ratio				1.5
Preferred returns percentage				8.00%
Unpaid cumulative dividend				$ 4,800	2,900
Liquidation preference				$ 37,114	$ 34,300
Right to purchase additional shares in each tranche | shares				508,688
Dividend per share | $ / shares				$ 2.34	$ 1.41
First Tranche | Series A Preferred Stock
Temporary Equity [Line Items]
Temporary Equity, Stock Issued During Period, Shares, New Issues | shares			1,220,851
Number of members of Company's Board of Directors can be elected by Preferred Stock holders				3
Second Tranche | Series A Preferred Stock
Temporary Equity [Line Items]
Temporary Equity, Stock Issued During Period, Shares, New Issues | shares	508,712	305,188		813,900
Fair value				$ 482
Number of members of Company's Board of Directors can be elected by Preferred Stock holders				5
Third Tranche | Series A Preferred Stock
Temporary Equity [Line Items]
Fair value				$ 1,214
Fourth Tranche | Series A Preferred Stock
Temporary Equity [Line Items]
Fair value				$ 1,214

Stock-Based Compensation Plan -

Stock-Based Compensation Plan - number of options outstanding and weighted average exercise price related to the shares (Details) - $ / shares	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
2011 Stock Option Plans
Weighted Average Remaining Contractual Term (Years)
Outstanding			1 year 8 months 1 day
Exercisable			1 year 8 months 1 day
2017 Stock Option Plan
Weighted Average Exercise Price Per Share (in whole dollars)
Exercisable, Ending balance	$ 6.21
Stock option
Weighted Average Exercise Price Per Share (in whole dollars)
Exercisable, Ending balance	$ 6.55
Stock option | 2011 Stock Option Plan
Number of Shares
Outstanding, Beginning balance	1,571,205	1,571,205	1,571,205
Granted	0	0	0	0	0
Forfeited	0
Outstanding, Ending balance	1,515,146	1,571,205	1,571,205	1,571,205
Exercisable, Ending balance	1,515,146
Vested, Ending balance	1,515,146	1,482,528
Weighted Average Exercise Price Per Share (in whole dollars)
Outstanding, Beginning balance	$ 0.59	$ 0.59	$ 0.59
Granted	0
Forfeited	0
Outstanding, Ending balance	0.58	0.59	$ 0.59	$ 0.59
Exercisable, Ending balance	0.58
Vested, Ending balance	$ 0.58	$ 0.59
Weighted Average Remaining Contractual Term (Years)
Outstanding	1 year 5 months 27 days
Exercisable	1 year 5 months 27 days
Stock option | 2011 Stock Option Plans
Number of Shares
Outstanding, Beginning balance	1,571,205	1,571,205	1,571,205	1,647,650	1,785,251
Forfeited				(76,445)	(137,601)
Outstanding, Ending balance			1,571,205	1,571,205	1,647,650
Exercisable, Ending balance			1,494,377
Weighted Average Exercise Price Per Share (in whole dollars)
Outstanding, Beginning balance	$ 0.59	$ 0.59	$ 0.59	$ 0.60	$ 0.59
Forfeited				0.67	0.55
Outstanding, Ending balance			0.59	$ 0.59	$ 0.60
Exercisable, Ending balance			$ 0.59
Weighted Average Remaining Contractual Term (Years)
Outstanding			1 year 8 months 1 day
Exercisable			1 year 8 months 1 day
Stock option | 2017 Stock Option Plan
Number of Shares
Outstanding, Beginning balance	3,961,658	2,845,557	2,845,557	2,599,669
Granted			1,116,101	1,569,676	2,665,921
Forfeited				(1,323,787)	(66,253)
Outstanding, Ending balance			3,961,658	2,845,557	2,599,669
Vested, Ending balance	3,538,672
Weighted Average Exercise Price Per Share (in whole dollars)
Outstanding, Beginning balance	$ 0.92	$ 0.92	$ 0.92	$ 0.92
Granted			0.92	0.92	$ 0.92
Forfeited			0.92	0.92	0.92
Outstanding, Ending balance	$ 0.92		$ 0.92	$ 0.92	$ 0.92
Weighted Average Remaining Contractual Term (Years)
Outstanding			8 years 5 months 16 days
Exercisable			0 years

Stock-Based Compensation Plan_2

Stock-Based Compensation Plan (Details) - 2017 Stock Option Plan	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Fair value assumptions
Expected term (in years)		5 years
Stock option
Fair value assumptions
Expected volatility	80.00%	81.00%
Expected dividend yield	0.00%
Risk-free interest rate		0.37%

Stock-Based Compensation Plan_3

Stock-Based Compensation Plan - number of options outstanding and weighted average exercise price related to shares set aside for the 2017 Stock Option Plan 3 (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 41,963	$ 34
2017 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of options granted			$ 6.21
Stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value of options granted			$ 6.55
Stock option | 2011 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants during the period	0	0	0	0	0
Forfeitures during the period	0
Exercised	56,059		0	0	0
Exercise price	$ 0.58	$ 0.59	$ 0.59	$ 0.59
Stock based compensation expense			$ 45	$ 113	$ 151
Outstanding intrinsic value			0
Exercisable intrinsic value			0
Unrecognized compensation cost			$ 33
Unrecognized compensation cost, recognition period				4 months 10 days
Stock option | 2017 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants during the period			1,116,101	1,569,676	2,665,921
Forfeitures during the period				1,323,787	66,253
Exercise price	$ 0.92		$ 0.92	$ 0.92	$ 0.92
Expiration period	10 years		10 years
Stock based compensation expense	$ 38,800		$ 0	$ 0
Weighted average grant date fair value of options granted			$ 0.61
Unrecognized compensation cost	$ 4,500		$ 236
Unrecognized compensation cost, recognition period	4 years

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current Income Tax Expense:
State and local			$ 10	$ 11	$ 3
Total Current Income Tax Expense			10	11	3
Deferred Income Tax Expense:
Total Income Tax Expense	$ 0	$ 5	$ 10	$ 11	$ 3

Income Taxes - Deferred income

Income Taxes - Deferred income taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred Tax Assets:
Net operating losses	$ 7,042	$ 5,881
Accrued expenses	109
Unearned premiums	466
Contract expense	332	262
Intangible assets	204
Other	406	809
Total deferred tax assets	8,559	6,952
Less: valuation allowance	$ (8,559)	(6,910)	$ (3,986)	$ (2,008)
Net Deferred Tax Assets		42
Deferred Tax Liabilities
Fixed assets		(42)
Total deferred tax liabilities		(42)
Net Deferred Tax Liabilities		$ 42

Income Taxes - Valuation allowa

Income Taxes - Valuation allowance (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes
January 1,	$ 6,910	$ 3,986	$ 2,008
Additions - Charged	1,649	2,924	1,731
Other			247
December 31,	$ 8,559	$ 6,910	$ 3,986

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes
Net operating loss carryforwards	$ 29,200
Operating loss carry forward subject to expiration	6,400
Operating loss carry forward indefinitely	$ 22,800
Operating loss carry forward, maximum percentage on taxable income	80.00%
Federal income tax rate ( in percent)	21.00%	21.00%	35.00%

Income Taxes - Income tax expen

Income Taxes - Income tax expense (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes
Loss Before Income Tax Expense	$ (15,022)	$ (1,502)	$ (6,542)	$ (12,667)	$ (6,557)
Income tax benefit at federal statutory rates			(1,372)	(2,660)	(1,377)
State and local income taxes			(79)	(471)	(238)
Investment remeasurement					(126)
Valuation allowances			1,649	2,924	1,731
Change in fair value of redeemable convertible preferred stock tranche obligation			(194)	293	57
Other			6	(75)	(44)
Total Income Tax Expense	$ 0	$ 5	$ 10	$ 11	$ 3
Effective Tax Rate			(0.15%)	(0.09%)	(0.05%)

Net Loss Per Share Attributab_3

Net Loss Per Share Attributable to Common Stockholders - Schedule of basic and diluted net loss per share attributable to common stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Numerator:
Net loss	$ (15,022)	$ (1,507)	$ (6,552)	$ (12,678)	$ (6,560)
Denominator:
Weighted average shares outstanding, basic and diluted	100,817,385	58,621,041
Net loss per share attributable to common stockholders, basic and diluted	$ (0.15)	$ (0.03)	$ (0.11)	$ (0.22)	$ (0.13)

Net Loss Per Share Attributab_4

Net Loss Per Share Attributable to Common Stockholders - Schedule of potentially dilutive securities excluded from the computation of diluted net loss per share (Details) - shares	Jan. 21, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share	640,421	30,732,442	8,490,120	9,866,462	7,992,280	4,486,439
Convertible notes payable
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share			2,918,556
Stock warrants
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share				777,265	699,026	239,121
Stock options outstanding to purchase shares of common stock
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share		6,886,205	4,926,397	5,532,863	4,416,762	4,247,318

Concentrations (Details)

Concentrations (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Concentrations
Concentration Risk Percentage	10.00%	10.00%
Purchase
Concentrations
Concentration Risk Percentage	10.00%
Purchase | Vendor A
Concentrations
Concentration Risk Percentage			33.00%
Purchase | Vendor B
Concentrations
Concentration Risk Percentage			13.00%	12.00%
Accounts payable
Concentrations
Concentration Risk Percentage	62.00%
Accounts Payable	$ 3,448
Accounts payable | Vendor A
Concentrations
Accounts Payable			$ 2,918
Accounts payable | Vendor B
Concentrations
Accounts Payable			$ 368	$ 257

Subsequent Events (Details)

Subsequent Events (Details)	Oct. 24, 2020USD ($)	Oct. 21, 2020USD ($)	Mar. 31, 2021location	Dec. 31, 2020USD ($)	Mar. 10, 2021USD ($)
Subsequent Event
Number of new locations with hub openings | location			1
Ally Financial
Subsequent Event
Amount of floor plan credit facility					$ 30,000,000
Interest rate of prime rate plus					2.50%
Interest rate of date of agreement					5.75%
Acamar Partners Acquisition Corp
Subsequent Event
Cash-in-trust		$ 309,999,000
Private Investment in Public Equity ("PIPE") proceeds		125,000,000
Net cash received in business combination	$ 315,000,000
Number of new locations with hub openings				3
Acamar Partners Acquisition Corp | Redeemable Convertible Preferred Stock
Subsequent Event
Settlement of debt and equity				$ 17,560,000
Acamar Partners Acquisition Corp | Stock warrants liability
Subsequent Event
Settlement of debt and equity				144,000
Acamar Partners Acquisition Corp | Redeemable convertible preferred stock tranche obligation
Subsequent Event
Settlement of debt and equity				$ 2,832,000
Acamar Partners Acquisition Corp | Convertible notes payable
Subsequent Event
Extinguishment of debt		3,500,000
Acamar Partners Acquisition Corp | Paycheck Protection Program loan
Subsequent Event
Extinguishment of debt		1,749,000
Acamar Partners Acquisition Corp | Promissory note
Subsequent Event
Extinguishment of debt		$ 3,000,000

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 74,362	$ 2,208
Restricted cash	227	605
Marketable securities - at fair value	173,644	1,032
Accounts receivable, net	9,324	4,132
Inventories	9,311	11,202
Other current assets	6,655	6,679
Total Current Assets	273,523	25,858
Marketable securities - at fair value	44,780	0
Property and equipment, net	2,349	1,868
Capitalized website and internal-use software costs, net	2,554	0
Lease vehicles, net	58	173
Other assets	3,337	299
Total Assets	326,601	28,198
Current Liabilities:
Long-term debt, current	55	6,370
Floor plan notes payable	4,125	6,039
Accounts payable	9,423	6,283
Accrued transaction expenses	0	6,052
Accrued expenses	11,150	3,563
Accrued expenses - related party	0	5,082
Other current liabilities	815	256
Total Current Liabilities	25,568	33,645
Long-term debt, less current portion	1,250	2,999
Redeemable convertible preferred stock tranche obligation	0	2,832
Earnout shares liability	42,438	0
Merger warrant liability	26,667	0
Other liabilities	1,570	1,959
Total Liabilities	97,493	41,435
Commitments and Contingencies (Note 15)
Redeemable Convertible Preferred Stock:
Series A Preferred Stock $0.001 stated value; authorized 3,052,127 shares; after recapitalization there are no preferred shares issued or outstanding at March 31, 2021 and December 31, 2020	0	0
Stockholders' Equity (Deficit):
Common stock, $0.0001 par value; 500,000,000 authorized shares, 113,670,060 and 58,621,042 shares issued and outstanding at March 31, 2021 and December 31, 2020	11	6
Additional paid-in capital	278,272	20,779
Accumulated deficit	(49,059)	(34,037)
Accumulated other comprehensive income (loss)	(116)	15
Total Stockholders' Equity (Deficit)	229,108	(13,237)
Total Liabilities, Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit)	$ 326,601	28,198
Series A Preferred Stock
Current Liabilities:
Accrued expenses - related party		331
Redeemable Convertible Preferred Stock:
Series A Preferred Stock $0.001 stated value; authorized 3,052,127 shares; after recapitalization there are no preferred shares issued or outstanding at March 31, 2021 and December 31, 2020		$ 0

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical)	Mar. 31, 2021USD ($)$ / sharesshares
Common stock par value (in dollars per share) | $ / shares	$ 0.0001
Common stock authorized	500,000,000
Common stock issued	113,670,060
Common stock outstanding	113,670,060
Treasury stock par value (in dollars per share)	0.001
Treasury stock, issued	0
Treasury stock, outstanding	0
Series A Preferred Stock
Preferred stock par value (in dollars per share) | $ / shares	$ 0.001
Preferred stock authorized	3,052,127
Preferred stock issued	0
Preferred stock outstanding	0

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Finance and insurance, net	$ 1,554	$ 892
Lease income, net	107	145
Total Revenues	56,612	25,390
Cost of sales (exclusive of depreciation)	54,604	22,918
Gross Profit	2,008	2,472
Operating Expenses:
Selling, general and administrative	18,873	3,916
Stock-based compensation expense	41,963	34
Depreciation and amortization expense	383	100
Management fee expense - related party	2	62
Total Operating Expenses	61,221	4,112
Loss from Operations	(59,213)	(1,640)
Interest Expense	175	149
Other Income, net
Change in fair value of Merger warrants liability	12,358	13
Change in fair value of redeemable convertible preferred stock tranche obligation	0	284
Change in fair value of earnout provision	31,846	0
Other income	162	3
Total Other Income , net	44,366	287
Loss Before Income Tax Expense	(15,022)	(1,502)
Income tax expense	0	5
Net Loss	$ (15,022)	$ (1,507)
Net Loss per Share, basic and diluted	$ (0.15)	$ (0.03)
Weighted-average Shares used in Computing Net Loss per Share, basic and diluted	100,817,385	58,621,041
Retail vehicle sales
Revenues:
Total Revenues	$ 50,383	$ 21,042
Cost of sales (exclusive of depreciation)	48,917	19,555
Gross Profit	1,466	1,487
Wholesale vehicle sales
Revenues:
Total Revenues	4,568	3,311
Cost of sales (exclusive of depreciation)	5,687	3,363
Gross Profit	$ (1,119)	$ (52)

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Consolidated Statements of Comprehensive Income (Loss)
Net loss	$ (15,022)	$ (1,507)	$ (6,552)	$ (12,678)	$ (6,560)
Other Comprehensive Income (Loss), net of tax:
Unrealized gains (losses) on marketable securities arising during the period	(131)	7	16	0
Tax effect			0	0
Unrealized gains (losses) on marketable securities arising during the period, net of tax	(131)	7	16	0
Reclassification adjustment for realized losses		(3)	(1)	0
Tax effect			0	0
Reclassification adjustment for realized losses, net of tax		(3)	(1)	0
Other Comprehensive Income (Loss), net of tax	(131)	4	15	0
Total Comprehensive Income (Loss)	$ (15,153)	$ (1,503)	$ (6,537)	$ (12,678)	$ (6,560)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Redeemable Convertible Preferred StockRetroactive application of recapitalization	Redeemable Convertible Preferred StockPreviously Reported	Redeemable Convertible Preferred Stock	Common StockRetroactive application of recapitalization	Common StockAdjusted balance	Common StockPreviously Reported	Common Stock	Additional Paid-in CapitalRetroactive application of recapitalization	Additional Paid-in CapitalAdjusted balance	Additional Paid-in CapitalPreviously Reported	Additional Paid-in Capital	Accumulated DeficitAdjusted balance	Accumulated DeficitPreviously Reported	Accumulated Deficit	Accumulated Other Comprehensive Income	Retroactive application of recapitalization	Adjusted balance	Previously Reported	Total
Balance at beginning at Dec. 31, 2017		$ 8,670				$ 4	$ 5			$ 7,389	$ 16,058		$ (8,247)	$ (8,247)				$ (854)	$ 7,816
Balance at beginning (in shares) at Dec. 31, 2017		1,220,851				37,881,435	50,325,203
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss														(6,560)					(6,560)
Accrued dividends on redeemable convertible preferred stock											(1,014)								(1,014)
Stock-based compensation											151								151
Balance at ending at Dec. 31, 2018		$ 8,670				$ 4	$ 5			6,526	15,195		(14,807)	(14,807)				$ (8,277)	$ 393
Balance at ending (in shares) at Dec. 31, 2018		1,220,851					50,325,203											37,881,435	50,325,203
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss														(12,678)					$ (12,678)
Other comprehensive income, net of tax																			0
Redeemable convertible preferred stock issuance			$ 8,890
Redeemable convertible preferred stock issuance (in shares)			813,900
Accrued dividends on redeemable convertible preferred stock											(1,579)								(1,579)
Settlement of redeemable convertible preferred stock tranche obligation																			(902)
Stock-based compensation											113								113
Balance at ending at Dec. 31, 2019	$ (17,560)	$ 17,560		$ 2	$ 6	$ 4	$ 6	$ 17,558	$ 22,618	5,060	22,618	$ (27,485)	(27,485)	(27,485)		$ 17,560	$ (4,861)	$ (22,421)	$ (4,861)
Balance at ending (in shares) at Dec. 31, 2019	(2,034,751)	2,034,751		20,739,607	58,621,042	37,881,435	58,621,042												58,621,042
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss														(1,507)					$ (1,507)
Other comprehensive income, net of tax																			4
Redeemable convertible preferred stock issuance															$ 4				4
Accrued dividends on redeemable convertible preferred stock											(456)								(456)
Consideration to existing shareholders of Former CarLotz, net of accrued dividends																			0
Transaction costs and advisory fees																			0
Stock-based compensation											34								34
KAR/AFC conversion of notes payable																			0
KAR/AFC warrant exercise																			0
Balance at ending at Mar. 31, 2020			$ 0				$ 6				22,196			(28,992)	4				(6,786)
Balance at ending (in shares) at Mar. 31, 2020			0				58,621,042
Balance at beginning at Dec. 31, 2019	$ (17,560)	$ 17,560		$ 2	$ 6	$ 4	$ 6	17,558	22,618	5,060	22,618	(27,485)	(27,485)	(27,485)		17,560	(4,861)	(22,421)	$ (4,861)
Balance at beginning (in shares) at Dec. 31, 2019	(2,034,751)	2,034,751		20,739,607	58,621,042	37,881,435	58,621,042												58,621,042
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss														(6,552)					$ (6,552)
Other comprehensive income, net of tax															15				15
Accrued dividends on redeemable convertible preferred stock											(1,884)								(1,884)
Stock-based compensation											45								45
Balance at ending at Dec. 31, 2020	$ (17,560)	$ 17,560		$ 2	$ 6	$ 4	$ 6	$ 17,558	$ 20,779	$ 3,221	20,779	$ (34,037)	$ (34,037)	(34,037)	$ 15	$ 17,560	$ (13,237)	$ (30,797)	(13,237)
Balance at ending (in shares) at Dec. 31, 2020	(2,034,751)	2,034,751		20,739,607	58,621,042	37,881,435	58,621,042
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss														(15,022)					(15,022)
Other comprehensive income, net of tax																			(131)
Accrued dividends on redeemable convertible preferred stock											(19)								(19)
PIPE issuance							$ 1				124,999								125,000
PIPE issuance (in shares)							12,500,000
Merger financing							$ 4				309,995								309,999
Merger financing (in shares)							38,194,390
Consideration to existing shareholders of Former CarLotz, net of accrued dividends											(62,693)								(62,693)
Transaction costs and advisory fees											(47,579)								(47,579)
Settlement of redeemable convertible preferred stock tranche obligation											2,832								2,832
Cashless exercise of options (in shares)							54,717
Cash consideration paid to Former Carlotz optionholders											(2,465)								(2,465)
Stock-based compensation											41,963								41,963
Earnout liability											(74,284)								(74,284)
Merger warrants liability											$ (39,025)								(39,025)
KAR/AFC conversion of notes payable																			$ (3,625)
KAR/AFC note payable conversion (in shares)							3,546,984				3,625,000								3,625,000
KAR/AFC warrant exercise											$ 144								$ 144
KAR/AFC warrant exercise (in shares)							752,927
Balance at ending at Mar. 31, 2021			$ 0				$ 11				$ 278,272			$ (49,059)					$ 229,108
Balance at ending (in shares) at Mar. 31, 2021			0				113,670,060

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows from Operating Activities
Net loss	$ (15,022)	$ (1,507)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation - property and equipment	105	51
Amortization and accretion - marketable securities	238	0
Depreciation - lease vehicles	15	49
Loss on marketable securities	0	13
Provision for doubtful accounts	0	6
Stock-based compensation expense	41,963	34
Change in fair value of Merger warrants liability	(12,358)	(13)
Change in fair value of earnout shares	(31,846)	0
Change in fair value of debt issuance costs and stock warrant	0	5
Change in fair value of redeemable convertible preferred stock tranche obligation	0	(284)
Change in Operating Assets and Liabilities:
Accounts receivable	(5,192)	1,177
Inventories	1,991	1,790
Other current assets	(5,868)	8
Other assets	(3,038)	9
Accounts payable	3,140	(325)
Accrued expenses	6,187	(54)
Accrued expenses - related party	(229)	(50)
Other current liabilities	559	67
Other liabilities	(245)	150
Net Cash (Used in)/Provided by Operating Activities	(19,600)	1,126
Cash Flows from Investing Activities
Purchase of property and equipment	(586)	(10)
Capitalized website and internal-use software costs	(1,154)	0
Purchase of marketable securities	(217,689)	(421)
Proceeds from sales of marketable securities	59	18
Purchase of lease vehicles	0	(246)
Net Cash Used in Investing Activities	(219,486)	(659)
Cash Flows from Financing Activities
Payments made on long-term debt	0	(2)
PIPE Issuance	125,000	0
Merger financing	309,999	0
Payment made on accrued dividends	(4,853)	0
Payments to existing shareholders of Former CarLotz	(62,693)	0
Transaction costs and advisory fees	(47,579)	0
Payments made on cash considerations associated with stock options	(2,465)	0
Repayment of Paycheck Protection Program loan	(3,000)	0
Payments made on note payable	(1,749)	0
Payments on floor plan notes payable	(11,150)	(8,847)
Borrowings on floor plan notes payable	9,236	7,139
Net Cash Provided by/(Used in) Financing Activities	310,746	(1,710)
Net Change in Cash and Cash Equivalents Including Restricted Cash	71,776	(1,243)
Cash and cash equivalents and restricted cash, beginning	2,813	4,102
Cash and cash equivalents and restricted cash, ending	74,589	2,859
Supplemental Disclosure of Cash Flow Information
Cash paid for interest	402	165
Supplementary Schedule of Non-cash Investing and Financing Activities:
Transfer from lease vehicles to inventory	100	199
Redeemable convertible preferred stock distributions accrued	0	457
KAR/AFC exercise of stock warrants	(144)	0
KAR/AFC conversion of notes payable	(3,625)	0
Convertible redeemable preferred stock tranche obligation expiration	(2,832)	0
Capitalized website and internal use software costs accrued	(1,400)	$ 0
Settlement of redeemable convertible preferred stock tranche obligation	$ 2,832

Description of Business_2

Description of Business	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Description of Business
Description of Business	Note 1 Description of Business Defined Terms Unless otherwise indicated or unless the context otherwise requires, the following terms used herein shall have the following meanings: · references to “CarLotz,” “we,” “us,” “our” and the “Company” are to CarLotz, Inc. and its consolidated subsidiaries; · references to “Acamar Partners” refer to the Company for periods prior to the consummation of the Merger referred to below; · references to “Acamar Sponsor” are to Acamar Partners Sponsor I LLC; and · references to the “Merger” are to the previously announced merger pursuant to that certain Agreement and Plan of Merger, dated as of October 21, 2020 (as amended by Amendment No. 1, dated December 16, 2020, the “Merger Agreement”), by and among CarLotz, Inc. (f/k/a Acamar Partners Acquisition Corp.) (the “Company”), Acamar Partners Sub, Inc., a wholly owned subsidiary of CarLotz, Inc. (“Merger Sub”), and CarLotz Group, Inc. (f/k/a CarLotz, Inc.) (“Former CarLotz”), pursuant to which Merger Sub merged with and into Former CarLotz, with Former CarLotz surviving as the surviving company and as a wholly owned subsidiary of the Company. The Company is a used vehicle consignment and retail remarketing company based in Richmond, Virginia. The Company offers an innovative and one-of-a-kind consumer and commercial used vehicle consignment and sales business model, with an online marketplace and eleven retail hub locations throughout the United States, including in Florida, Illinois, North Carolina, Texas, Virginia, Tennessee and Washington State. Subsidiaries are consolidated when the parent is deemed to have control over the subsidiaries’ operations. Subsidiary Operations CarLotz, Inc. owns 100% of CarLotz Group, Inc. (a Delaware corporation), which owns 100% of Orange Grove Fleet Solutions, LLC (a Virginia LLC), 100% of Orange Peel Protection Reinsurance Co. Ltd. (a Turks and Caicos Islands, British West Indies company) and 100% of Orange Peel LLC (a Virginia LLC), which owns 100% of Orange Peel Reinsurance, Ltd. (a Turks and Caicos Islands, British West Indies company). Basis of Presentation On January 21, 2021, (the “Closing Date”), the Company consummated the previously announced merger pursuant to that certain Agreement and Plan of Merger, dated as of October 21, 2020, by and among the Company, Merger Sub and Former CarLotz, as amended by Amendment No,. 1 to the Agreement and Plan of Merger, dated December 16, 2020, by and among the Company, Merger Sub and Former CarLotz. (See Note 3 “Merger” for further discussion). Pursuant to the terms of the Merger Agreement, a business combination between the Company and Former CarLotz was effected through the merger of Merger Sub with and into Former CarLotz surviving as the surviving company. Notwithstanding the legal form of the Merger pursuant to the Merger Agreement, the Merger is accounted for as a reverse recapitalization in accordance with U.S. GAAP. Under this method of accounting, CarLotz is treated as the acquired company and Former CarLotz is treated as the acquiror for financial statement reporting and accounting purposes. As a result of Former CarLotz being the accounting acquirer, the financial reports filed with the SEC by the Company subsequent to the Merger are prepared “as if” Former CarLotz is the predecessor and legal successor to the Company. The historical operations of Former CarLotz are deemed to be those of the Company. Thus, the financial statements included in this report reflect (i) the historical operating results of Former CarLotz prior to the Merger, (ii) the combined results of the Company and Former CarLotz following the Merger on January 21, 2021, (iii) the assets and liabilities of Former CarLotz at their historical cost and (iv) the Company’s equity structure for all periods presented. The recapitalization of the number of shares of common stock attributable to the purchase of Former CarLotz in connection with the Merger is reflected retroactively to the earliest period presented and will be utilized for calculating earnings per share in all prior periods presented. No step-up basis of intangible assets or goodwill was recorded in the Merger transaction consistent with the treatment of the transaction as a reverse recapitalization of Former CarLotz. In connection with the Merger, Acamar Partners Acquisition Corp. changed its name to CarLotz, Inc. The Company’s common stock is now listed on The Nasdaq Global Market under the symbol “LOTZ” and warrants to purchase the common stock at an exercise price of $11.50 per share are listed on The Nasdaq Global Market under the symbol “LOTZW”. Prior to the Merger, the Company neither engaged in any operations nor generated any revenue. Until the Merger, based on the Company’s business activities, it was a “shell company” as defined under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The accompanying interim condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (U.S. GAAP) and applicable rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and note disclosures normally included in annual financial statements have been condensed or omitted pursuant to such rules and regulations. Therefore, these interim condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and related notes of Former CarLotz as of December 31, 2020 and 2019 and for the years ended December 31, 2020, 2019 and 2018 (audited consolidated financial statements) contained herein. The condensed consolidated balance sheet as of December 31, 2020, included herein, was derived from the audited consolidated financial statements of Former CarLotz as of that date contained herein. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements, and in management’s opinion, include all adjustments, which consist of only normal recurring adjustments necessary for the fair statement of the Company’s condensed consolidated balance sheet as of March 31, 2021 and its results of operations for the three months ended March 31, 2021 and 2020. The results for the three months ended March 31, 2021 are not necessarily indicative of the results expected for the current fiscal year or any other future periods.	Note 1 — Description of Business CarLotz, Inc. (now known as CarLotz Group, Inc.) and its wholly-owned subsidiaries (collectively, the “Company”) is a used vehicle consignment and automotive retailer company based in Richmond, Virginia. The Company offers an innovative and one-of-a-kind consumer and commercial used vehicle consignment and sales business model, with an online marketplace and ten retail hub locations throughout the United States, including in Florida, Illinois, North Carolina, Texas, Virginia and Washington. The Company was formed as a Delaware corporation and commenced operations in 2011. Subsidiaries are consolidated when the parent is deemed to have control over the subsidiaries’ operations. Investments in which the Company has the ability to exercise significant influence, but does not have a controlling interest, are accounted for using the equity method. Unless the context otherwise requires, references to "we," "us," "our," and the "Company" refer to the Company and its consolidated subsidiaries prior to the consummation of the Merger. See Note 24 — Subsequent Events for additional detail on the Acamar Partners Acquisition Corp. Merger. Subsidiary Operations The Company owns 100% of Orange Grove Fleet Solutions, LLC (a Virginia LLC), 100% of Orange Peel Protection Reinsurance Co. Ltd. (a Turks and Caicos Islands, British West Indies company) and 100% of Orange Peel LLC (a Delaware LLC), which owns 100% of Orange Peel Reinsurance, Ltd. (a Turks and Caicos Islands, British West Indies company). Orange Grove Fleet Solutions, LLC (“Orange Grove”) Orange Grove is primarily engaged in the leasing of fleet vehicles to commercial customers and was originally established as a joint venture with a third party to expand Orange Grove’s products to the Company’s customer base. On September 13, 2018, Orange Grove redeemed the 80% membership interest of its majority member (the “redemption”). Prior to the redemption, the Company had a 20% membership interest in Orange Grove and accounted for its investment using the equity method. As a result of the redemption, the Company became the sole member of Orange Grove. Accordingly, the Company accounted for the redemption as a business combination (step-acquisition with no consideration transferred) using the acquisition method of accounting under Accounting Standards Codification (“ASC”) 805 Business Combinations . The net assets acquired and liabilities assumed as of September 13, 2018 were not material. In accordance with ASC 805, the Company remeasured its 20% membership interest in Orange Grove at its acquisition date fair value and used the acquisition date fair value of its remeasured interest in determining the fair value of the consideration transferred when applying the acquisition method of accounting. The result of the remeasurement and application of acquisition method of accounting was an immaterial gain on the transaction that is recorded in Other income (expense) in the consolidated statements of operations. Subsequent to the redemption of the majority member interest, the Company consolidated Orange Grove. The results of operations of Orange Grove since September 13, 2018 are included in the Company’s consolidated statements of operations. The revenues and results of operations attributable to Orange Grove for the period from the date of acquisition, September 13, 2018, through December 31, 2018 were immaterial. The impact on the Company’s revenues and net loss for purposes of pro forma statements of operations for the year ended December 31, 2018 were immaterial.

Summary of Significant Accoun_5

Summary of Significant Accounting Policies	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 2 — Summary of Significant Accounting Policies For a detailed discussion about the Company’s significant accounting policies and for further information on accounting updates adopted in the prior year, see Note 2 to the audited consolidated financial statements. During the three months ended March 31, 2021, there were no significant revisions to the Company’s significant accounting policies, other than those indicated herein. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Following the closing of the Merger, Former CarLotz equity holders at the effective time of the Merger will have the contingent right to receive, in the aggregate, up to 7,500,000 shares of common stock if, from the closing of the Merger until the fifth anniversary thereof, the reported closing trading price of the common stock exceeds certain thresholds. Estimating the change in fair value of the earnout liability for the earnout shares that could be earned Former CarLotz equity holders at the effective time of the Merger requires determining both the fair value valuation model to use and inputs to the valuation model. The fair value of the earnout shares was estimated by utilizing a Monte-Carlo simulation model, which is a commonly used valuation model for this type of transaction. Inputs that have a significant effect on the earnout shares valuation include the expected volatility, starting stock price, expected term, risk-free interest rate and the earnout hurdles. See Note 6 — Fair Value of Financial Instruments. Warrants that were issued by Acamar Partners (Merger warrants) and continue to exist following the closing of the Merger are accounted for as freestanding financial instruments. These warrants are classified as liabilities on the Company’s condensed consolidated balance sheets and are recorded at their estimated fair value. The estimated fair value of the warrants is determined by using the market value in an active trading market. Beginning in the first quarter of 2020, the World Health Organization declared the outbreak and spread of the COVID-19 virus a pandemic. The outbreak is disrupting supply chains and impacting production and sales across a wide range of industries. The full economic impact of this pandemic has not been determined, including the impact on the Company’s suppliers, customers and credit markets. Due to the evolving and uncertain nature of COVID-19, it is reasonably possible that it could materially impact the Company’s estimates, particularly those noted above that require consideration of forecasted financial information, in the near to medium term. The ultimate impact will depend on numerous evolving factors that the Company may not be able to accurately predict, including the duration and extent of the pandemic, the impact of federal, state, local and foreign governmental actions, consumer behavior in response to the pandemic and other economic and operational conditions the Company may face. Restricted Cash As of March 31, 2021 and December 31, 2020, restricted cash included approximately $227 and $605, respectively. The restricted cash is legally and contractually restricted as collateral for two letters of credit issued on behalf of CarLotz Group, Inc. and of the reinsurance companies for the payment of claims. Marketable Securities The Company and its reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of fixed income debt securities. The Company has investments in marketable securities that are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in other income (expense) in the Company’s condensed consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of debt securities are recognized in Accumulated Other Comprehensive Income in the Company’s condensed consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company’s net income only when such securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security’s cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company’s marketable securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issue and the Company’s intent to sell, or whether it is more likely than not the Company will be required to sell the investment before recovery of the investment’s amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these securities, the Company will write down these investments to fair value through earnings. Capitalized website and internal-use software costs The Company capitalizes costs associated with customized internal-use software systems that have reached the application development stage. Such capitalized costs include external direct costs utilized in developing or obtaining the applications and payroll and payroll-related expenses for employees who are directly associated with the applications. Capitalization of such costs begins when the preliminary project stage is complete and ceases at the point in which the project is substantially complete and ready for its intended purpose. Amortization is computed using the straight-line method over 3 years. Advertising Costs The Company expenses advertising costs as they are incurred. Advertising costs are included in selling, general and administrative expenses on the accompanying condensed consolidated statements of operations. Advertising expenses were approximately $2,526 and $541 for the three months ended March 31, 2021 and 2020, respectively. Concentration of Credit Risk Concentrations of credit risk with respect to accounts receivables are limited due to the large diversity and number of customers comprising the Company’s customer base. Recently Issued Accounting Pronouncements In January 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . Subsequently, the FASB issued ASU 2018-03, Technical Corrections and Improvements to Financial Instruments-Overall. ASU 2016-01 requires equity investments except those under the equity method of accounting to be measured at fair value with the changes in fair value recognized in net income. ASU 2016-01 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2018, and interim periods within annual periods beginning after December 15, 2019. The Company adopted ASU 2016-01 on January 1, 2019 for annual periods and on January 1, 2020 for interim periods within annual periods. The adoption of ASU 2016-01 did not have a material impact on the Company’s condensed consolidated financial statements because the Company did not make its first investment in securities impacted by the standard until the first quarter of the year ending December 31, 2021. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The standard will affect all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases, to clarify how to apply certain aspects of the new leases standard. ASU 2016-02, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, and early adoption is permitted. For leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, lessees and lessors must apply a modified retrospective transition approach. While the Company expects the adoption of this standard to result in an increase to the reported assets and liabilities, it has not yet determined the full impact the adoption of this standard will have on its financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. ASU 2016-13, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates for fiscal years beginning after December 15, 2022 and for interim periods within those fiscal years. The Company is currently evaluating the impact of this standard to its financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement ( Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. The Company adopted ASU 2018-13 on January 1, 2020 and the adoption of this standard did not have a material impact on the condensed consolidated financial statements or related disclosures. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other- Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company adopted ASU 2018-15 on January 1, 2020 for annual periods, and the adoption of this standard did not have a material impact on the condensed consolidated financial statements or related disclosures. In October 2018, the FASB issued ASU 2018-17, Consolidation (Topic 810), Targeted Improvements to Related Party Guidance for Variable Interest Entities , which addresses the cost and complexity of financial reporting associated with consolidation of variable interest entities (“VIE”). The new guidance must be applied on a retrospective basis as a cumulative-effect adjustment as of the date of adoption. The Company adopted ASU 2018-17 on January 1, 2020, and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures because the Company does not currently have any indirect interests through related parties under common control for which it receives decision making fees. In December 2020, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which is intended to simplify various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019-12 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the impact of this standard on its financial statements.	Note 2 — Summary of Significant Accounting Policies Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). Principles of Consolidation The consolidated financial statements include the accounts of CarLotz, Inc. (now known as CarLotz Group, Inc.) and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Estimating the change in fair value of the liability for stock warrants requires determining both the fair value valuation model to use and inputs to the valuation model. The stock warrants liability is valued using the Black Scholes pricing model, which is a commonly used valuation model for this type of financial instrument. Inputs that have a significant effect on the stock warrants liability valuation include the expected life of the stock warrants, the fair value per share of the Company’s common stock, volatility of the Company’s common stock fair value and related dividend yield. See Note 6 — Fair Value of Financial Instruments and Note 12 — Long-term Debt for additional detail. The fair value of the obligation to purchase future tranches of Series A Redeemable Convertible Preferred Stock (“Series A Preferred Stock”) was estimated by utilizing the Black Scholes pricing model and included the impact of the lack of marketability of the instruments. The key inputs for the fair value measurement include the fair value per share of the Company’s Series A Preferred Stock, expected volatility, the remaining years to liquidity and the risk-free interest rate. The most significant input impacting the fair value of the Series A Preferred Stock tranche obligation is the fair value of the Series A Preferred Stock as of each remeasurement date. The determination of the fair value per share of the redeemable convertible preferred stock is estimated by taking into consideration the most recent sales of redeemable convertible preferred stock, results obtained from third-party valuations and additional factors that are deemed relevant. As a private company, there was a lack of Company-specific historical and implied volatility information of the Company’s Series A Preferred Stock. Therefore, estimates of expected stock volatility are based on the historical volatility of publicly traded peer companies for a term equal to the remaining contractual term of the obligations. The risk-free interest rate was determined by reference to the U.S. Treasury yield curve for time periods approximately equal to the remaining years to liquidity. See Note 6 — Fair Value of Financial Instruments and Note 19 — Redeemable Convertible Preferred Stock for additional detail. Beginning in the first quarter of 2020, the World Health Organization declared the outbreak and spread of the COVID-19 virus a pandemic. The outbreak is disrupting supply chains and impacting production and sales across a wide range of industries. The full economic impact of this pandemic has not been determined, including the impact on the Company's suppliers, customers, and credit markets. Due to the evolving and uncertain nature of COVID-19, it is reasonably possible that it could materially impact the Company's estimates, particularly those noted above that require consideration of forecasted financial information, in the near to medium term. The ultimate impact will depend on numerous evolving factors that the Company may not be able to accurately predict, including the duration and extent of the pandemic, the impact of federal, state, local, and foreign governmental actions, consumer behavior in response to the pandemic and other economic and operational conditions the Company may face. Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments that are due on demand or have a remaining maturity of three months or less at the date of purchase. The Company places its cash with financial institutions and has balances that generally exceed federally insured amounts. Restricted Cash As of December 31, 2020 and 2019, restricted cash was approximately $605 and $888, respectively. The restricted cash is legally and contractually restricted as collateral for two letters of credit issued on behalf of the Company and of the reinsurance subsidiaries for the payment of claims. Marketable Securities The Company's reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of equity and fixed income debt securities. The Company's investments in marketable securities are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in other income (expense) in the Company's consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of available-for-sale debt securities are recognized in Accumulated Other Comprehensive Income in the Company's consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company's net income only when such debt securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security's cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company's marketable debt securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its fixed maturity debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issuer and the Company's intent to sell, or whether it is more likely than not the Company will be required to sell the debt security before recovery of the investment's amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these debt securities, the Company will write down these debt securities to fair value through earnings. Accounts Receivable, Net Accounts receivable consist primarily of contracts in transit that represent amounts due from financial institutions on retail installment contracts from retail vehicle sales, and also includes receivables related to wholesale vehicle sales. Concentration of Credit Risk Concentrations of credit risk with respect to accounts receivables are limited due to the large diversity and number of customers comprising the Company’s customer base. Inventories All inventories, which are comprised of vehicles and parts held for sale, are reported at the lower of cost or net realizable value. Cost of vehicle inventory is determined on a specific identification basis. Vehicles held on consignment are not recorded in the Company’s inventory balance, as title to those vehicles, and, therefore control of the vehicle, remain with the consignors until a customer purchases the vehicle and the vehicle is delivered. Property and Equipment Property and equipment are stated at cost. Expenditures for maintenance, repairs and minor renewals are charged to expense as incurred. Major renewals and betterments are capitalized. Property held under capital leases are stated at the present value of minimum lease payments less accumulated amortization. Property held under capital leases are amortized using the straight-line method over the shorter of the lease term or estimated useful life of the asset. Depreciation on owned property and equipment is calculated using the straight-line method over the estimated useful lives of the assets as follows: Leasehold Improvements Lesser of 15 years or underlying lease terms Equipment, Furniture and Fixtures 1 — 5 years Corporate Vehicles 5 years Lease Vehicles, net The Company leases vehicles to customers with lease terms that are typically 1 – 4 years. The leases are accounted for as operating leases. Lease income is recorded on a straight line basis over the period the vehicle is rented. Depreciation on the lease vehicles is calculated using the straight-line method over the estimated useful life. Reinsurance — Deferred Acquisition Costs The Company defers certain costs of acquiring new contracts. These costs are limited to incremental direct costs that result from the successful acquisition of new contracts and would not have been incurred, had the acquisition of the contract not occurred. Deferred acquisition costs (“DAC”) consist primarily of amounts paid for ceding fees and premium taxes and are amortized over the term of the contracts in relation to premiums earned. Acquisition costs that do not result in the successful acquisition of new contracts, or that would have been incurred even if a new contract was not acquired, are expensed as incurred. DAC are included in other assets on the consolidated balance sheets. Floor Plan Notes Payable The Company classifies notes payable for inventory purchased as “Floor plan notes payable” on the accompanying consolidated balance sheets. The Company presents borrowings and repayments on Floor plan notes payable within Cash flows from financing activities on the consolidated statements of cash flows because the Company uses a third-party lender for its floor plan financing arrangement. Classification and Accretion of Redeemable Convertible Preferred Stock The Company has previously classified its Series A Preferred Stock outside of stockholders’ equity (deficit) because the shares contained certain redemption features that were not solely within the control of the Company. Costs incurred in connection with the issuance of Series A Preferred Stock, as well as the recognition of the redeemable convertible preferred stock tranche obligation, are recorded as a reduction of gross proceeds from issuance. The Series A Preferred Stock was not redeemable as of the periods of these financial statements because while the holders of the Series A Preferred Stock had the power to direct the Company’s actions through its control of the Company’s board of directors, the deemed liquidation provision is considered a substantive condition that was contingent on the identification of a market participant willing to purchase the Company’s assets for consideration in an amount sufficient to distribute the redemption amount to the holders of the Series A Preferred Stock. Since the Series A Preferred Stock was not currently redeemable and it was not currently probable that it would become redeemable because a change of control feature is not considered probable until the change of control actually occurs, the net carrying value of Series A Preferred Stock was not accreted to its redemption value. See Note 19 — Redeemable Convertible Preferred Stock for additional details. See Note 3 — Reverse Recapitalization for the impact of the reverse recapitalization on the redeemable convertible preferred stock. Reinsurance — Contract Reserves The Company sells certain finance and insurance contracts that are underwritten by third parties. The Company, through its reinsurance subsidiaries, reinsures those contracts, thereby assuming the risk of loss on the underlying insurance contracts. The Company establishes insurance reserves in accordance with ASC 944, Financial Services — Insurance . These amounts are recorded as Other liabilities on the consolidated balance sheets. Contract Reserves Subsequent to the sale of a vehicle to a customer, the Company sells the related retail installment contracts to financial institutions on a non-recourse basis. The Company receives commissions from the financial institutions for these sales. The Company also receives commissions from other third-party providers for the arrangement of the sale of other products such as guaranteed vehicle protection insurance. The Company is subject to future chargebacks in the event of an early contract termination or payoff by customers. A reserve for future amounts estimated to be charged back is recorded as a reduction of Finance and insurance, net in the consolidated statements of operations, at the time of sale. The chargeback reserve is estimated based on the Company’s historical chargeback results and is recorded in Other liabilities on the consolidated balance sheets. Legal Contingencies The Company is involved in various claims and legal proceedings that arise in the normal course of business. The Company records an accrual for legal contingencies when it determines that it is probable that it has incurred a liability and it can reasonably estimate the amount of the loss. See Note 18 — Commitments and Contingencies for additional details. Fair Value Measurements Fair value as defined under U.S. GAAP is an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. U.S. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1: Observable inputs such as quoted prices in active markets. Level 2: Inputs other than quoted prices in active markets that are either directly or indirectly observable. Level 3: Unobservable inputs about which little or no market data exists, therefore requiring an entity to develop its own assumptions. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and affects how the measurement is classified within the fair value hierarchy levels. See Note 6 — Fair Value of Financial Instruments for additional information. Revenues The Company recognizes revenue upon transfer of control of goods or services to customers, in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. Control passes to the retail and wholesale vehicle sales customer when the title is delivered to the customer, who then assumes control of the vehicle. Cost of Sales Cost of sales includes the cost to acquire used vehicles and the related reconditioning costs to prepare the vehicles for resale. Vehicle reconditioning costs include parts, labor, inbound transportation costs, and other costs such as mechanical inspection, vehicle preparation supplies and repair costs. Cost of sales also includes any necessary adjustments to reflect vehicle inventory at the lower of cost or net realizable value. Sales Tax The Company collects and remits sales tax on vehicle sales and sales of parts. Sales tax collected is not included in revenues and remittances are not included in cost of sales. Sales tax collected is recorded as a liability, with the liability relieved upon remittance of payments to tax authorities. Selling, General, and Administrative Expenses Selling, general and administrative expenses primarily include compensation and benefits, advertising, facilities cost, technology expenses, logistics, and other administrative expenses. Advertising costs are expensed as incurred and were $3,199, $3,803, and $1,871 for the years ended December 31, 2020, 2019, and 2018, respectively. Equity-Based Compensation The Company classifies equity-based awards granted in exchange for services as either equity awards or liability awards. The classification of an award as either an equity award or a liability award is generally based upon cash settlement options. Both equity and liability awards are measured based on the fair value of the award at the grant date, however, liability awards are then re-measured to fair value each reporting period. The Company recognizes equity-based compensation on a straight-line basis over the award’s requisite service period, which is generally the vesting period of the award, less actual forfeitures. For equity and liability awards earned based on performance or upon occurrence of a contingent event, when and if the awards will be earned is estimated. If an award is not considered probable of being earned, no amount of equity-based compensation is recognized. If the award is deemed probable of being earned, related equity-based compensation is recorded over the estimated service period. To the extent the estimate of awards considered probable of being earned changes, the amount of equity-based compensation recognized will also change. See Note 20 — Stock-Based Compensation Plan for additional information on equity-based compensation. Redeemable Convertible Preferred Stock Tranche Obligation The Company classified the Series A Preferred Stock tranche obligations for the future purchase, and option to purchase, three additional tranches of Series A Preferred Stock (See Note 6 — Fair Value of Financial Instruments and Note 19 — Redeemable Convertible Preferred Stock for additional detail) as a liability on its consolidated balance sheets as the Series A Preferred Stock tranche obligations were freestanding financial instruments that required the Company to transfer equity instruments upon future closings of the Series A Preferred Stock. The Series A Preferred Stock tranche obligations were initially recorded at fair value upon the date of issuance and were subsequently remeasured to fair value at each reporting date. Changes in the fair value of the Series A Preferred Stock tranche obligation were recognized as a component of Other Income (Expense), net in the consolidated statements of operations. Changes in the fair value of the second Series A Preferred Stock tranche obligations were recognized until the tranche obligations were fulfilled in the first and second quarter of 2019. Income Tax Income taxes are provided for the tax effects of transactions reported in the consolidated financial statements and consist of taxes currently due plus deferred taxes. Deferred taxes are recognized for differences between the basis of assets and liabilities for financial statement and income tax purposes. The differences relate primarily to depreciable assets (use of different depreciation methods and lives for financial statement and income tax purposes), contract expenses, and certain accrued expenses. Deferred tax assets and liabilities represent future tax consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred income taxes are recorded using enacted tax rates based upon differences between financial statement and tax bases of assets and liabilities. A valuation allowance has been established for all deferred tax assets because the Company has incurred cumulative losses in recent years and the Company has not determined that the net deferred tax assets are more likely than not to be realized. In future periods, if the Company determines it is more likely than not that the deferred tax assets will be realized, the valuation allowance may be reduced, and an income tax benefit recorded. Net Loss Per Share Attributable to Common Stockholders Prior to the impact of the retroactive application of the recapitalization, the Company’s redeemable convertible preference shares were participating securities as the holders of the Company’s redeemable convertible preference shares are entitled to participate in dividends with ordinary shares. Net losses were not allocated to the Company’s redeemable convertible preference shares as the holders of the Company’s redeemable convertible preference shares do not have a contractual obligation to share in any losses. Subsequent to the retroactive application of the recapitalization, basic and diluted net loss per share attributable to ordinary shareholders is calculated by dividing net loss attributable to Company’s ordinary shareholders by the weighted-average number of recapitalized ordinary shares outstanding for the period. Diluted earnings per share attributable to common stockholders adjusts basic earnings per share for all potentially dilutive common stock equivalents outstanding during the period. Potentially dilutive securities consisted of stock options, warrants, and convertible notes payable. Since the Company has reported net losses for all periods presented, the Company has excluded all potentially dilutive securities from the calculation of the diluted net loss per share attributable to common stockholders as their effect is antidilutive and accordingly, basic and diluted net loss per share attributable to common stockholders is the same for all periods presented. (See Note 22 — Net Loss Per Share Attributable to Common Stockholders for additional detail) Segments The Company’s chief operating decision maker (“CODM”) is its chief executive officer. The Company derives its revenue primarily from sales of automobiles via retail and wholesale channels. The CODM reviews financial information presented on a consolidated basis for the purposes of allocating resources and evaluating financial performance. Accordingly, the Company determined that it has one reportable segment. Adoption of New Accounting Pronouncements In August 2018, the FASB issued ASU 2018‑13, Fair Value Measurement (Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement , which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. ASU 2018‑13 is effective for all entities for fiscal years beginning after December 15, 2019 and for interim periods within those fiscal years , and early adoption is permitted. An entity is permitted to early adopt either the entire standard or only the provisions that eliminate or modify requirements. The Company adopted ASU 2018-13 on January 1, 2020 and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures. In August 2018, the FASB issued ASU 2018‑15, Intangibles — Goodwill and Other — Internal — Use Software (Subtopic 350‑40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract . This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. ASU 2018‑15 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2019, and interim periods within annual periods beginning after December 15, 2020, with early adoption permitted. The Company adopted ASU 2018-15 on January 1, 2020 for annual periods and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures. In October 2018, the FASB issued ASU 2018‑17, Consolidation (Topic 810), Targeted Improvements to Related Party Guidance for Variable Interest Entities , which addresses the cost and complexity of financial reporting associated with consolidation of variable interest entities (“VIE”). ASU 2018‑17 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2019, and interim periods within annual periods beginning after December 15, 2020, with early adoption permitted. The new guidance must be applied on a retrospective basis as a cumulative-effect adjustment as of the date of adoption. The Company adopted ASU-2018-17 on January 1, 2020 and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures because the Company does not currently have any indirect interests through related parties under common control for which it receives decision making fees. Recently Issued Accounting Pronouncements Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The standard will affect all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases, to clarify how to apply certain aspects of the new leases standard. ASU 2016-02, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, and early adoption is permitted. For leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, lessees and lessors must apply a modified retrospective transition approach. While the Company expects the adoption of this standard to result in an increase to the reported assets and liabilities, it has not yet determined the full impact the adoption of this standard will have on its financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. ASU 2016-13, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates for fiscal years beginning after December 15, 2022 and for interim periods within those fiscal years. The Company is currently evaluating the impact of this standard to the consolidated financial statements. In December 2019, the FASB issued ASU 2019‑12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which is intended to simplify various aspects related to accounting for income taxes. ASU 2019‑12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019‑12 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the impact of this standard to the consolidated financial statements.

Merger

Merger	3 Months Ended
	Mar. 31, 2021
Merger
Merger	Note 3 — Merger On the Closing Date, the Company consummated the previously announced merger pursuant to that certain Agreement and Plan of Merger, dated as of October 21, 2020, by and among the Company, Merger Sub and Former CarLotz, as amended by Amendment No. 1, dated December 16, 2020, by and among the Company, Merger Sub and Former CarLotz. Pursuant to the terms of the Merger Agreement, a business combination between the Company and Former CarLotz was effected through the merger of Merger Sub with and into Former CarLotz with Former CarLotz surviving as the surviving company. The Merger is accounted for as a reverse recapitalization in accordance with GAAP. Under this method of accounting, Acamar Partners was treated as the “acquired” company for financial reporting purposes (See Note 1 — Description of the Business). Accordingly, for accounting purposes, the Merger was treated as the equivalent of Former CarLotz issuing stock for the net assets of Acamar Partners, accompanied by a recapitalization. Prior to the Merger, Former CarLotz and Acamar Partners filed separate standalone federal, state and local income tax returns. As a result of the Merger, structured as a reverse acquisition for tax purposes, Acamar Partners was renamed CarLotz, Inc., and became the parent of the consolidated filing group, with Former CarLotz as a subsidiary. Recapitalization Cash–Acamar Partners’ trust and cash $ 309,999 Cash–PIPE 125,000 Less: consideration delivered to existing shareholders of Former CarLotz (62,693) Less: consideration to pay accrued dividends (4,853) Less: transaction costs and advisory fees paid (47,579) Less: payments on cash considerations associated with stock options (2,465) Net contributions from Merger and PIPE financing 317,409 Liabilities relieved: preferred stock obligation 2,832 Liabilities relieved: KAR/AFC note 3,625 Liabilities relieved: Historic warrant liability: 144 Less: earnout shares liability (74,285) Less: warrants liability (39,025) Merger warrants The following is an analysis of the warrants to purchase shares of the Company’s stock deemed acquired as part of the Merger and outstanding during the three months ended March 31, 2021: March 31, 2021 Stock warrants outstanding–Public 10,185,774 Stock warrants outstanding–Private 6,074,310 Stock warrants cancelled — Stock warrants exercised — Stock warrants outstanding 16,260,084 Earnout Shares Former CarLotz equity holders at the closing of the Merger are entitled to receive up to an additional 6,945,732 earnout shares. The earnout shares will be issued to the beneficiaries if certain targets are met in the post-acquisition period. The earnouts for the earnout shares are subject to an earnout period, which is defined as the date 60 months following the consummation of the Merger. The Merger closed on January 21, 2021 and the earnout period expires January 21, 2026. The earnout shares will be issued if any of the following conditions are achieved following January 21, 2021: i. If at any time during the 60 months following the Closing Date (the first business day following the end of such period, the “Forfeiture Date”), the closing trading price of the common stock is greater than $12.50 over any 20 trading days within any 30 trading day period (the “First Threshold”), the Company will issue 50% of the earnout shares. ii. If at any time prior to the Forfeiture Date, the closing trading price of the common stock is greater than $15.00 over any 20 trading days within any 30 trading day period (the “Second Threshold”), the Company will issue 50% of the earnout shares. iii. If either the First Threshold or the Second Threshold is not met on or before the Forfeiture Date, any unissued earnout shares are forfeited. All unissued earnout shares will be issued if there is a change of control of the Company that will result in the holders of the common stock receiving a per share price equal to or in excess of $10.00 (as equitably adjusted for stock splits, stock dividends, special cash dividends, reorganizations, combinations, recapitalizations and similar transactions affecting the common stock) prior to the Forfeiture Date. Before the contingency is met, the earnout shares will be classified as a liability under the FASB’s Accounting Standards Codification (“ASC”) Topic 815, so changes in the fair value of the earnout shares in future periods will be recognized in the statement of operations. The estimated fair value of the liability is determined by using a Monte-Carlo simulation model.

Revenue Recognition_2

Revenue Recognition	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Revenue Recognition
Revenue Recognition	Note 4 — Revenue Recognition Disaggregation of Revenue The significant majority of the Company’s revenue is derived from contracts with customers related to the sales of vehicles. In the following tables, revenue is disaggregated by major lines of goods and services and timing of transfer of goods and services. The Company has determined that these categories depict how the nature, amount, timing and uncertainty of its revenue and cash flows are affected by economic factors. The tables below include disaggregated revenue under ASC 606 ( Revenue from Contracts with Customers) : Three Months Ended March 31, 2021 Fleet Vehicle Sales Management Total Retail vehicle sales $ 50,383 $ — $ 50,383 Wholesale vehicle sales 4,568 — 4,568 Finance and insurance, net 1,554 — 1,554 Lease income, net — 107 107 Total Revenues $ 56,505 $ 107 $ 56,612 Three Months Ended March 31, 2020 Fleet Vehicle Sales Management Total Retail vehicle sales $ 21,042 $ — $ 21,042 Wholesale vehicle sales 3,311 — 3,311 Finance and insurance, net 892 — 892 Lease income, net — 145 145 Total Revenues $ 25,245 $ 145 $ 25,390 The following table summarizes revenues and cost of sales for retail and wholesale vehicle sales for the three months ended March 31, 2021 and 2020: 2021 2020 Retail vehicles: Retail vehicle sales $ 50,383 $ 21,042 Retail vehicle cost of sales 48,917 19,555 Gross Profit – Retail Vehicles $ 1,466 $ 1,487 Wholesale vehicles: Wholesale vehicle sales $ 4,568 $ 3,311 Wholesale vehicle cost of sales 5,687 3,363 Gross Profit – Wholesale Vehicles $ (1,119) $ (52) Retail Vehicle Sales The Company sells used vehicles to retail customers through its 11 retail hub locations. The transaction price for used vehicles is a fixed amount as set forth in the customer contract, and the revenue recognized by the Company is inclusive of the agreed upon transaction price and any service fees. Customers frequently trade-in their existing vehicle to apply toward the transaction price of a used vehicle. Trade-in vehicles represent noncash consideration, which the Company measures at estimated fair value of the vehicle received on the trade. The Company satisfies its performance obligation and recognizes revenue for used vehicle sales at a point in time when the title to the vehicle passes to the customer, at which point the customer controls the vehicle. The Company receives payment for used vehicle sales directly from the customer at the time of sale or from third-party financial institutions within a short period of time following the sale if the customer obtains financing. The Company’s exchange policy allows customers to initiate an exchange of a vehicle during the first three days or 500 miles after delivery, whichever comes first. An exchange reserve is immaterial based on the Company’s historical activity. Wholesale Vehicle Sales The Company sells wholesale vehicles primarily through auction as wholesale vehicles often do not meet the Company’s standards for retail vehicle sales. The Company satisfies its performance obligation and recognizes revenue for wholesale vehicle sales when the vehicle is sold at auction or directly to a wholesaler and title to the vehicle passes to the customer. Finance and Insurance, net The Company provides customers with options for financing, insurance and extended warranties. Extended warranties are serviced by a company owned by a major shareholder. All other services are provided by third-party vendors, and the Company has agreements with each of these vendors giving the Company the right to offer such services. When a customer selects a service from these third-party vendors, the Company earns a commission based on the actual price paid or financed. The Company concluded that it is an agent for these transactions because it does not control the products before they are transferred to the customer. Accordingly, the Company recognizes finance and insurance revenue at the point in time when the customer enters into the contract.	Note 4 — Revenue Recognition Disaggregation of Revenue The significant majority of the Company’s revenue is from contracts with customers related to the sales of vehicles. In the following tables, revenue is disaggregated by major lines of goods and services and timing of transfer of goods and services. The Company has determined that these categories depict how the nature, amount, timing, and uncertainty of its revenue and cash flows are affected by economic factors. The tables below include disaggregated revenue under ASC 606: 2020 Fleet Vehicle Sales Management Total Retail vehicle sales $ 104,253 $ — $ 104,253 Wholesale vehicle sales 9,984 — 9,984 Finance and insurance, net 3,898 — 3,898 Lease income, net — 490 490 Total Revenues $ 118,135 $ 490 $ 118,625 2019 Fleet Vehicle Sales Management Total Retail vehicle sales $ 90,382 $ — $ 90,382 Wholesale vehicle sales 8,454 — 8,454 Finance and insurance, net 3,117 — 3,117 Lease income, net — 533 533 Total Revenues $ 101,953 $ 533 $ 102,486 2018 Fleet Vehicle Sales Management Total Retail vehicle sales $ 53,448 $ — $ 53,448 Wholesale vehicle sales 3,153 — 3,153 Finance and insurance, net 1,608 — 1,608 Lease income, net — 142 142 Total Revenues $ 58,209 $ 142 $ 58,351 The following table summarizes revenues and cost of sales for retail and wholesale vehicle sales for the years ended December 31, 2020, 2019, and 2018: 2020 2019 2018 Retail vehicles: Retail vehicle sales $ 104,253 $ 90,382 $ 53,448 Retail vehicle cost of sales 96,983 84,534 48,523 Gross Profit – Retail Vehicles $ 7,270 $ 5,848 $ 4,925 Wholesale vehicles: Wholesale vehicle sales $ 9,984 $ 8,454 $ 3,153 Wholesale vehicle cost of sales 10,386 9,246 4,185 Gross Profit – Wholesale Vehicles $ (402) $ (792) $ (1,032) Retail Vehicle Sales The Company sells used vehicles to retail customers through its several retail hub locations. The transaction price for used vehicles is a fixed amount as set forth in the customer contract, and the revenue recognized by the Company is inclusive of the agreed upon transaction price and any service fees. Customers frequently trade-in their existing vehicle to apply toward the transaction price of a used vehicle. Trade-in vehicles represent noncash consideration that the Company measures at estimated fair value of the vehicle received on trade. The Company satisfies its performance obligation and recognizes revenue for used vehicle sales at a point in time when the title to the vehicle passes to the customer, at which point the customer controls the vehicle. The Company receives payment for used vehicle sales directly from the customer at the time of sale or from third-party financial institutions within a short period of time following the sale if the customer obtains financing. The Company’s return policy allows customers to initiate a return during the first three days or 500 miles after delivery, whichever comes first. A return reserve is estimated based on the Company’s historical activity and is recorded in Other liabilities in the consolidated balance sheets. Wholesale Vehicle Sales The Company sells wholesale vehicles primarily through auction as wholesale vehicles often do not meet the Company’s standards for retail vehicle sales. The Company satisfies its performance obligation and recognizes revenue for wholesale vehicle sales at a point in time when the vehicle is sold at auction or directly to a wholesaler and title to the vehicle passes to the customer. Finance and Insurance, net The Company provides customers with options for financing, insurance, and extended warranties. Extended warranties sold beginning January 1, 2019 are serviced by a company owned by a holder of Series A Preferred Stock. All other services are provided by third-party vendors and the Company has agreements with each of these vendors giving the Company the right to offer such services. When a customer selects a service from these third-party vendors, the Company earns a commission based on the actual price paid or financed. The Company concluded that it is an agent for these transactions because it does not control the service before they are transferred to the customer. Accordingly, the Company recognizes finance and insurance revenue at the point in time when the customer enters into the contract.

Marketable Securities_2

Marketable Securities	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Marketable Securities
Marketable Securities	Note 5 — Marketable Securities The following table summarizes amortized cost, gross unrealized gains and losses and fair values of the Company’s investments in fixed maturity debt securities as of March 31, 2021 and December 31, 2020: March 31, 2021 Amortized Gross Gross Cost/ Unrealized Unrealized Cost Basis Gains Losses Fair Value U.S. Treasuries $ 181 $ 2 $ — $ 183 Corporate bonds 63,197 2 (111) 63,088 Municipal bonds 24,003 5 (14) 23,994 Commercial paper 130,659 — — 130,659 Total Fixed Maturity Debt Securities $ 218,040 $ 9 $ (125) $ 217,924 December 31, 2020 Amortized Gross Gross Cost/ Unrealized Unrealized Cost Basis Gains Losses Fair Value U.S. Treasuries $ 240 $ 6 $ — $ 246 Corporate bonds 261 5 (1) 265 U.S. states, territories and political subdivisions 141 5 — 146 Total Fixed Maturity Debt Securities $ 642 $ 16 $ (1) $ 657 The amortized cost and fair value of the Company’s fixed maturity debt securities as of March 31, 2021 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Cost Fair Value Due in one year or less $ 173,174 $ 173,145 Due after one year through five years 44,540 44,457 Due after five years through ten years 326 322 Total $ 218,040 $ 217,924 The following tables summarize the Company’s gross unrealized losses in fixed maturity securities as of March 31, 2021 and December 31, 2020: March 31, 2021 Less Than 12 Months 12 Months or More Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Fair Value Losses Fair Value Losses Fair Value Losses Corporate bonds $ 23,226 $ (31) $ 39,736 $ (80) $ 62,962 $ (111) Municipal bonds 18,286 (11) 1,135 (3) 19,421 (14) Total Fixed Maturity Debt Securities $ 41,512 $ (42) $ 40,871 $ (83) $ 82,533 $ (125) December 31, 2020 Less Than 12 Months 12 Months or More Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Fair Value Losses Fair Value Losses Fair Value Losses Corporate bonds $ 39 $ (1) $ — $ — $ 39 $ (1) Total Fixed Maturity Debt Securities $ 39 $ (1) $ — $ — $ 39 $ (1) Unrealized losses shown in the tables above are believed to be temporary. Fair value of investments in fixed maturity debt securities change and are based primarily on market rates. As of March 31, 2021, the Company’s fixed maturity portfolio had 25 securities with gross unrealized losses totaling $83 with maturities that were in excess of 12 months and 98 securities with gross unrealized losses totaling $42 with maturities that were less than 12 months. No single issuer had a gross unrealized loss position greater than $26, or 3.5% of its amortized cost. At December 31, 2020, the Company’s fixed maturity portfolio had no securities with gross unrealized losses with maturities that were in excess of 12 months and 2 securities with gross unrealized losses totaling $1 with maturities that were less than 12 months. No single issuer had a gross unrealized loss position greater than $325(actual), or 1.6% of its amortized cost. The following tables summarize cost and fair values of the Company’s investments in equity securities as of March 31, 2021 and December 31, 2020: March 31, 2021 Estimated Cost Fair Value Equity securities $ 433 $ 500 December 31, 2020 Estimated Cost Fair Value Equity securities $ 335 $ 375 Proceeds from sales and maturities, gross realized gains, gross realized losses and net realized gains (losses) from sales and maturities of fixed maturity securities for the three months ended March 31, 2021 and December 31, 2020 consisted of the following: March 31, 2021 Gross Gross Net Realized Realized Realized Proceeds Gains Losses Losses Fixed maturity debt securities $ 59 $ — $ — $ — Equity securities — — — — Total Marketable Securities $ 59 $ — $ — $ — March 31, 2020 Gross Gross Net Realized Realized Realized Proceeds Gains Losses Losses Fixed maturity debt securities $ 18 $ — $ (3) $ (3) Equity securities — — — — Total Marketable Securities $ 18 $ 1 $ (3) $ (3)	Note 5 — Marketable Securities The Company began investing in debt securities with fixed maturities and equity securities during February 2020. The following table summarizes amortized cost, gross unrealized gains and losses, and estimated fair values of the Company's investments in fixed maturity debt securities, as of December 31, 2020: ​ Amortized Gross Gross Estimated Cost Unrealized Gains Unrealized Losses Fair Value Fixed Maturity Debt Securities ​ U.S. Treasuries $ 240 $ 6 $ — $ 246 Corporates 261 5 (1) 265 U.S. states, territories, and political subdivisions 141 5 — 146 Total Fixed Maturity Debt Securities $ 642 $ 16 $ (1) $ 657 The amortized cost and estimated fair value of the Company's fixed maturity debt securities as of December 31, 2020 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Estimated ​ Cost Fair Value Due in one year or less $ 77 $ 78 Due after one year through five years 379 388 Due after five years through ten years 186 191 Total $ 642 $ 657 The following table summarizes the Company's gross unrealized losses in fixed maturity debt securities as of December 31, 2020: Less Than 12 Months 12 Months or more Total Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Fixed maturity debt securities: Corporate Bonds $ 39 $ (1) $ — $ — $ 39 $ (1) Total Fixed Maturity Debt Securities $ 39 $ (1) $ — $ — $ 39 $ (1) Unrealized losses shown in the table above are believed to be temporary. Fair value of investments in fixed maturity debt securities change are based primarily on market rates. At December 31, 2020, the Company's fixed maturity portfolio had no securities with gross unrealized losses that were in excess of 12 months and 2 securities with gross unrealized losses totaling $1 that were less than 12 months. No single issuer had a gross unrealized loss position greater than $325 (actual), or 1.6%, of its amortized cost. The following table summarizes cost and estimated fair values of the Company's investments in equity securities, as of December 31, 2020: Estimated ​ Cost Fair Value Equity securities $ 335 $ 375 Proceeds from sales and maturities, gross realized gains, gross realized losses, and net realized gains (losses) from sales and maturities of fixed maturity debt securities for the year ended December 31, 2020 consist of the following: Gross Gross Net ​ Proceeds Realized Gains Realized Losses Realized (Losses) Fixed maturity debt securities $ 18 $ — $ — $ — Equity securities 50 1 (2) (1) Total Marketable Securities $ 68 $ 1 $ (2) $ (1)

Fair Value of Financial Instr_7

Fair Value of Financial Instruments	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Fair Value of Financial Instruments
Fair Value of Financial Instruments	Note 6 — Fair Value of Financial Instruments Items Measured at Fair Value on a Recurring Basis As of March 31, 2021 and December 31, 2020, the Company held certain assets and liabilities that were required to be measured at fair value on a recurring basis. The following tables are summaries of fair value measurements and hierarchy level as of: March 31, 2021 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 37,449 $ — $ — $ 37,449 Equity securities 500 — — 500 Fixed maturity debt securities, including cash equivalents — 233,193 233,193 Total Assets: $ 37,949 $ 233,193 $ — $ 271,142 Liabilities: Merger warrant liability 16,705 9,962 — 26,667 Earnout shares — — 42,438 42,438 Total Liabilities: $ 16,705 $ 9,962 $ 42,438 $ 69,105 December 31, 2020 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 405 $ — $ — $ 405 Equity securities 375 — — 375 Fixed maturity debt securities 246 411 — 657 Total Assets: $ 1,026 $ 411 $ — $ 1,437 Liabilities: Redeemable convertible preferred stock tranche obligation $ — $ — $ 2,832 $ 2,832 Historic warrants liability — — 144 144 Total Liabilities: $ — $ — $ 2,976 $ 2,976 Money market funds consist of highly liquid investments with original maturities of three months or less and classified in restricted cash in the accompanying condensed consolidated balance sheets. The Company recognizes transfers between the levels as of the actual date of the event or change in circumstances that caused the transfer. There were no transfers between the levels during the three months ended March 31, 2021 and 2020. The following tables set forth a summary of changes in the estimated fair value of the Company’s Level 3 redeemable convertible preferred stock tranche obligation, historic warrants liability and earnout shares for the three months ended March 31, 2021 and 2020: January 1, Change in March 31, 2021 Issuances Settlements fair value 2021 Redeemable convertible preferred stock tranche obligation $ 2,832 $ — $ (2,832) $ — $ — Historic warrants liability 144 — (144) — — Earnout shares — 74,284 — (31,846) 42,438 Total $ 2,976 $ 74,284 $ (2,976) $ (31,846) $ 42,438 January 1, Change in March 31, 2020 Issuances Settlements fair value 2020 Redeemable convertible preferred stock tranche obligation $ 3,755 $ — $ — $ (284) $ 3,471 Historic warrants liability 115 — — (13) 102 Total $ 3,870 $ — $ — $ (297) $ 3,573 The fair value of the earnout shares was estimated by utilizing a Monte-Carlo simulation model. The inputs into the Monte-Carlo pricing model included significant unobservable inputs. The table below summarizes the significant inputs used when valuing the earnout shares as of: March 31, 2021 January 21, 2021 Expected volatility 80.00 % 80.00 % Starting stock price $ 7.13 $ 11.31 Expected term (in years) 4.7 years 5 years Risk-free interest rate 0.87 % 0.45 % Earnout hurdle $ 12.50–$15.00 $ 12.50–$15.00 Fair Value of Financial Instruments Not Measured at Fair Value on a Recurring Basis The carrying amounts of restricted cash, accounts receivable and accounts payable approximate fair value because their respective maturities are less than three months. Beginning March 10, 2021, the Company entered into a $30,000 floor plan credit facility with Ally Financial. Concurrently, proceeds from the agreement were used to settle outstanding debt obligations on the Company’s preexisting floor plan facility with Automotive Finance Corporation (“AFC”). The carrying value of the Ally Financial floor plan notes payable outstanding as of March 31, 2021 approximates fair value due to its variable interest rate determined to approximate current market rates.	Note 6  —  Fair Value of Financial Instruments Items Measured at Fair Value on a Recurring Basis As of December 31, 2020 and December 31, 2019, the Company held certain assets and liabilities that were required to be measured at fair value on a recurring basis. The following tables are summaries of fair value measurements and hierarchy level as of December 31, 2020 and 2019: 2020 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 405 $ — $ — $ 405 Equity securities 375 — — 375 Fixed maturity debt securities 246 411 — 657 Total Assets: 1,026 411 — 1,437 Liabilities: Redeemable convertible preferred stock tranche obligation — — 2,832 2,832 Stock warrants liability — — 144 144 Total Liabilities: $ — $ — $ 2,976 $ 2,976 2019 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 688 $ — $ — $ 688 Liabilities: Redeemable convertible preferred stock tranche obligation — — 3,755 3,755 Stock warrants liability — — 115 115 Total Liabilities: $ — $ — $ 3,870 $ 3,870 Money market funds consist of highly liquid investments with original maturities of three months or less and classified in restricted cash in the accompanying consolidated balance sheets. The Company recognizes transfers between the levels as of the actual date of the event or change in circumstances that caused the transfer. There were no transfers between the levels during the years ended December 31, 2020 and 2019. The following tables set forth a summary of changes in the estimated fair value of the Company’s Level 3 redeemable convertible preferred stock tranche obligation and Level 3 stock warrants liability for the years ended December 31, 2020 and 2019: Change in Year-ended December 31, 2020 January 1, Issuances Settlements Fair Value December 31, Redeemable convertible preferred stock tranche obligation $ 3,755 $ — $ — $ (923) $ 2,832 Stock warrants liability 115 15 — 14 144 Total $ 3,870 $ 15 $ — $ (909) $ 2,976 Change in Year-ended December 31, 2019 January 1, Issuances Settlements Fair Value December 31, Redeemable convertible preferred stock tranche obligation $ 3,261 $ — $ (902) $ 1,396 $ 3,755 Stock warrants liability 67 72 — (24) 115 Total $ 3,328 $ 72 $ (902) $ 1,372 $ 3,870 The fair value of the obligation to purchase future tranches of Series A Preferred Stock was estimated by utilizing the Black Scholes pricing model. The inputs into the Black Scholes pricing model included significant unobservable inputs. The table below summaries the significant inputs used when valuing the redeemable convertible preferred stock tranche obligation as of December 31, 2020 and 2019: 2020 2019 Expected volatility % % Expected dividend yield 0.00 % 0.00 % Expected term (in years) 4 years 5 years Risk-free interest rate % % Marketability discount % % Fair Value of Financial Instruments Not Measured at Fair Value on a Recurring Basis The carrying amounts of restricted cash, accounts receivable, and accounts payable approximate fair value because their respective maturities are less than three months. The carrying value of the floor plan notes payable outstanding as of December 31, 2020 and December 31, 2019 approximates its fair value due to its variable interest rate determined to approximate current market rates. The convertible note payable was issued on December 20, 2019 and was entered into at prevailing interest rates on the date of issuance. Given the proximity of the issuance of the convertible note payable to December 31, 2019, the fair value of the convertible note payable was determined to approximate carrying value as of December 31, 2019. The fair value of the convertible note is $3,264 versus a carrying value of $3,325 as of December 31, 2020. The difference between the carrying value and the fair value of the Paycheck Protection Program (PPP) loan of $1,749 as of December 31, 2020 is immaterial. The Promissory Note with a carrying value of $2,990 was issued on December 2, 2020 and was entered into at prevailing interest rates on the date of issuance. Given the proximity of the issuance of the Promissory Note payable to December 31, 2020, the fair value of the Promissory Note was determined to approximate carrying value as of December 31, 2020.

Accounts Receivable, Net_2

Accounts Receivable, Net	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accounts Receivable, Net
Accounts Receivable, Net	Note 7 — Accounts Receivable, Net The following table summarizes accounts receivable as of: ​ March 31, December 31, 2021 2020 Contracts in transit $ 8,521 $ 3,321 Trade 243 240 Finance commission 329 132 Other 298 506 Total 9,391 4,199 Allowance for doubtful accounts (67) (67) Total Accounts Receivable, net $ 9,324 $ 4,132	Note 7 — Accounts Receivable, Net Accounts receivable consist of the following as of December 31, 2020 and 2019: 2020 2019 Contracts in transit $ 3,321 $ 2,645 Trade 240 202 Finance commission 132 87 Other 506 349 Total 4,199 3,283 Allowance for doubtful accounts (67) (27) Total Accounts Receivable, net $ 4,132 $ 3,256 Contracts in transit are typically collected within fifteen days. Other amounts due are from third parties as a result of vehicle sales and parts sold or services provided. Receivables also include commissions on aftermarket products. Receivables from the sale of vehicles are secured by the related vehicles. Receivables arising from the sale of parts and service are uncollateralized customer obligations due under normal trade terms requiring payment within 30 days from the invoice date. The carrying amount of receivables is reduced by an allowance for doubtful accounts that reflects management’s best estimate of the amounts that will not be collected. Management reviews each receivable balance monthly, and, based on historical bad debt experience and management’s evaluation of customer creditworthiness, estimates that portion, if any, of the balance that will not be collected. No interest is charged on delinquent receivables.

Inventory and Floor Plan Note_5

Inventory and Floor Plan Notes Payable	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Inventory and Floor Plan Notes Payable
Inventory and Floor Plan Notes Payable	Note 8 — Inventory and Floor Plan Notes Payable The following table summarizes inventory as of: ​ March 31, December 31, 2021 2020 Used vehicles $ 9,274 $ 11,202 Parts 37 — Total $ 9,311 $ 11,202 Beginning March 10, 2021, the Company entered into a $30,000 floor plan credit facility with Ally Financial to finance the acquisition of used vehicle inventory. Concurrently, proceeds from the agreement were used to settle outstanding debt obligations on the Company’s preexisting floor plan facility with AFC. Borrowings under the Ally Financial facility accrue interest at a variable rate based on the most recent prime rate plus 2.50% per annum. The prime rate as of March 31, 2021 was 3.25%. Floor plan notes payable are generally due upon the sale of the related used vehicle inventory.	Note 8 — Inventory and Floor Plan Notes Payable Inventory consists of the following as of December 31, 2020 and 2019: 2020 2019 Used vehicles $ 11,202 $ 7,592 Parts — 33 Total $ 11,202 $ 7,625 As of December 31, 2020, the Company has a $12,000 revolving floor plan facility with Automotive Finance Corporation (“AFC”) to finance the acquisition of used vehicle inventory. Borrowings under this facility accrue interest at a variable rate based on the most recent prime rate plus 2.00% per annum. The weighted average interest rate on the floor plan notes payable was 5.25% and 6.75% as of December 31, 2020 and 2019, respectively. Floor plan notes payable are generally due upon the sale of the related used vehicle inventory.

Property and Equipment, Net_2

Property and Equipment, Net	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Property and Equipment, Net
Property and Equipment, Net	Note 9 — Property and Equipment, Net The following table summarizes property and equipment as of: March 31, December 31, 2021 2020 Capital lease asset building $ 1,305 $ 1,305 Leasehold improvements 887 702 Furniture, fixtures and equipment 1,161 760 Corporate vehicles 143 143 Total property and equipment 3,496 2,910 Less: accumulated depreciation (1,147) (1,042) Property and Equipment, net $ 2,349 $ 1,868 Depreciation expense for property and equipment was approximately $105 and $51 for the three months ended March 31, 2021 and 2020, respectively.	Note 9 — Property and Equipment, Net Property and equipment consist of the following as of December 31, 2020 and 2019: 2020 2019 Capital lease asset building $ 1,305 $ — Leasehold improvements 702 688 Furniture, fixtures, and equipment 760 715 Corporate vehicles 143 104 Total property and equipment 2,910 1,507 Less: accumulated depreciation (1,042) (876) Property and Equipment, net $ 1,868 $ 631 Depreciation expense for property and equipment was approximately $195, $260 and $253 for the years ended December 31, 2020, 2019 and 2018, respectively. On December 23, 2020, the Company entered into a capital lease for a new hub location building. Amortization of the capital lease asset for the year ended December 31, 2020 was $0 and is included in depreciation expense in the consolidated statements of operations.

Other Assets_2

Other Assets	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Assets
Other Assets	Note 10 — Other Assets The following table summarizes other assets as of: March 31, December 31, 2021 2020 Other Current Assets: Lease receivable, net $ 22 $ 36 Stock issuance costs 47 72 Prepaid expenses 5,857 679 Interest receivable 729 — Deferred transaction costs — 5,892 Total Other Current Assets $ 6,655 $ 6,679 Other Assets: Lease receivable, net $ 16 $ 16 Stock issuance costs 72 48 Security deposits 3,249 235 Total Other Assets $ 3,337 $ 299	Note 11 — Other Assets Other Assets consists of the following as of December 31, 2020 and 2019: 2020 2019 Other Current Assets: Lease receivable, net $ 36 $ 13 Deferred acquisition costs 72 32 Prepaid expenses 679 189 Stock issuance costs 5,892 — Total Other Current Assets $ 6,679 $ 234 Other Assets: Lease receivable, net $ 16 $ 38 Deferred acquisition costs 48 50 Security deposits 235 255 Total Other Assets $ 299 $ 343 Stock issuance costs consist of legal, accounting, underwriting fees and other costs that are directly related to the Merger. Stock issuance costs amounting to approximately $5,892 as of December 31, 2020 will be charged to shareholder’s equity upon completion of the Merger. See Note 24 — Subsequent Events for additional information on the Merger. The following table summarizes deferred acquisition costs that the Company has deferred and is amortizing over the effective term of the related contracts as of December 31, 2020 and 2019: 2020 2019 Beginning $ 82 $ 22 Written 173 93 Amortized (135) (33) Ending 120 82 Less: current portion 72 32 Non-current 48 50 Total Deferred Acquisition Costs $ 120 $ 82

Long-term Debt_2

Long-term Debt	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Long-term Debt
Long-term Debt	Note 11 — Long-term Debt The following table summarizes long-term debt as of: ​ March 31, December 31, 2021 2020 Capital lease obligation $ 1,305 $ 1,305 Promissory note — 2,990 Convertible notes payable, net — 3,325 Paycheck Protection Program loan — 1,749 ​ 1,305 9,369 Current portion of long-term debt (55) (6,370) Long-term Debt $ 1,250 $ 2,999 Promissory Note Concurrently with the closing of the Merger on January 21, 2021, the promissory note was extinguished through a cash payment of $3.0 million. Convertible Notes Payable On December 20, 2019, the Company entered into a note purchase agreement (“NPA”) with AFC. AFC’s parent company was also a common stockholder of Former CarLotz. For each convertible note of $1,000 or portion thereof that AFC purchased, AFC received warrants (historic warrants) constituting 0.20% of Former CarLotz’ fully-diluted common stock. As of December 31, 2020, the Company had a convertible note balance of $3,500. The note accrued interest at 6.00% on a 365-day basis and the outstanding interest payable as of December 31, 2020 was approximately $212. Concurrently with the closing of the Merger on January 21, 2021, the historic warrants and the note were converted to a fixed number of shares pursuant to a conversion agreement with AFC. The convertible notes were extinguished by issuing AFC 347,992 shares of Former CarLotz common stock and the warrants were exercised into 73,869 shares of Former CarLotz common stock. There are no historic warrants outstanding subsequent to the exercise. Payroll Protection Program Loan In April 2020, the Company received a Paycheck Protection Program (“PPP”) loan, a new loan program under the Small Business Administration’s 7(a) program providing loans to qualifying businesses, totaling approximately $1,749. As of December 31, 2020, the Company had an outstanding PPP loan balance of $1,749, which was subsequently repaid extinguished concurrently with the closing of the Merger.	Note 12 — Long-term Debt Long-term debt, including capital lease obligations, consists of the following as of December 31, 2020 and 2019: 2020 2019 Term note payable $ — $ 9 Capital lease obligation 1,305 — Promissory note 2,990 — Convertible notes payable, net 3,325 2,816 Paycheck Protection Program loan 1,749 — 9,369 2,825 Current portion of long-term debt (6,370) (2,825) Long-term Debt $ 2,999 $ — Term Note Payable The Company had a note payable to a financial institution due in monthly installments of approximately $1, including interest of 16.01% through December 2020. The note is secured by real property. The balance as of December 31, 2020 and 2019 was $0 and $9, respectively. Capital Lease Obligation The Company entered into a 10-year and three-month lease for a new hub location building that commenced on December 23, 2020 and is set to expire on March 23, 2031. As lessee, CarLotz is obligated to pay the lessor total future minimum lease payments of $1,971. This capital lease does not carry an explicit interest rate but is subject to an annual rent escalation of 2.0% throughout the lease term. At the end of the lease term, CarLotz has three 5-year renewal options with the same terms of 2.0% annual rent escalations. Promissory Note On December 2, 2020, the Company entered into a promissory note with AFC. Under this promissory note, the Company borrowed a principal sum of $3,000 which was recorded net of issuance costs of $10. The promissory note is due and payable upon the earlier to occur of (i) an Event of Default, as defined below and in the promissory note, (ii) the Merger Closing Date, as defined below and in the merger agreement, dated as of October 21, 2020 (as amended), between Acamar Partners Acquisition Corp and the Company (See Note 24—Subsequent Events for additional details) , and (iii) two years from the date of the note, December 2, 2022. Interest on the promissory note accrues at a fixed rate equal to 6% per annum and totaled $15 from December 2, 2020 to December 31, 2020. An Event of Default is defined as either a) the Payor defaults in the payment of any amount owing under the note or other payment obligation to Payee when due (whether at stated maturity, by acceleration, upon optional or mandatory prepayment, or otherwise) or b) the Payor i) is dissolved; ii) makes a general assignment, arrangement or composition with or for the benefit of its creditors; iii) institutes or has instituted against it a proceeding seeking a judgement of insolvency or bankruptcy or any other relief under any bankruptcy or insolvency law or similar law affecting creditors' rights, or a petition is presented for its winding-up or liquidation, and, in the case of any such proceeding or petition (x) results in a judgment of insolvency or bankruptcy or the entry of an order for relief or the making of an order for its winding-up or liquidation, or y) is not dismissed, discharged, stayed or restrained in each case within 60 days of the institution of presentation thereof; iv) has a resolution passed for its winding-up, official management or liquidation (other than pursuant to a consolidation, amalgamation or merger); or v) seeks or becomes subject to the appointment of an administrator, provisional liquidator, conservator, receiver, trustee, custodian or other similar official for it or for all or substantially all its assets. The Closing is defined in the merger agreement as the date which is second Business Day after the date on which all conditions set forth in Article VII (of the merger agreement) shall have been satisfied or waived (other than those conditions that by their terms are to be satisfied at the Closing, but subject to the satisfaction or waiver thereof) or such other time and place as Acquiror and the Company may mutually agree in writing. The Merger Closing Date is defined as the date on which the Closing actually occurs. Convertible Notes Payable On December 20, 2019, the Company entered into a note purchase agreement (“NPA”) with AFC. AFC’s parent company is also a common equity holder of the Company. Under this agreement, AFC agreed to purchase up to $5,000 in notes, with the initial tranche equal to $3,000 and up to two additional tranches of at least $1,000 on or prior to September 20, 2021. For each note of $1,000 or portion thereof that AFC purchases, AFC receives stock warrants constituting 0.20% of the Company’s fully-diluted common stock. In December 2019, AFC purchased the initial tranche of $3,000, which were recorded as a convertible notes payable net of issuance costs totaling approximately $112 and net of the fair value of stock warrants issued of $72. On April 8, 2020, the Company entered into an Amendment to the NPA to allow for up to four additional tranches of $500 each, instead of two additional tranches of at least $1,000 each, as stated in the NPA. As a result, the Company issued a second tranche of convertible notes of $500 in the second quarter of 2020. The note accrues interest at 6.00% on a 365-day basis and the outstanding interest payable as of December 31, 2020 and 2019 is approximately $212 and $6, respectively. AFC has the right to convert this note into a variable number of shares of the Company’s common stock at any time. The note is due on demand and is reflected as Long-term debt, current on the accompanying consolidated balance sheets. Since the note has a conversion price that was not in the money at the date of issuance, there was no beneficial conversion feature recorded. On the date of issuance, the Company also assessed the conversion feature for possible derivative treatment (under ASC 815 Derivatives and Hedging ) and determined the conversion feature did not meet the definition of a derivative because the embedded conversion option requires physical settlement and the underlying shares to be delivered upon conversion are not readily convertible to cash. The fair value of the stock warrants has been estimated using the Black-Scholes pricing model with the following weighted average assumptions: Maturity 4 years Risk-free interest rate 0.27 % Volatility 85.00 % Dividend yield 0.00 % Weighted average fair value per common share 1.89 The exercise price of the stock warrants is $0.01 per share (actual). The stock warrants are only exercisable upon a sale or change of control. No stock warrants were exercised during the year. The stock warrants met the definition of a derivative in accordance with ASC 815 and were classified as a liability because they permit a cash exercise which is considered a contractual net settlement provision. The fair value of the stock warrants has been included in Other liabilities in the consolidated balance sheets. Changes in the fair value of the stock warrants liability were recognized as a component of Other income (expense), net in the consolidated statements of operations. The following is an analysis of stock warrants to purchase shares of the Company’s common stock issued and outstanding as of December 31, 2020 and 2019. The stock warrantss are presented on an as converted basis at the ratio of 10.1927: 2020 2019 Stock warrants outstanding, January 1 699,026 239,121 Stock warrants issued with convertible notes payable 78,239 459,905 Stock warrants cancelled — — Stock warrants exercised — — Stock warrants outstanding, December 31 777,265 699,026 Paycheck Protection Program Loan In April 2020, the Company received a PPP loan, a new loan program under the Small Business Administration's 7(a) program providing loans to qualifying businesses, totaling approximately $1,749. The full amount of the PPP loan was repaid in connection with the closing of the merger with Acamar Partners Acquisition Corp ("Acamar"). Subsequent to year end December 31, 2020, and as a result of the Acamar Partners Acquisition Corp. Merger, CarLotz settled its debt obligations, excluding the floor plan facility and capital lease obligation. See Note 24—Subsequent Events for additional details about the merger with Acamar.

Accrued Expenses_2

Accrued Expenses	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accrued Expenses
Accrued Expenses	Note 12 — Accrued Expenses The following table summarizes accrued expenses as of: March 31, December 31, 2021 2020 License and title fees $ 1,634 $ 785 Payroll and bonuses 2,038 837 Deferred rent 262 199 Technology 2,900 — Other 4,316 1,742 Total Accrued Expenses $ 11,150 $ 3,563	Note 13 — Accrued Expenses Accrued expenses consist of the following as of December 31, 2020 and 2019: 2020 2019 License and title fees $ 785 $ 399 Payroll and bonuses 837 388 Deferred rent 199 300 Other accrued expenses 1,742 489 Total Accrued Expenses $ 3,563 $ 1,576 The Company had accrued transaction expenses of $6,052 as of December 31, 2020, including legal, accounting, underwriting fees and other costs that are directly related to the Acamar Partners Acquisition Corp. Merger. See Note 24—Subsequent Events for additional information on the merger.

Other Liabilities_2

Other Liabilities	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Liabilities
Other Liabilities	Note 13 — Other Liabilities The following table summarizes other liabilities as of: March 31, December 31, 2021 2020 Other Liabilities, Current Unearned insurance premiums $ 815 $ 257 Other Liabilities Unearned insurance premiums 1,423 1,680 Other long-term liabilities 147 135 Historic warrants liability — 144 Other Liabilities, Long-term $ 1,570 $ 1,959	Note 15 — Other Liabilities Other Liabilities consists of the following as of December 31, 2020 and 2019: 2020 2019 Other Liabilities, Current Unearned insurance premiums $ 257 $ 434 Other Liabilities Unearned insurance premiums 1,680 719 Other long-term liabilities 135 97 Stock warrants liability 144 115 Other Liabilities, Long-term $ 1,959 $ 931

Lease Commitments_2

Lease Commitments	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Lease Commitments
Lease Commitments	Note 14 — Lease Commitments The Company leases its operating facilities from various third parties under non-cancelable operating leases. The leases require various monthly rental payments ranging from approximately $3 to $36, with various ending dates through July 2031. The leases are triple net, whereby the Company is liable for taxes, insurance and repairs. Rent expense for all operating facility leases was approximately $688 and $462 for the three months ended March 31, 2021 and 2020, respectively. Most of these leases have escalating rent payments, which are being expensed on a straight-line basis and are included in deferred rent, within Accrued expenses. The following is a table of facility lease commitments due for the next five years and thereafter as of March 31, 2021: Total Capital Total Per Year Leases 2021 (remaining) $ 2,158 $ 139 2022 3,675 183 2023 3,535 187 2024 2,552 190 2025 2,339 194 Thereafter 3,977 1,078 Total $ 18,236 $ 1,971 Less: amount representing interest $ (666) Present value of minimum lease payments $ 1,305 Less: current obligation $ (55) Long-term obligations under capital lease $ 1,250 The Company also leases vehicles from a third party under noncancelable operating leases and leases these same vehicles to end customers with similar lease terms, with the exception of the interest rate. The leases require various monthly rental payments from the Company ranging from $291 to $1,770 (actual) with various ending dates through June 2025. The following is a schedule of the approximate future minimum lease payments due to third parties and the related expected future receipts related to these lease vehicles as of March 31, 2021: Payments Due to Third-Parties Future Receipts 2021 (remaining) $ 1,225 $ 1,473 2022 1,158 1,389 2023 731 865 2024 312 367 2025 11 13 Total $ 3,437 $ 4,107	Note 16 — Lease Commitments The Company leases its operating facilities from various third parties under noncancelable operating leases. The leases require various monthly rental payments ranging from approximately $3 to $50 with various ending dates through March 2031. The leases are triple net, whereby the Company is liable for taxes, insurance and repairs. Rent expense for all operating facility leases was approximately $1,720, $2,000 and $1,000 for the years ended December 31, 2020, 2019, and 2018, respectively. Most of these leases have escalating rent payments which are expensed on a straight-line basis and are included in deferred rent, within accrued expenses on the accompanying consolidated balance sheets. The following is a table of facility lease commitments due for the next five years, and thereafter as of December 31, 2020: Operating Leases Capital Leases 2021 $ 2,303 $ 139 2022 2,372 183 2023 2,209 187 2024 1,216 190 2025 993 194 Thereafter 511 1,078 Total Minimum Lease Payments $ 9,604 $ 1,971 Less: amount representing interest (666) Present value of minimum lease payments 1,305 Less: current obligation (55) Long-term obligations under capital lease $ 1,250 The Company is obligated under capital leases for a hub location which expires in March 2031. The Company recorded the lease liability at the fair market value of the underlying asset of $1,305 in the consolidated balance sheets. The Company also leases vehicles from unrelated third parties under noncancelable operating leases and leases these same vehicles to end customers with similar lease terms, with the exception of the interest rate. The leases require various monthly rental payments from the Company ranging from $291 to $1,770 (actual) with various ending dates through December 2023. The following is a schedule of the approximate future minimum lease payments due to third parties and the related expected future receipts related to these lease vehicles as of December 31, 2020: Payments Due to Third Parties Future Receipts 2021 $ 1,538 $ 1,862 2022 1,024 1,236 2023 596 711 2024 194 233 2025 2 3 Total $ 3,354 $ 4,045

Commitments and Contingencies_2

Commitments and Contingencies	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Commitments and Contingencies.
Commitments and Contingencies	Note 15 — Commitments and Contingencies The Company sells retail installment contracts to financial institutions without recourse. Some buyers of the contracts retain portions of the finance commissions as reserves against early payoffs. The Company is subject to chargebacks against such income in the event of a cancellation or early payoff. The Company’s facilities are subject to federal, state and local provisions regulating the discharge of materials into the environment. Compliance with these provisions has not had, nor does the Company expect such compliance to have, any material effect upon the capital expenditures, net income, financial condition or competitive position of the Company. Management believes that its current practices and procedures for the control and disposition of such materials comply with the applicable federal and state requirements. The Company is involved in certain legal matters that it considers incidental to its business. In management’s opinion, none of these legal matters will have a material effect on the Company’s financial position or results of operations.	Note 18—Commitments and Contingencies The Company sells retail installment contracts to financial institutions without recourse. Some buyers of the contracts retain portions of the finance commissions as reserves against early payoffs. The Company is subject to chargebacks against such income in the event of a cancellation or early payoff. The Company’s facilities are subject to federal, state and local provisions regulating the discharge of materials into the environment. Compliance with these provisions has not had, nor does the Company expect such compliance to have, any material effect upon the capital expenditures, net income, financial condition or competitive position of the Company. Management believes that its current practices and procedures for the control and disposition of such materials comply with the applicable federal and state requirements. The Company is involved in certain legal matters that it considers incidental to its business. In management’s opinion, none of these legal matters will have a material effect on the Company’s financial position or the results of operations.

Redeemable Convertible Prefer_3

Redeemable Convertible Preferred Stock	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Redeemable Convertible Preferred Stock
Redeemable Convertible Preferred Stock	Note 16 — Redeemable Convertible Preferred Stock As of December 31, 2020, the Amended and Restated Certificate of Incorporation of Former CarLotz provided for two classes of ownership: common stock and Series A Preferred Stock. The holder of the Series A Preferred Stock received distribution priority in order of 1.5 times the sum of any unpaid returns and unreturned capital contributions. Preferred returns were calculated at an 8.00% annual rate. Unpaid cumulative distributions were approximately $4,800 as of December 31, 2020, and the Series A Preferred Stock had a liquidation preference of $37,114 as of December 31, 2020. Upon liquidation of Former CarLotz, proceeds in excess of the Series A Preferred Stock would have been shared pro rata among all stockholders based on the number of shares. The unpaid cumulative distributions are included as Accrued expenses — related party on the accompanying condensed consolidated balance sheets. As a result of the Merger, the Company settled Former CarLotz’ redeemable convertible preferred stock and redeemable convertible preferred stock tranche obligation with carrying values of $17,560 and $2,832, respectively, as of December 31, 2020.	Note 19 — Redeemable Convertible Preferred Stock The Amended and Restated Certificate of Incorporation of the Company provides for two classes of ownership: Common stock and Series A Preferred Stock. The holder of Series A Preferred Stock receives distribution priority in order of 1.5 times the sum of any unpaid returns and unreturned capital contributions. Preferred returns are calculated at an 8.00% annual rate. Unpaid cumulative distributions are approximately $4,800 and $2,900 as of December 31, 2020 and 2019, respectively. As of December 31, 2020 and 2019, the Series A Preferred Stock has a liquidation preference of $37,114 and $34,300, respectively. Upon liquidation of the Company, proceeds in excess of the Series A Preferred Stock would be shared pro rata among all stockholders based on the number of shares. The unpaid cumulative distributions are included as accrued expenses — Related Party on the accompanying consolidated balance sheets. The Company’s Series A Preferred Stock is classified as temporary equity. ASC 480 Distinguishing Liabilities from Equity , Accounting Series Release 268 requires equity instruments with redemption features that are not solely within the control of the issuer to be classified outside of permanent equity, in temporary equity. The Series A Preferred Stock is redeemable for cash and other assets on the occurrence of a deemed liquidation event such as a change of control which is considered an event that is not solely within the control of the Company because the holders of the Series A Preferred Stock control the Company’s Board of Directors. The Company’s September 2017 issuance and sale of Series A Preferred Stock is to be issued in four tranches on different dates. The first issuance of 1,220,851 preferred shares occurred in September 2017. The second tranche closing of 813,900 shares was contingent upon the achievement of certain performance conditions before December 31, 2020 (“Tranche Two Performance Date”) or the waiver of the performance conditions by the holders of the Series A Preferred Stock. The performance conditions are defined in the Series A Preferred Stock Purchase Agreement and are based on the achievement of operating metrics such as earnings before interest, taxes, depreciation, and amortization exceeding targets for existing stores, achievement of opening a minimum number of new stores and meeting financial targets for those new stores, corporate overhead goals, and commercial vehicle sales objectives. Upon the attainment or waiver of the performance conditions, the founding stockholders of the Company may cause the Company to issue and sell to the Series A Preferred Stockholders the shares contemplated in the second tranche closing. The Company classified the obligation for the future purchase of additional shares under the second closing as a liability on the Company’s consolidated balance sheets as the obligation met the definition of a freestanding financial instrument. This Series A Preferred Stock tranche liability was initially recorded at a fair value of $482 upon the date of issuance and was subsequently remeasured to fair value at each reporting date using Level 3 fair value inputs. Changes in the fair value of the Series A Preferred Stock tranche obligation were recognized as a component of other income (expense), net in the consolidated statements of operations until the tranche obligation was fulfilled and extinguished. The second tranche was funded in two separate closings in January 2019 for 305,188 shares and May 2019 for 508,712 shares. The 2017 Series A Preferred Stock Purchase Agreement contains two additional funding dates such that, contingent upon the Tranche Two Performance Date, the stockholders of the Series A Preferred Stock have the right, but not the obligation, to purchase an additional 508,688 shares in each tranche at a price equal to the original issuance purchase price. The third and fourth tranche obligations were initially recorded at a fair value of $1,214 each and were subsequently remeasured to fair value at each reporting date with changes in the fair value of the Series A Preferred Stock tranche obligation recognized in other income (expense), net in the consolidated statements of operations. Significant terms of the outstanding Series A Preferred Stock are as follows: 1) Conversion  — Each share of Series A Preferred Stock may be converted into shares of common stock based upon dividing the original issue price of the Series A Preferred Stock by the conversion price. Conversion is (a) at the option of the preferred stockholders and (b) mandatory upon the closing of an initial public offering of the Company’s common stock, meeting certain minimum requirements with respect to net cash proceeds, and upon the consent of a majority of the outstanding shares of Series A Preferred Stock. In accordance with ASC 480, the conversion feature was determined to be clearly and closely related to the host contract and was not bifurcated from the equity-like host instrument and accounted for separately. In addition, the conversion feature was not determined to be a beneficial conversion feature because there was zero intrinsic value to the conversion option at the commitment date. 2) Dividends  — The holders of Series A Preferred Stock are entitled to receive, in any fiscal year, cumulative dividends which accrue at the rate of 8.00% of the original issuance price, plus all accrued but unpaid dividends, compounded quarterly. As of December 31, 2020 and 2019, the aggregate cumulative preferred dividends were approximately $4,800 and $2,900, respectively, or an amount per outstanding share of Series A Preferred Stock of $2.34 and $1.41, respectively. 3) Liquidation  — In the event of any liquidation, dissolution or winding-up of the Company, either voluntarily or involuntarily, the holders of Series A Preferred Stock are entitled to receive from the remaining assets of the Company available for distribution, before any payment shall be made in respect of the common stock, an amount equal to 1.5 times the sum of the per share original issuance price of Series A Preferred Stock, plus any dividends thereon declared but unpaid. If the assets of the Company available for distribution are not sufficient to pay the full amount of distribution, plus any dividends thereon declared but unpaid, such assets will be distributed ratably in proportion to the respective amounts per share that each holder is entitled to receive. 4) Redemption — Shares of Series A Preferred Stock are not subject to mandatory redemption. 5) Voting Rights  — Each share of Series A Preferred Stock has voting rights equal to the number of common shares into which it is convertible. Additionally, upon the initial funding of the Series A Preferred Stock, the holders of the Series A Preferred Stock were entitled to elect three members to the Company’s Board of Directors. Upon the funding of the second tranche of the Series A Preferred Stock, the Series A holders were entitled to elect a total of five directors to the Company’s Board of Directors. 6) Other Rights — At any time from and after September 15, 2024, the holders of the Series A Preferred Stock may cause a Sale of the Company by means of an Initial Public Offering or a sale of all Series A Preferred Stock owned by the holders and an exercise of its drag-along rights, a controlled auction, or a negotiated sale to a third party. These rights are subject to right of first offer from the founding stockholders to purchase the Company in the event a sales process is initiated by the holders of the Series A Preferred Stock.

Stock-Based Compensation Plan_4

Stock-Based Compensation Plan	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Stock-Based Compensation Plan
Stock-Based Compensation Plan	Note 17 — Stock-Based Compensation Plan Stock Option Plans The Company has three stock incentive plans, the “2011 Stock Option Plan”, the “2017 Stock Option Plan” and the “2020 Incentive Award Plan” to promote the long-term growth and profitability of the Company. The Stock Option Plans do this by providing senior management and other employees with incentive to improve shareholder value and contribute to the growth and financial success of the Company by granting equity instruments to these stakeholders. Share-based compensation expense was recorded for the three months ended March 31, 2021 and 2020 of approximately $41,963 and $34, respectively. The Company estimates the fair value of stock options using the Black-Scholes pricing model. The Black-Scholes pricing model requires the use of subjective inputs such as stock price volatility. Changes in the inputs can materially affect the fair value estimates and ultimately the amount of stock-based compensation expense that is recognized. During the three months ended March 31, 2021 and 2020, there were no grants related to the 2011 Stock Option Plan. A summary of activity for the three months ended March 31, 2021 and 2020 for the 2011 Stock Option Plan is as follows: Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 The following summarizes certain information about stock options vested and expected to vest as of March 31, 2021 related to the 2011 Stock Option Plan: Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 1,515,146 1.49 years $ 0.58 Exercisable 1,515,146 1.49 years $ 0.58 Aggregate intrinsic value represents the total pre-tax intrinsic value, which is computed based on the difference between the option exercise price and the estimated fair value of the Company’s common stock at the time such option exercises. This intrinsic value changes based on changes in the fair value of the Company’s underlying common stock. The aggregate intrinsic value for options outstanding and options exercisable as of March 31, 2021 and December 31, 2020 is $6.55. The terms of the 2017 Stock Option Plan provide for vesting upon certain market and performance conditions, including achieving certain triggering events, including specified levels of return on investment upon a sale of the Company. Because the 2017 Stock Option Plan has a market-based vesting condition, an open-form valuation model was used to value the options. All stock options related to the 2017 Stock Option Plan have an exercise price of $0.92 per share. All stock options related to the 2017 Stock Option Plan expire 10 years after the grant date, which ranges from March 2028 to October 2029. A summary of activity for the three months ended March 31, 2021 and 2020 for the 2017 Stock Option Plan is as follows: Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 The 2017 options vest upon a change of control. Although the Merger did not meet the definition of a change of control, the Company modified the awards in connection with the Merger such that all vesting conditions were waived for 3,538,672 of the options. This modification impacted 8 employees and resulted in $38,800 of share-based compensation on the modification date. The remaining options were also modified but will vest over a four year service period and impacted 16 employees. These options resulted in $186 of cash consideration and $4,500 of share based compensation that will be recognized over the four year service period. The following summarizes certain information about stock options vested and expected to vest as of March 31, 2021 related to the 2017 Stock Option Plan: ​ Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 3,961,658 8.31 years $ 0.92 Exercisable 3,538,672 8.18 years $ 0.92 The aggregate intrinsic value for options outstanding and options exercisable as of March 31, 2021 and December 31, 2020 is $6.21. The inputs used for the 2017 Stock Option Plan were as follows for the period ended March 31, 2021: Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % A summary of activity for the three months ended March 31, 2021 for the 2020 Stock Option Plan is as follows: Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 The grant date fair value of the options was $7.77. As of March 31, 2021, there was approximately $10,419 of total unrecognized compensation cost related to unvested options related to the 2020 Stock Option Plan. The inputs used for the 2020 Stock Option Plan were as follows for the period ended March 31, 2021: Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 6.25 years Risk-free interest rate 0.62 % Earnout Restricted Stock Units Former CarLotz option holders as of the effective tome of the Merger received 640,421 earnout restricted stock units (Earnout RSUs). The Earnout RSUs vest if certain targets are met in the post-Merger period. The earnouts for the Earnout RSUs are subject to an earnout period, which is defined as the date 60 months following the consummation of the Merger. The Merger closed on January 21, 2021, and the earnout period expires January 21, 2026. Earnout RSUs will vest if any of the following conditions are achieved following January 21, 2021: i. If at any time during the 60 months following the Closing Date (the first business day following the end of such period, the “Forfeiture Date”), the closing trading price of the common stock is greater than $12.50 over any 20 trading days within any 30 trading day period (the “First Threshold”), 50% of the ii. If at any time prior to the Forfeiture Date, the closing trading price of the common stock is greater than $15.00 over any 20 trading days within any 30 trading day period (the “Second Threshold”), 50% of the Earnout RSUs will vest. iii. If either the First Threshold or the Second Threshold is not met on or before the Forfeiture Date, any unvested Earnout RSUs are forfeited. All unvested Earnout RSUs will vest if there is a change of control of the Company that will result in the holders of the common stock receiving a per share price equal to or in excess of $10.00 (as equitably adjusted for stock splits, stock dividends, special cash dividends, reorganizations, combinations, recapitalizations and similar transactions affecting the common stock) prior to the Forfeiture Date. The estimated fair value of the liability is determined by using a Monte-Carlo simulation model, which incorporates various assumptions, including expected stock price volatility, contractual term, dividend yield and stock price at grant date. The Company estimates the volatility of common stock on the date of grant based on the weighted-average historical stock price volatility of comparable publicly-traded companies. A summary of activity for the three months ended March 31, 2021 for the RSUs is as follows: Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 During the period ended March 31, 2021 the Company recognized $1,753 of stock-based compensation. As of March 31, 2021, there was approximately $5,096 of total unrecognized compensation cost related to the RSUs that will be recognized during 2021. The inputs used for the Earnout RSUs were as follows for the period ended March 31, 2021: Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00	Note 20 — Stock-Based Compensation Plan 2011 Stock Option Plan In March 2011, the Company adopted a stock incentive plan (the “2011 Stock Option Plan”) to promote the long-term growth and profitability of the Company. The 2011 Stock Option Plan does this by providing senior management and other employees with incentive to improve shareholder value and contribute to the growth and financial success of the Company by granting equity instruments to these stakeholders. The Company estimates the fair value of stock options related to the 2011 Stock Option Plan using the Black-Scholes pricing model. The Black-Scholes option-pricing model requires the use of subjective inputs such as stock price volatility. Changes in the inputs can materially affect the fair value estimates and ultimately the amount of stock-based compensation expense that is recognized. The expected life input is based on the contractual term as per the agreements with employees, the risk-free interest rate input is based on U.S. Treasury instruments and the volatility input is calculated based on the implied volatility of publicly traded companies in a similar industry with adjustments for size, revenues, and business life cycle. The fair value of shares was estimated based on the Company’s per share price for common stock from the Company’s last financing round. There were no grants related to the 2011 Stock Option Plan in the years ended December 31, 2020, 2019, or 2018 and no stock options were exercised during 2020, 2019, or 2018 related to the 2011 Stock Option Plan. Share-based compensation expense for the years ended December 31, 2020, 2019, and 2018 totaled approximately $45, $113, and $151, respectively, and has been included in selling, general, and administrative expenses in the accompanying consolidated statements of operations. The following table summarizes the activity number of stock options outstanding and weighted average exercise price related to the shares set aside for the 2011 Stock Option Plan. The stock options are presented on an as converted basis at the ratio of 10.1927: 2011 Options Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 1,785,251 Granted — — Forfeited (137,601) 0.55 Balance at December 31, 2018 1,647,650 0.60 Granted — — Forfeited (76,445) 0.67 Balance at December 31, 2019 1,571,205 0.59 Granted — — Forfeited — — Balance at December 31, 2020 1,571,205 0.59 Wgt. Avg. Number of Remaining Wgt. Avg. Options Contractual Life Exercise Price Outstanding 1,571,205 Exercisable 1,494,377 As of December 31, 2020, there was approximately $33 of total unrecognized compensation cost related to unvested stock based compensation arrangements, which is expected to be recognized over a weighted-average period of 0.36 years. Aggregate intrinsic value represents the total pre-tax intrinsic value, which is computed based on the difference between the option exercise price and the estimated fair value of the Company’s common stock at the time such option exercises. This intrinsic value changes based on changes in the fair value of the Company’s underlying stock. There were no stock options exercised in the years ended December 31, 2020, 2019, or 2018. The aggregate intrinsic value for stock options outstanding and options exercisable as of December 31, 2020 is $0. 2017 Stock Option Plan During the year ended December 31, 2017, the Company adopted a stock incentive plan (the “2017 Stock Option Plan”) to promote the long-term growth and profitability of the Company. The 2017 Stock Option Plan does this by providing senior management and other employees with incentive to improve shareholder value and contribute to the growth and financial success of the Company by granting various equity arrangements to these stakeholders. The terms of the 2017 Stock Option Plan provide for vesting upon certain market and performance conditions, including achieving certain triggering events including specified levels of return on investment upon a sale of the Company. Because the 2017 Stock Option plan has a market-based vesting condition, an open-form valuation model was used to value the stock options. All stock options related to the 2017 Stock Option Plan have an exercise price of $0.92 per share. All stock options related to the 2017 Stock Option Plan expire 10 years after the grant date which ranges from March 2028 to October 2029. The following summarizes the number of stock options outstanding and weighted average exercise price related to shares set aside for the 2017 Stock Option Plan. The stock options are presented on an as converted basis at the ratio of 10.1927: 2017 Options Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Wgt. Avg. Number of Remaining Wgt. Avg. Options Contractual Life Exercise Price Outstanding Exerciseable — — — The weighted average grant date fair value of options granted during the year ended December 31, 2020, was $0.61. As of December 31, 2020, there was approximately $236 of total unrecognized compensation cost related to unvested stock options related to the 2017 Stock Option Plan. Management determined no compensation expense was required for the 2017 Stock Option Plan during the years ended December 31, 2020 and 2019 as no triggering events have occurred or were determined to be probable of occurring. The weighted average inputs used for the 2017 Stock Option Plan were as follows as of December 31, 2020: Expected volatility % Expected dividend yield — % Expected term (in years) 5 years Risk-free interest rate %

Income Taxes_2

Income Taxes	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Income Taxes
Income Taxes	Note 18 — Income Taxes During the three months ended March 31, 2021, the Company recorded no income tax benefits for the net operating losses incurred in the period due to its uncertainty of realizing a benefit from those items. All of the Company’s operating losses since inception have been generated in the United States. The Company has evaluated the positive and negative evidence bearing upon its ability to realize the deferred tax assets. Management has considered the Company’s history of cumulative net losses incurred since inception through March 31, 2021 and has concluded that it is more likely than not that the Company will not realize the benefits of the deferred tax assets. Management reevaluates the positive and negative evidence at each reporting period. As of March 31, 2021 and December 31, 2020, no facts or circumstances arose that affected the Company’s determination as to the full valuation allowance established against the net deferred tax assets. Accordingly, a full valuation allowance has been established against the net deferred tax assets as of March 31, 2021 and December 31, 2020.	Note 21 — Income Taxes The Company’s income tax expense consisted of the following for the years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 Current Income Tax Expense : Federal $ — $ — $ — State and local 10 11 3 Total Current Income Tax Expense 10 11 3 Deferred Income Tax Expense : Federal — — — State and local — — — Total Income Tax Expense $ 10 $ 11 $ 3 Deferred income taxes are recorded using enacted tax rates based upon differences between financial statement and tax bases of assets and liabilities. The significant components of the Company’s estimated deferred tax assets and liabilities as of December 31, 2020 and 2019 are as follows: 2020 2019 Deferred Tax Assets : Net operating losses $ 7,042 $ 5,881 Accrued expenses 109 — Unearned premiums 466 — Contract expense 332 262 Intangible assets 204 — Other 406 809 Total deferred tax assets 8,559 6,952 Less: valuation allowance (8,559) (6,910) Net Deferred Tax Assets — 42 Deferred Tax Liabilities Fixed assets — (42) Total deferred tax liabilitie s — (42) Net Deferred Tax Liabilities — (42) Net Deferred Tax Assets/Liabilities $ — $ — A valuation allowance has been established for all deferred tax assets because the Company has incurred cumulative losses in recent years and the Company has not determined that the net deferred tax assets are more likely than not to be realized. In future periods, if the Company determines it is more likely than not that the deferred tax assets will be realized, the valuation allowance may be reduced and an income tax benefit recorded. The following table presents the change in the deferred tax asset valuation allowance for the years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 January 1, $ 6,910 $ 3,986 $ 2,008 Additions – Charged 1,649 2,924 1,731 Deductions – Charged — — — Other — — 247 December 31, $ 8,559 $ 6,910 $ 3,986 As of December 31, 2020, the Company has Federal net operating loss carryforwards of approximately $29,200, of which $6,400 will expire at various dates from 2031 – 2038 and $22,800 will carryforward indefinitely but can only be used up to 80.00% of taxable income. The Company has state net operating loss carryforwards of approximately $22,100, which will expire at various dates from 2031 — 2038. Certain tax attributes of the net operating loss carryforwards may be subject to an annual limitation as a result of a change of ownership in prior years as defined under Internal Revenue Code Section 382. The differences between income tax benefit expected at the U.S. federal statutory income tax rates of 21.00% (for 2020 and 2019) and 35.00% (for 2018) and the reported income tax expense are summarized as follows: 2020 2019 2018 Loss Before Income Tax Expense $ (6,542) $ (12,667) $ (6,557) Income tax benefit at federal statutory rates (1,372) (2,660) (1,377) State and local income taxes (79) (471) (238) Investment remeasurement — — (126) Valuation allowances 1,649 2,924 1,731 Change in fair value of redeemable convertible preferred stock tranche obligation (194) 293 57 Other 6 (75) (44) Total Income Tax Expense $ 10 $ 11 $ 3 Effective Tax Rate (0.15) % (0.09) % (0.05) % Income tax returns are filed in the U.S., including multiple state jurisdictions, and are subject to examination by tax authorities in the jurisdictions where the Company operates. The Company has open tax years from 2018 to 2020. The Company has determined that it does not have any unrecognized tax benefits or obligations as of December 31, 2020 and 2019.

Net Loss Per Share Attributab_5

Net Loss Per Share Attributable to Common Stockholders	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Net Loss Per Share Attributable to Common Stockholders
Net Loss Per Share Attributable to Common Stockholders	Note 19 — Net Loss Per Share Attributable to Common Shareholders The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the three months ended March 31, 2021 and 2020: 2021 2020 Numerator: Net Loss $ (15,022) $ (1,507) Denominator: Weighted average common shares outstanding, basic and diluted 100,817,385 58,621,041 Net loss per share attributable to common stockholders, basic and diluted $ (0.15) $ (0.03) The following table summarizes the outstanding potentially dilutive securities that were excluded from the computation of diluted net loss per share attributable to common stockholders because the impact of including them would have been antidilutive for the three months ended March 31, 2021 and 2020: 2021 2020 Public warrants 10,185,774 — Private warrants 6,074,310 — Earnout RSUs 640,421 — Earnout shares 6,945,732 — Convertible notes payable — 2,918,556 Historic warrants — 645,167 Stock options outstanding to purchase shares of common stock 6,886,205 4,926,397 Total 30,732,442 8,490,120	Note 22 — Net Loss Per Share Attributable to Common Stockholders The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders for the years ended December 31, 2020, 2019 and 2018: 2020 2019 2018 Numerator: Net loss $ (6,552) $ (12,678) $ (6,560) Denominator: Weighted average shares outstanding, basic and diluted 58,621,042 56,737,364 50,325,203 Net loss per share attributable to common stockholders, basic and diluted $ (0.11) $ (0.22) $ (0.13) The following table summarizes the outstanding potentially dilutive securities that were excluded from the computation of diluted net loss per share attributable to common stockholders because the impact of including them would have been antidilutive for the years ended December 31, 2020, 2019, and 2018: 2020 2019 2018 Convertible notes payable 3,556,335 2,876,492 — Stock warrants 777,265 699,026 239,121 Stock options outstanding to purchase shares of common stock 5,532,863 4,416,762 4,247,318 Total 9,866,462 7,992,280 4,486,439

Concentrations_2

Concentrations	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Concentrations
Concentrations	Note 20 — Concentrations The supplier who accounted for 10% or more of the Company’s total purchases and its outstanding balance of accounts payable represented 62% of total purchases for the three months ended March 31, 2021 and had outstanding accounts payable of $3,448 as of March 31, 2021. The Company believes there are other suppliers that could be substituted should the supplier become unavailable or non-competitive. For the periods ended March 31, 2021 and 2020, no retail or wholesale customers accounted for more than 10% of the Company’s revenue.	Note 23 — Concentrations The suppliers who accounted for 10% or more of the Company’s total purchases and its outstanding balance of accounts payable are presented as follows: Total purchases from vendor to total purchases for the year ended December 31, Vendor 2020 2019 2018 Vendor A 33 % — % — % Vendor B 13 % 12 % — % Accounts payable to the vendor as of December 31, Vendor 2020 2019 Vendor A $ 2,918 $ — Vendor B $ 368 $ 257 The Company believes there are other suppliers that could be substituted should the supplier become unavailable or non-competitive. For the years ended December 31, 2020, 2019, and 2018, no retail or wholesale customers accounted for more than 10% of the Company’s revenue.

Subsequent Events_2

Subsequent Events	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Subsequent Events
Subsequent Events	Note 21 — Subsequent Events In preparing these condensed consolidated financial statements, the Company has evaluated events and transactions for potential recognition or disclosure through May 25, 2021, the date the financial statements were available to be issued. Additional Hub Locations Subsequent to the quarter ended March 31, 2021, and in accordance with the Company’s strategy to generate significant growth going forward, CarLotz expanded into one new location with a hub opening in Nashville, Tennessee. The Nashville area hub is located in Madison, Tennessee, and is CarLotz’ first location in the state of Tennessee and eleventh location overall. The Company also signed lease agreements for new hubs in Charlottesville, Virginia, Bakersfield, California, Highland Park, Illinois, Denver, Colorado, Fairview, Illinois, Baton Rouge, Louisiana, Plano, Texas and Pomona, California. The new hub opening and new lease signings align with the Company’s strategic goals, which include expanding into new geographic markets while innovating and expanding the Company’s technological leadership. Inventory Sourcing In mid-May 2021, the corporate vehicle sourcing partner that accounted for more than 60% of the cars we purchased during the three months ended March 31, 2021 informed us that it would be pausing its consignment of vehicles to us, with immediate effect, due to the current strength of the wholesale market for vehicles.	Note 24 — Subsequent Events In preparing these consolidated financial statements, the Company has evaluated events and transactions for potential recognition or disclosure through May 25, 2021, the date the financial statements were available to be issued. Acamar Partners Acquisition Corp. Merger On October 21, 2020, the Company entered into an Agreement and Plan of Merger (the “Agreement”) among the Company, Acamar Partners Acquisition Corp. (“Acamar”), an entity listed on the Nasdaq Capital Market (“Nasdaq”) under the trading symbol ACAM, Acamar Partners Sub, Inc., a Delaware corporation and direct wholly owned subsidiary of Acamar (“Merger Sub”), providing for, among other things, and subject to the conditions therein, the combination of the Company and Acamar pursuant to the proposed merger of Merger Sub with and into the Company with the Company continuing as the surviving entity (the “Merger”). As a result of the Merger, each outstanding share of the Company’s common stock was converted into the right to receive newly issued shares of Acamar’s Class A common stock, as calculated pursuant to the terms of the Agreement. The business combination was accounted for as a reverse capitalization with CarLotz as the continuing company, and was consummated on January 21, 2021, after the approval of Acamar Partners' stockholders. Beginning January 22, 2021, new CarLotz' shares began trading on the Nasdaq Global Market under the ticker symbol "LOTZ." The business combination was funded with a combination of Acamar Partners' $311 million cash-in-trust and $125 million of Private Investment in Public Equity proceeds. As a result of the business combination, CarLotz received approximately $315 million of net cash in the business combination. Concurrently, CarLotz settled its debt obligations, excluding the floor plan facility and capital lease obligation. The Company extinguished the convertible notes with a principal balance of $3,500, the PPP loan with a principal balance of $1,749 and the promissory note with a principal balance of $3,000. The Company also settled its stock warrants liability, redeemable convertible preferred stock and redeemable convertible preferred stock tranche obligation with carrying values of $144, $17,560 and $2,832, respectively, as of December 31, 2020. In addition, beginning March 10, 2021, the Company entered into a $30 million floor plan credit facility with Ally Financial. Concurrently, proceeds from the agreement were used to settle outstanding debt obligations on the preexisting floor plan facility with AFC. The interest rate is the prime rate plus 2.50% per annum, or 5.75% as of the date of the agreement. Additional Hub Locations Subsequent to the year ended December 31, 2020 and in accordance with the Company's strategy to generate significant growth going forward, CarLotz expanded into three new locations with hub openings in Seattle, Washington, Orlando, Florida and Nashville, Tennessee. The Seattle-area hub located in Lynnwood, Washington, is CarLotz' first location on the west coast and ninth location overall. The Orlando-area hub is located in Merritt Island, Florida and is CarLotz' second location in the state of Florida and tenth location overall. The Nashville area hub is located in Madison, Tennessee and is CarLotz' first location in the state of Tennessee and eleventh location overall. The Company also signed lease agreements for new hubs in Charlottesville, Virginia, Bakersfield, California, Highland Park, Illinois, Denver, Colorado, Fairview, Illinois, Baton Rouge, Louisiana, Plano, Texas and Pomona, California. The new hub opening and new lease signings align with the Company's strategic goals, which include expanding into new geographic markets while innovating and expanding the Company's technological leadership. Inventory Sourcing In mid-May 2021, the corporate vehicle sourcing partner that accounted for approximately 33% of the cars we purchased during 2020 informed us that it would be pausing its consignment of vehicles to us, with immediate effect, due to the current strength of the wholesale market for vehicles.

Summary of Significant Accoun_6

Summary of Significant Accounting Policies (Policies)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Summary of Significant Accounting Policies
Basis of Presentation		Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”).
Principles of Consolidation		Principles of Consolidation The consolidated financial statements include the accounts of CarLotz, Inc. (now known as CarLotz Group, Inc.) and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Following the closing of the Merger, Former CarLotz equity holders at the effective time of the Merger will have the contingent right to receive, in the aggregate, up to 7,500,000 shares of common stock if, from the closing of the Merger until the fifth anniversary thereof, the reported closing trading price of the common stock exceeds certain thresholds. Estimating the change in fair value of the earnout liability for the earnout shares that could be earned Former CarLotz equity holders at the effective time of the Merger requires determining both the fair value valuation model to use and inputs to the valuation model. The fair value of the earnout shares was estimated by utilizing a Monte-Carlo simulation model, which is a commonly used valuation model for this type of transaction. Inputs that have a significant effect on the earnout shares valuation include the expected volatility, starting stock price, expected term, risk-free interest rate and the earnout hurdles. See Note 6 — Fair Value of Financial Instruments. Warrants that were issued by Acamar Partners (Merger warrants) and continue to exist following the closing of the Merger are accounted for as freestanding financial instruments. These warrants are classified as liabilities on the Company’s condensed consolidated balance sheets and are recorded at their estimated fair value. The estimated fair value of the warrants is determined by using the market value in an active trading market. Beginning in the first quarter of 2020, the World Health Organization declared the outbreak and spread of the COVID-19 virus a pandemic. The outbreak is disrupting supply chains and impacting production and sales across a wide range of industries. The full economic impact of this pandemic has not been determined, including the impact on the Company’s suppliers, customers and credit markets. Due to the evolving and uncertain nature of COVID-19, it is reasonably possible that it could materially impact the Company’s estimates, particularly those noted above that require consideration of forecasted financial information, in the near to medium term. The ultimate impact will depend on numerous evolving factors that the Company may not be able to accurately predict, including the duration and extent of the pandemic, the impact of federal, state, local and foreign governmental actions, consumer behavior in response to the pandemic and other economic and operational conditions the Company may face.	Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities. Estimating the change in fair value of the liability for stock warrants requires determining both the fair value valuation model to use and inputs to the valuation model. The stock warrants liability is valued using the Black Scholes pricing model, which is a commonly used valuation model for this type of financial instrument. Inputs that have a significant effect on the stock warrants liability valuation include the expected life of the stock warrants, the fair value per share of the Company’s common stock, volatility of the Company’s common stock fair value and related dividend yield. See Note 6 — Fair Value of Financial Instruments and Note 12 — Long-term Debt for additional detail. The fair value of the obligation to purchase future tranches of Series A Redeemable Convertible Preferred Stock (“Series A Preferred Stock”) was estimated by utilizing the Black Scholes pricing model and included the impact of the lack of marketability of the instruments. The key inputs for the fair value measurement include the fair value per share of the Company’s Series A Preferred Stock, expected volatility, the remaining years to liquidity and the risk-free interest rate. The most significant input impacting the fair value of the Series A Preferred Stock tranche obligation is the fair value of the Series A Preferred Stock as of each remeasurement date. The determination of the fair value per share of the redeemable convertible preferred stock is estimated by taking into consideration the most recent sales of redeemable convertible preferred stock, results obtained from third-party valuations and additional factors that are deemed relevant. As a private company, there was a lack of Company-specific historical and implied volatility information of the Company’s Series A Preferred Stock. Therefore, estimates of expected stock volatility are based on the historical volatility of publicly traded peer companies for a term equal to the remaining contractual term of the obligations. The risk-free interest rate was determined by reference to the U.S. Treasury yield curve for time periods approximately equal to the remaining years to liquidity. See Note 6 — Fair Value of Financial Instruments and Note 19 — Redeemable Convertible Preferred Stock for additional detail. Beginning in the first quarter of 2020, the World Health Organization declared the outbreak and spread of the COVID-19 virus a pandemic. The outbreak is disrupting supply chains and impacting production and sales across a wide range of industries. The full economic impact of this pandemic has not been determined, including the impact on the Company's suppliers, customers, and credit markets. Due to the evolving and uncertain nature of COVID-19, it is reasonably possible that it could materially impact the Company's estimates, particularly those noted above that require consideration of forecasted financial information, in the near to medium term. The ultimate impact will depend on numerous evolving factors that the Company may not be able to accurately predict, including the duration and extent of the pandemic, the impact of federal, state, local, and foreign governmental actions, consumer behavior in response to the pandemic and other economic and operational conditions the Company may face.
Cash and Cash Equivalents		Cash and Cash Equivalents Cash and cash equivalents include highly liquid investments that are due on demand or have a remaining maturity of three months or less at the date of purchase. The Company places its cash with financial institutions and has balances that generally exceed federally insured amounts.
Restricted Cash	Restricted Cash As of March 31, 2021 and December 31, 2020, restricted cash included approximately $227 and $605, respectively. The restricted cash is legally and contractually restricted as collateral for two letters of credit issued on behalf of CarLotz Group, Inc. and of the reinsurance companies for the payment of claims.	Restricted Cash As of December 31, 2020 and 2019, restricted cash was approximately $605 and $888, respectively. The restricted cash is legally and contractually restricted as collateral for two letters of credit issued on behalf of the Company and of the reinsurance subsidiaries for the payment of claims.
Marketable Securities	Marketable Securities The Company and its reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of fixed income debt securities. The Company has investments in marketable securities that are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in other income (expense) in the Company’s condensed consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of debt securities are recognized in Accumulated Other Comprehensive Income in the Company’s condensed consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company’s net income only when such securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security’s cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company’s marketable securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issue and the Company’s intent to sell, or whether it is more likely than not the Company will be required to sell the investment before recovery of the investment’s amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these securities, the Company will write down these investments to fair value through earnings.	Marketable Securities The Company's reinsurance subsidiaries invest excess cash in marketable securities in the ordinary course of conducting their operations and maintain a portfolio of marketable securities primarily comprised of equity and fixed income debt securities. The Company's investments in marketable securities are classified as available-for-sale securities and are reported at fair value. Unrealized gains and losses related to changes in the fair value of equity securities are recognized in other income (expense) in the Company's consolidated statements of operations. Unrealized gains and losses related to changes in the fair value of available-for-sale debt securities are recognized in Accumulated Other Comprehensive Income in the Company's consolidated balance sheets. Changes in the fair value of available-for-sale debt securities impact the Company's net income only when such debt securities are sold or when other-than-temporary impairment is recognized. Realized gains and losses on the sale of securities are determined by specific identification of each security's cost basis and are recognized on the trade date. Management determines the appropriate classification of its investments at the time of purchase and re-evaluates the designations at each balance sheet date. The Company may sell certain of the Company's marketable debt securities prior to their stated maturities for strategic reasons including, but not limited to, anticipation of credit deterioration and duration management. The Company reviews its fixed maturity debt securities on a regular basis to evaluate whether or not any security has experienced an other-than-temporary decline in fair value. The Company considers factors such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issuer and the Company's intent to sell, or whether it is more likely than not the Company will be required to sell the debt security before recovery of the investment's amortized cost basis. If the Company believes that an other-than-temporary decline exists in one of these debt securities, the Company will write down these debt securities to fair value through earnings.
Capitalized website and internal-use software costs	Capitalized website and internal-use software costs The Company capitalizes costs associated with customized internal-use software systems that have reached the application development stage. Such capitalized costs include external direct costs utilized in developing or obtaining the applications and payroll and payroll-related expenses for employees who are directly associated with the applications. Capitalization of such costs begins when the preliminary project stage is complete and ceases at the point in which the project is substantially complete and ready for its intended purpose. Amortization is computed using the straight-line method over 3 years.
Advertising Costs	Advertising Costs The Company expenses advertising costs as they are incurred. Advertising costs are included in selling, general and administrative expenses on the accompanying condensed consolidated statements of operations. Advertising expenses were approximately $2,526 and $541 for the three months ended March 31, 2021 and 2020, respectively.
Accounts Receivable, Net		Accounts Receivable, Net Accounts receivable consist primarily of contracts in transit that represent amounts due from financial institutions on retail installment contracts from retail vehicle sales, and also includes receivables related to wholesale vehicle sales.
Concentration of Credit Risk	Concentration of Credit Risk Concentrations of credit risk with respect to accounts receivables are limited due to the large diversity and number of customers comprising the Company’s customer base.	Concentration of Credit Risk Concentrations of credit risk with respect to accounts receivables are limited due to the large diversity and number of customers comprising the Company’s customer base.
Inventories		Inventories All inventories, which are comprised of vehicles and parts held for sale, are reported at the lower of cost or net realizable value. Cost of vehicle inventory is determined on a specific identification basis. Vehicles held on consignment are not recorded in the Company’s inventory balance, as title to those vehicles, and, therefore control of the vehicle, remain with the consignors until a customer purchases the vehicle and the vehicle is delivered.
Property and Equipment		Property and Equipment Property and equipment are stated at cost. Expenditures for maintenance, repairs and minor renewals are charged to expense as incurred. Major renewals and betterments are capitalized. Property held under capital leases are stated at the present value of minimum lease payments less accumulated amortization. Property held under capital leases are amortized using the straight-line method over the shorter of the lease term or estimated useful life of the asset. Depreciation on owned property and equipment is calculated using the straight-line method over the estimated useful lives of the assets as follows: Leasehold Improvements Lesser of 15 years or underlying lease terms Equipment, Furniture and Fixtures 1 — 5 years Corporate Vehicles 5 years
Lease Vehicles, net		Lease Vehicles, net The Company leases vehicles to customers with lease terms that are typically 1 – 4 years. The leases are accounted for as operating leases. Lease income is recorded on a straight line basis over the period the vehicle is rented. Depreciation on the lease vehicles is calculated using the straight-line method over the estimated useful life.
Reinsurance - Deferred Acquisition Costs		Reinsurance — Deferred Acquisition Costs The Company defers certain costs of acquiring new contracts. These costs are limited to incremental direct costs that result from the successful acquisition of new contracts and would not have been incurred, had the acquisition of the contract not occurred. Deferred acquisition costs (“DAC”) consist primarily of amounts paid for ceding fees and premium taxes and are amortized over the term of the contracts in relation to premiums earned. Acquisition costs that do not result in the successful acquisition of new contracts, or that would have been incurred even if a new contract was not acquired, are expensed as incurred. DAC are included in other assets on the consolidated balance sheets.
Floor Plan Notes Payable		Floor Plan Notes Payable The Company classifies notes payable for inventory purchased as “Floor plan notes payable” on the accompanying consolidated balance sheets. The Company presents borrowings and repayments on Floor plan notes payable within Cash flows from financing activities on the consolidated statements of cash flows because the Company uses a third-party lender for its floor plan financing arrangement.
Classification and Accretion of Redeemable Convertible Preferred Stock		Classification and Accretion of Redeemable Convertible Preferred Stock The Company has previously classified its Series A Preferred Stock outside of stockholders’ equity (deficit) because the shares contained certain redemption features that were not solely within the control of the Company. Costs incurred in connection with the issuance of Series A Preferred Stock, as well as the recognition of the redeemable convertible preferred stock tranche obligation, are recorded as a reduction of gross proceeds from issuance. The Series A Preferred Stock was not redeemable as of the periods of these financial statements because while the holders of the Series A Preferred Stock had the power to direct the Company’s actions through its control of the Company’s board of directors, the deemed liquidation provision is considered a substantive condition that was contingent on the identification of a market participant willing to purchase the Company’s assets for consideration in an amount sufficient to distribute the redemption amount to the holders of the Series A Preferred Stock. Since the Series A Preferred Stock was not currently redeemable and it was not currently probable that it would become redeemable because a change of control feature is not considered probable until the change of control actually occurs, the net carrying value of Series A Preferred Stock was not accreted to its redemption value. See Note 19 — Redeemable Convertible Preferred Stock for additional details. See Note 3 — Reverse Recapitalization for the impact of the reverse recapitalization on the redeemable convertible preferred stock.
Reinsurance - Contract Reserves		Reinsurance — Contract Reserves The Company sells certain finance and insurance contracts that are underwritten by third parties. The Company, through its reinsurance subsidiaries, reinsures those contracts, thereby assuming the risk of loss on the underlying insurance contracts. The Company establishes insurance reserves in accordance with ASC 944, Financial Services — Insurance . These amounts are recorded as Other liabilities on the consolidated balance sheets.
Contract Reserves		Contract Reserves Subsequent to the sale of a vehicle to a customer, the Company sells the related retail installment contracts to financial institutions on a non-recourse basis. The Company receives commissions from the financial institutions for these sales. The Company also receives commissions from other third-party providers for the arrangement of the sale of other products such as guaranteed vehicle protection insurance. The Company is subject to future chargebacks in the event of an early contract termination or payoff by customers. A reserve for future amounts estimated to be charged back is recorded as a reduction of Finance and insurance, net in the consolidated statements of operations, at the time of sale. The chargeback reserve is estimated based on the Company’s historical chargeback results and is recorded in Other liabilities on the consolidated balance sheets.
Legal Contingencies		Legal Contingencies The Company is involved in various claims and legal proceedings that arise in the normal course of business. The Company records an accrual for legal contingencies when it determines that it is probable that it has incurred a liability and it can reasonably estimate the amount of the loss. See Note 18 — Commitments and Contingencies for additional details.
Fair Value Measurements		Fair Value Measurements Fair value as defined under U.S. GAAP is an exit price, representing the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. U.S. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. These tiers include: Level 1: Observable inputs such as quoted prices in active markets. Level 2: Inputs other than quoted prices in active markets that are either directly or indirectly observable. Level 3: Unobservable inputs about which little or no market data exists, therefore requiring an entity to develop its own assumptions. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment and affects how the measurement is classified within the fair value hierarchy levels. See Note 6 — Fair Value of Financial Instruments for additional information.
Revenues		Revenues The Company recognizes revenue upon transfer of control of goods or services to customers, in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. Control passes to the retail and wholesale vehicle sales customer when the title is delivered to the customer, who then assumes control of the vehicle.
Cost of Sales		Cost of Sales Cost of sales includes the cost to acquire used vehicles and the related reconditioning costs to prepare the vehicles for resale. Vehicle reconditioning costs include parts, labor, inbound transportation costs, and other costs such as mechanical inspection, vehicle preparation supplies and repair costs. Cost of sales also includes any necessary adjustments to reflect vehicle inventory at the lower of cost or net realizable value.
Sales Tax		Sales Tax The Company collects and remits sales tax on vehicle sales and sales of parts. Sales tax collected is not included in revenues and remittances are not included in cost of sales. Sales tax collected is recorded as a liability, with the liability relieved upon remittance of payments to tax authorities.
Selling, General, and Administrative Expenses		Selling, General, and Administrative Expenses Selling, general and administrative expenses primarily include compensation and benefits, advertising, facilities cost, technology expenses, logistics, and other administrative expenses. Advertising costs are expensed as incurred and were $3,199, $3,803, and $1,871 for the years ended December 31, 2020, 2019, and 2018, respectively.
Equity-Based Compensation		Equity-Based Compensation The Company classifies equity-based awards granted in exchange for services as either equity awards or liability awards. The classification of an award as either an equity award or a liability award is generally based upon cash settlement options. Both equity and liability awards are measured based on the fair value of the award at the grant date, however, liability awards are then re-measured to fair value each reporting period. The Company recognizes equity-based compensation on a straight-line basis over the award’s requisite service period, which is generally the vesting period of the award, less actual forfeitures. For equity and liability awards earned based on performance or upon occurrence of a contingent event, when and if the awards will be earned is estimated. If an award is not considered probable of being earned, no amount of equity-based compensation is recognized. If the award is deemed probable of being earned, related equity-based compensation is recorded over the estimated service period. To the extent the estimate of awards considered probable of being earned changes, the amount of equity-based compensation recognized will also change. See Note 20 — Stock-Based Compensation Plan for additional information on equity-based compensation.
Redeemable Convertible Preferred Stock Tranche Obligation		Redeemable Convertible Preferred Stock Tranche Obligation The Company classified the Series A Preferred Stock tranche obligations for the future purchase, and option to purchase, three additional tranches of Series A Preferred Stock (See Note 6 — Fair Value of Financial Instruments and Note 19 — Redeemable Convertible Preferred Stock for additional detail) as a liability on its consolidated balance sheets as the Series A Preferred Stock tranche obligations were freestanding financial instruments that required the Company to transfer equity instruments upon future closings of the Series A Preferred Stock. The Series A Preferred Stock tranche obligations were initially recorded at fair value upon the date of issuance and were subsequently remeasured to fair value at each reporting date. Changes in the fair value of the Series A Preferred Stock tranche obligation were recognized as a component of Other Income (Expense), net in the consolidated statements of operations. Changes in the fair value of the second Series A Preferred Stock tranche obligations were recognized until the tranche obligations were fulfilled in the first and second quarter of 2019.
Income Tax		Income Tax Income taxes are provided for the tax effects of transactions reported in the consolidated financial statements and consist of taxes currently due plus deferred taxes. Deferred taxes are recognized for differences between the basis of assets and liabilities for financial statement and income tax purposes. The differences relate primarily to depreciable assets (use of different depreciation methods and lives for financial statement and income tax purposes), contract expenses, and certain accrued expenses. Deferred tax assets and liabilities represent future tax consequences of those differences, which will either be taxable or deductible when the assets and liabilities are recovered or settled. Deferred income taxes are recorded using enacted tax rates based upon differences between financial statement and tax bases of assets and liabilities. A valuation allowance has been established for all deferred tax assets because the Company has incurred cumulative losses in recent years and the Company has not determined that the net deferred tax assets are more likely than not to be realized. In future periods, if the Company determines it is more likely than not that the deferred tax assets will be realized, the valuation allowance may be reduced, and an income tax benefit recorded.
Net Loss Per Share Attributable to Common Stockholders		Net Loss Per Share Attributable to Common Stockholders Prior to the impact of the retroactive application of the recapitalization, the Company’s redeemable convertible preference shares were participating securities as the holders of the Company’s redeemable convertible preference shares are entitled to participate in dividends with ordinary shares. Net losses were not allocated to the Company’s redeemable convertible preference shares as the holders of the Company’s redeemable convertible preference shares do not have a contractual obligation to share in any losses. Subsequent to the retroactive application of the recapitalization, basic and diluted net loss per share attributable to ordinary shareholders is calculated by dividing net loss attributable to Company’s ordinary shareholders by the weighted-average number of recapitalized ordinary shares outstanding for the period. Diluted earnings per share attributable to common stockholders adjusts basic earnings per share for all potentially dilutive common stock equivalents outstanding during the period. Potentially dilutive securities consisted of stock options, warrants, and convertible notes payable. Since the Company has reported net losses for all periods presented, the Company has excluded all potentially dilutive securities from the calculation of the diluted net loss per share attributable to common stockholders as their effect is antidilutive and accordingly, basic and diluted net loss per share attributable to common stockholders is the same for all periods presented. (See Note 22 — Net Loss Per Share Attributable to Common Stockholders for additional detail)
Segments		Segments The Company’s chief operating decision maker (“CODM”) is its chief executive officer. The Company derives its revenue primarily from sales of automobiles via retail and wholesale channels. The CODM reviews financial information presented on a consolidated basis for the purposes of allocating resources and evaluating financial performance. Accordingly, the Company determined that it has one reportable segment.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In January 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities . Subsequently, the FASB issued ASU 2018-03, Technical Corrections and Improvements to Financial Instruments-Overall. ASU 2016-01 requires equity investments except those under the equity method of accounting to be measured at fair value with the changes in fair value recognized in net income. ASU 2016-01 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2018, and interim periods within annual periods beginning after December 15, 2019. The Company adopted ASU 2016-01 on January 1, 2019 for annual periods and on January 1, 2020 for interim periods within annual periods. The adoption of ASU 2016-01 did not have a material impact on the Company’s condensed consolidated financial statements because the Company did not make its first investment in securities impacted by the standard until the first quarter of the year ending December 31, 2021. In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842). The standard will affect all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases, to clarify how to apply certain aspects of the new leases standard. ASU 2016-02, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, and early adoption is permitted. For leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, lessees and lessors must apply a modified retrospective transition approach. While the Company expects the adoption of this standard to result in an increase to the reported assets and liabilities, it has not yet determined the full impact the adoption of this standard will have on its financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. ASU 2016-13, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates for fiscal years beginning after December 15, 2022 and for interim periods within those fiscal years. The Company is currently evaluating the impact of this standard to its financial statements. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement ( Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement, which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. The Company adopted ASU 2018-13 on January 1, 2020 and the adoption of this standard did not have a material impact on the condensed consolidated financial statements or related disclosures. In August 2018, the FASB issued ASU 2018-15, Intangibles-Goodwill and Other- Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company adopted ASU 2018-15 on January 1, 2020 for annual periods, and the adoption of this standard did not have a material impact on the condensed consolidated financial statements or related disclosures. In October 2018, the FASB issued ASU 2018-17, Consolidation (Topic 810), Targeted Improvements to Related Party Guidance for Variable Interest Entities , which addresses the cost and complexity of financial reporting associated with consolidation of variable interest entities (“VIE”). The new guidance must be applied on a retrospective basis as a cumulative-effect adjustment as of the date of adoption. The Company adopted ASU 2018-17 on January 1, 2020, and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures because the Company does not currently have any indirect interests through related parties under common control for which it receives decision making fees. In December 2020, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which is intended to simplify various aspects related to accounting for income taxes. ASU 2019-12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019-12 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the impact of this standard on its financial statements.	Adoption of New Accounting Pronouncements In August 2018, the FASB issued ASU 2018‑13, Fair Value Measurement (Topic 820): Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement , which eliminates certain disclosure requirements for fair value measurements for all entities, requires public entities to disclose certain new information and modifies some disclosure requirements. ASU 2018‑13 is effective for all entities for fiscal years beginning after December 15, 2019 and for interim periods within those fiscal years , and early adoption is permitted. An entity is permitted to early adopt either the entire standard or only the provisions that eliminate or modify requirements. The Company adopted ASU 2018-13 on January 1, 2020 and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures. In August 2018, the FASB issued ASU 2018‑15, Intangibles — Goodwill and Other — Internal — Use Software (Subtopic 350‑40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement that is a Service Contract . This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. ASU 2018‑15 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2019, and interim periods within annual periods beginning after December 15, 2020, with early adoption permitted. The Company adopted ASU 2018-15 on January 1, 2020 for annual periods and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures. In October 2018, the FASB issued ASU 2018‑17, Consolidation (Topic 810), Targeted Improvements to Related Party Guidance for Variable Interest Entities , which addresses the cost and complexity of financial reporting associated with consolidation of variable interest entities (“VIE”). ASU 2018‑17 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2019, and interim periods within annual periods beginning after December 15, 2020, with early adoption permitted. The new guidance must be applied on a retrospective basis as a cumulative-effect adjustment as of the date of adoption. The Company adopted ASU-2018-17 on January 1, 2020 and the adoption of this standard did not have a material impact on the consolidated financial statements or related disclosures because the Company does not currently have any indirect interests through related parties under common control for which it receives decision making fees. Recently Issued Accounting Pronouncements Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) . The standard will affect all entities that lease assets and will require lessees to recognize a lease liability and a right-of-use asset for all leases (except for short-term leases that have a duration of less than one year) as of the date on which the lessor makes the underlying asset available to the lessee. For lessors, accounting for leases is substantially the same as in prior periods. In July 2018, the FASB issued ASU 2018-10, Codification Improvements to Topic 842, Leases, to clarify how to apply certain aspects of the new leases standard. ASU 2016-02, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, and early adoption is permitted. For leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, lessees and lessors must apply a modified retrospective transition approach. While the Company expects the adoption of this standard to result in an increase to the reported assets and liabilities, it has not yet determined the full impact the adoption of this standard will have on its financial statements and related disclosures. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses: Measurement of Credit Losses on Financial Instruments , which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. ASU 2016-13, as subsequently amended for various technical issues, is effective for emerging growth companies following private company adoption dates for fiscal years beginning after December 15, 2022 and for interim periods within those fiscal years. The Company is currently evaluating the impact of this standard to the consolidated financial statements. In December 2019, the FASB issued ASU 2019‑12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which is intended to simplify various aspects related to accounting for income taxes. ASU 2019‑12 removes certain exceptions to the general principles in Topic 740 and also clarifies and amends existing guidance to improve consistent application. ASU 2019‑12 is effective for emerging growth companies following private company adoption dates in fiscal years beginning after December 15, 2021, and interim periods within annual periods beginning after December 15, 2022, with early adoption permitted, including adoption in an interim period. The Company is currently evaluating the impact of this standard to the consolidated financial statements.

Merger (Tables)

Merger (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Merger
Schedule for merger financing	Prior to the Merger, Former CarLotz and Acamar Partners filed separate standalone federal, state and local income tax returns. As a result of the Merger, structured as a reverse acquisition for tax purposes, Acamar Partners was renamed CarLotz, Inc., and became the parent of the consolidated filing group, with Former CarLotz as a subsidiary. Recapitalization Cash–Acamar Partners’ trust and cash $ 309,999 Cash–PIPE 125,000 Less: consideration delivered to existing shareholders of Former CarLotz (62,693) Less: consideration to pay accrued dividends (4,853) Less: transaction costs and advisory fees paid (47,579) Less: payments on cash considerations associated with stock options (2,465) Net contributions from Merger and PIPE financing 317,409 Liabilities relieved: preferred stock obligation 2,832 Liabilities relieved: KAR/AFC note 3,625 Liabilities relieved: Historic warrant liability: 144 Less: earnout shares liability (74,285) Less: warrants liability (39,025)
Schedule of stock warrants	The following is an analysis of the warrants to purchase shares of the Company’s stock deemed acquired as part of the Merger and outstanding during the three months ended March 31, 2021: March 31, 2021 Stock warrants outstanding–Public 10,185,774 Stock warrants outstanding–Private 6,074,310 Stock warrants cancelled — Stock warrants exercised — Stock warrants outstanding 16,260,084	2020 2019 Stock warrants outstanding, January 1 699,026 239,121 Stock warrants issued with convertible notes payable 78,239 459,905 Stock warrants cancelled — — Stock warrants exercised — — Stock warrants outstanding, December 31 777,265 699,026

Revenue Recognition (Tables)_2

Revenue Recognition (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Revenue Recognition
Schedule of disaggregated revenue under ASC 606	Three Months Ended March 31, 2021 Fleet Vehicle Sales Management Total Retail vehicle sales $ 50,383 $ — $ 50,383 Wholesale vehicle sales 4,568 — 4,568 Finance and insurance, net 1,554 — 1,554 Lease income, net — 107 107 Total Revenues $ 56,505 $ 107 $ 56,612 Three Months Ended March 31, 2020 Fleet Vehicle Sales Management Total Retail vehicle sales $ 21,042 $ — $ 21,042 Wholesale vehicle sales 3,311 — 3,311 Finance and insurance, net 892 — 892 Lease income, net — 145 145 Total Revenues $ 25,245 $ 145 $ 25,390	2020 Fleet Vehicle Sales Management Total Retail vehicle sales $ 104,253 $ — $ 104,253 Wholesale vehicle sales 9,984 — 9,984 Finance and insurance, net 3,898 — 3,898 Lease income, net — 490 490 Total Revenues $ 118,135 $ 490 $ 118,625 2019 Fleet Vehicle Sales Management Total Retail vehicle sales $ 90,382 $ — $ 90,382 Wholesale vehicle sales 8,454 — 8,454 Finance and insurance, net 3,117 — 3,117 Lease income, net — 533 533 Total Revenues $ 101,953 $ 533 $ 102,486 2018 Fleet Vehicle Sales Management Total Retail vehicle sales $ 53,448 $ — $ 53,448 Wholesale vehicle sales 3,153 — 3,153 Finance and insurance, net 1,608 — 1,608 Lease income, net — 142 142 Total Revenues $ 58,209 $ 142 $ 58,351
Schedule of revenues and cost of sales for retail and wholesale vehicle sales	The following table summarizes revenues and cost of sales for retail and wholesale vehicle sales for the three months ended March 31, 2021 and 2020: 2021 2020 Retail vehicles: Retail vehicle sales $ 50,383 $ 21,042 Retail vehicle cost of sales 48,917 19,555 Gross Profit – Retail Vehicles $ 1,466 $ 1,487 Wholesale vehicles: Wholesale vehicle sales $ 4,568 $ 3,311 Wholesale vehicle cost of sales 5,687 3,363 Gross Profit – Wholesale Vehicles $ (1,119) $ (52)	2020 2019 2018 Retail vehicles: Retail vehicle sales $ 104,253 $ 90,382 $ 53,448 Retail vehicle cost of sales 96,983 84,534 48,523 Gross Profit – Retail Vehicles $ 7,270 $ 5,848 $ 4,925 Wholesale vehicles: Wholesale vehicle sales $ 9,984 $ 8,454 $ 3,153 Wholesale vehicle cost of sales 10,386 9,246 4,185 Gross Profit – Wholesale Vehicles $ (402) $ (792) $ (1,032)

Marketable Securities (Tables_2

Marketable Securities (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Marketable Securities
Summary of amortized cost, gross unrealized gains and losses, and estimated fair values of the Company's investments in fixed maturity debt securities	March 31, 2021 Amortized Gross Gross Cost/ Unrealized Unrealized Cost Basis Gains Losses Fair Value U.S. Treasuries $ 181 $ 2 $ — $ 183 Corporate bonds 63,197 2 (111) 63,088 Municipal bonds 24,003 5 (14) 23,994 Commercial paper 130,659 — — 130,659 Total Fixed Maturity Debt Securities $ 218,040 $ 9 $ (125) $ 217,924 December 31, 2020 Amortized Gross Gross Cost/ Unrealized Unrealized Cost Basis Gains Losses Fair Value U.S. Treasuries $ 240 $ 6 $ — $ 246 Corporate bonds 261 5 (1) 265 U.S. states, territories and political subdivisions 141 5 — 146 Total Fixed Maturity Debt Securities $ 642 $ 16 $ (1) $ 657	​ Amortized Gross Gross Estimated Cost Unrealized Gains Unrealized Losses Fair Value Fixed Maturity Debt Securities ​ U.S. Treasuries $ 240 $ 6 $ — $ 246 Corporates 261 5 (1) 265 U.S. states, territories, and political subdivisions 141 5 — 146 Total Fixed Maturity Debt Securities $ 642 $ 16 $ (1) $ 657
Summary of amortized cost and estimated fair value of the Company's fixed maturity debt securities	The amortized cost and fair value of the Company’s fixed maturity debt securities as of March 31, 2021 by contractual maturity are shown below. Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Amortized Cost Fair Value Due in one year or less $ 173,174 $ 173,145 Due after one year through five years 44,540 44,457 Due after five years through ten years 326 322 Total $ 218,040 $ 217,924	Amortized Estimated ​ Cost Fair Value Due in one year or less $ 77 $ 78 Due after one year through five years 379 388 Due after five years through ten years 186 191 Total $ 642 $ 657
Summary of gross unrealized losses in fixed maturity debt securities	March 31, 2021 Less Than 12 Months 12 Months or More Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Fair Value Losses Fair Value Losses Fair Value Losses Corporate bonds $ 23,226 $ (31) $ 39,736 $ (80) $ 62,962 $ (111) Municipal bonds 18,286 (11) 1,135 (3) 19,421 (14) Total Fixed Maturity Debt Securities $ 41,512 $ (42) $ 40,871 $ (83) $ 82,533 $ (125) December 31, 2020 Less Than 12 Months 12 Months or More Total Estimated Unrealized Estimated Unrealized Estimated Unrealized Fair Value Losses Fair Value Losses Fair Value Losses Corporate bonds $ 39 $ (1) $ — $ — $ 39 $ (1) Total Fixed Maturity Debt Securities $ 39 $ (1) $ — $ — $ 39 $ (1)	Less Than 12 Months 12 Months or more Total Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Estimated Fair Value Unrealized Losses Fixed maturity debt securities: Corporate Bonds $ 39 $ (1) $ — $ — $ 39 $ (1) Total Fixed Maturity Debt Securities $ 39 $ (1) $ — $ — $ 39 $ (1)
Summary of cost and estimated fair values of the Company's investments in equity securities	March 31, 2021 Estimated Cost Fair Value Equity securities $ 433 $ 500 December 31, 2020 Estimated Cost Fair Value Equity securities $ 335 $ 375	Estimated ​ Cost Fair Value Equity securities $ 335 $ 375
Summary of proceeds from sales and maturities, gross realized gains, gross realized losses, and net realized gains (losses) from sales and maturities of fixed maturity debt securities	March 31, 2021 Gross Gross Net Realized Realized Realized Proceeds Gains Losses Losses Fixed maturity debt securities $ 59 $ — $ — $ — Equity securities — — — — Total Marketable Securities $ 59 $ — $ — $ — March 31, 2020 Gross Gross Net Realized Realized Realized Proceeds Gains Losses Losses Fixed maturity debt securities $ 18 $ — $ (3) $ (3) Equity securities — — — — Total Marketable Securities $ 18 $ 1 $ (3) $ (3)	Gross Gross Net ​ Proceeds Realized Gains Realized Losses Realized (Losses) Fixed maturity debt securities $ 18 $ — $ — $ — Equity securities 50 1 (2) (1) Total Marketable Securities $ 68 $ 1 $ (2) $ (1)

Fair Value of Financial Instr_8

Fair Value of Financial Instruments (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Fair Value of Financial Instruments
Schedule of Company's assets and liabilities that are measured at fair value on a recurring basis	March 31, 2021 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 37,449 $ — $ — $ 37,449 Equity securities 500 — — 500 Fixed maturity debt securities, including cash equivalents — 233,193 233,193 Total Assets: $ 37,949 $ 233,193 $ — $ 271,142 Liabilities: Merger warrant liability 16,705 9,962 — 26,667 Earnout shares — — 42,438 42,438 Total Liabilities: $ 16,705 $ 9,962 $ 42,438 $ 69,105 December 31, 2020 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 405 $ — $ — $ 405 Equity securities 375 — — 375 Fixed maturity debt securities 246 411 — 657 Total Assets: $ 1,026 $ 411 $ — $ 1,437 Liabilities: Redeemable convertible preferred stock tranche obligation $ — $ — $ 2,832 $ 2,832 Historic warrants liability — — 144 144 Total Liabilities: $ — $ — $ 2,976 $ 2,976	2020 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 405 $ — $ — $ 405 Equity securities 375 — — 375 Fixed maturity debt securities 246 411 — 657 Total Assets: 1,026 411 — 1,437 Liabilities: Redeemable convertible preferred stock tranche obligation — — 2,832 2,832 Stock warrants liability — — 144 144 Total Liabilities: $ — $ — $ 2,976 $ 2,976 2019 Level 1 Level 2 Level 3 Total Assets: Money market funds $ 688 $ — $ — $ 688 Liabilities: Redeemable convertible preferred stock tranche obligation — — 3,755 3,755 Stock warrants liability — — 115 115 Total Liabilities: $ — $ — $ 3,870 $ 3,870
Schedule of significant inputs for Level 3 fair value measurement	January 1, Change in March 31, 2021 Issuances Settlements fair value 2021 Redeemable convertible preferred stock tranche obligation $ 2,832 $ — $ (2,832) $ — $ — Historic warrants liability 144 — (144) — — Earnout shares — 74,284 — (31,846) 42,438 Total $ 2,976 $ 74,284 $ (2,976) $ (31,846) $ 42,438 January 1, Change in March 31, 2020 Issuances Settlements fair value 2020 Redeemable convertible preferred stock tranche obligation $ 3,755 $ — $ — $ (284) $ 3,471 Historic warrants liability 115 — — (13) 102 Total $ 3,870 $ — $ — $ (297) $ 3,573	Change in Year-ended December 31, 2020 January 1, Issuances Settlements Fair Value December 31, Redeemable convertible preferred stock tranche obligation $ 3,755 $ — $ — $ (923) $ 2,832 Stock warrants liability 115 15 — 14 144 Total $ 3,870 $ 15 $ — $ (909) $ 2,976 Change in Year-ended December 31, 2019 January 1, Issuances Settlements Fair Value December 31, Redeemable convertible preferred stock tranche obligation $ 3,261 $ — $ (902) $ 1,396 $ 3,755 Stock warrants liability 67 72 — (24) 115 Total $ 3,328 $ 72 $ (902) $ 1,372 $ 3,870
Schedule of reconciliation of liabilities measured at fair value using significant unobservable inputs	March 31, 2021 January 21, 2021 Expected volatility 80.00 % 80.00 % Starting stock price $ 7.13 $ 11.31 Expected term (in years) 4.7 years 5 years Risk-free interest rate 0.87 % 0.45 % Earnout hurdle $ 12.50–$15.00 $ 12.50–$15.00	2020 2019 Expected volatility % % Expected dividend yield 0.00 % 0.00 % Expected term (in years) 4 years 5 years Risk-free interest rate % % Marketability discount % %

Accounts Receivable, Net (Tab_2

Accounts Receivable, Net (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accounts Receivable, Net
Schedule of accounts receivables	​ March 31, December 31, 2021 2020 Contracts in transit $ 8,521 $ 3,321 Trade 243 240 Finance commission 329 132 Other 298 506 Total 9,391 4,199 Allowance for doubtful accounts (67) (67) Total Accounts Receivable, net $ 9,324 $ 4,132	2020 2019 Contracts in transit $ 3,321 $ 2,645 Trade 240 202 Finance commission 132 87 Other 506 349 Total 4,199 3,283 Allowance for doubtful accounts (67) (27) Total Accounts Receivable, net $ 4,132 $ 3,256

Inventory and Floor Plan Note_6

Inventory and Floor Plan Notes Payable (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Inventory and Floor Plan Notes Payable
Inventory and Floor Plan Notes Payable	​ March 31, December 31, 2021 2020 Used vehicles $ 9,274 $ 11,202 Parts 37 — Total $ 9,311 $ 11,202	2020 2019 Used vehicles $ 11,202 $ 7,592 Parts — 33 Total $ 11,202 $ 7,625

Property and Equipment, Net (_2

Property and Equipment, Net (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Property and Equipment, Net
Schedule of property and equipment	March 31, December 31, 2021 2020 Capital lease asset building $ 1,305 $ 1,305 Leasehold improvements 887 702 Furniture, fixtures and equipment 1,161 760 Corporate vehicles 143 143 Total property and equipment 3,496 2,910 Less: accumulated depreciation (1,147) (1,042) Property and Equipment, net $ 2,349 $ 1,868	2020 2019 Capital lease asset building $ 1,305 $ — Leasehold improvements 702 688 Furniture, fixtures, and equipment 760 715 Corporate vehicles 143 104 Total property and equipment 2,910 1,507 Less: accumulated depreciation (1,042) (876) Property and Equipment, net $ 1,868 $ 631

Other Assets (Tables)_2

Other Assets (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Assets
Schedule of other assets	March 31, December 31, 2021 2020 Other Current Assets: Lease receivable, net $ 22 $ 36 Stock issuance costs 47 72 Prepaid expenses 5,857 679 Interest receivable 729 — Deferred transaction costs — 5,892 Total Other Current Assets $ 6,655 $ 6,679 Other Assets: Lease receivable, net $ 16 $ 16 Stock issuance costs 72 48 Security deposits 3,249 235 Total Other Assets $ 3,337 $ 299	2020 2019 Other Current Assets: Lease receivable, net $ 36 $ 13 Deferred acquisition costs 72 32 Prepaid expenses 679 189 Stock issuance costs 5,892 — Total Other Current Assets $ 6,679 $ 234 Other Assets: Lease receivable, net $ 16 $ 38 Deferred acquisition costs 48 50 Security deposits 235 255 Total Other Assets $ 299 $ 343
Schedule of deferred acquisitions cost		2020 2019 Beginning $ 82 $ 22 Written 173 93 Amortized (135) (33) Ending 120 82 Less: current portion 72 32 Non-current 48 50 Total Deferred Acquisition Costs $ 120 $ 82

Long-term Debt (Tables)_2

Long-term Debt (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Long-term Debt
Summary of long-term debt, including capital lease obligations	​ March 31, December 31, 2021 2020 Capital lease obligation $ 1,305 $ 1,305 Promissory note — 2,990 Convertible notes payable, net — 3,325 Paycheck Protection Program loan — 1,749 ​ 1,305 9,369 Current portion of long-term debt (55) (6,370) Long-term Debt $ 1,250 $ 2,999	2020 2019 Term note payable $ — $ 9 Capital lease obligation 1,305 — Promissory note 2,990 — Convertible notes payable, net 3,325 2,816 Paycheck Protection Program loan 1,749 — 9,369 2,825 Current portion of long-term debt (6,370) (2,825) Long-term Debt $ 2,999 $ —
Schedule of warrant assumptions		Maturity 4 years Risk-free interest rate 0.27 % Volatility 85.00 % Dividend yield 0.00 % Weighted average fair value per common share 1.89
Schedule of stock warrants	The following is an analysis of the warrants to purchase shares of the Company’s stock deemed acquired as part of the Merger and outstanding during the three months ended March 31, 2021: March 31, 2021 Stock warrants outstanding–Public 10,185,774 Stock warrants outstanding–Private 6,074,310 Stock warrants cancelled — Stock warrants exercised — Stock warrants outstanding 16,260,084	2020 2019 Stock warrants outstanding, January 1 699,026 239,121 Stock warrants issued with convertible notes payable 78,239 459,905 Stock warrants cancelled — — Stock warrants exercised — — Stock warrants outstanding, December 31 777,265 699,026

Accrued Expenses (Tables)_2

Accrued Expenses (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Accrued Expenses
Schedule of accrued expenses	March 31, December 31, 2021 2020 License and title fees $ 1,634 $ 785 Payroll and bonuses 2,038 837 Deferred rent 262 199 Technology 2,900 — Other 4,316 1,742 Total Accrued Expenses $ 11,150 $ 3,563	2020 2019 License and title fees $ 785 $ 399 Payroll and bonuses 837 388 Deferred rent 199 300 Other accrued expenses 1,742 489 Total Accrued Expenses $ 3,563 $ 1,576

Other Liabilities (Tables)_2

Other Liabilities (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Other Liabilities
Schedule of other liabilities	March 31, December 31, 2021 2020 Other Liabilities, Current Unearned insurance premiums $ 815 $ 257 Other Liabilities Unearned insurance premiums 1,423 1,680 Other long-term liabilities 147 135 Historic warrants liability — 144 Other Liabilities, Long-term $ 1,570 $ 1,959	2020 2019 Other Liabilities, Current Unearned insurance premiums $ 257 $ 434 Other Liabilities Unearned insurance premiums 1,680 719 Other long-term liabilities 135 97 Stock warrants liability 144 115 Other Liabilities, Long-term $ 1,959 $ 931

Lease Commitments (Tables)_2

Lease Commitments (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Lease Commitments
Schedule of facility lease commitments due for the next five years, and thereafter	Total Capital Total Per Year Leases 2021 (remaining) $ 2,158 $ 139 2022 3,675 183 2023 3,535 187 2024 2,552 190 2025 2,339 194 Thereafter 3,977 1,078 Total $ 18,236 $ 1,971 Less: amount representing interest $ (666) Present value of minimum lease payments $ 1,305 Less: current obligation $ (55) Long-term obligations under capital lease $ 1,250	Operating Leases Capital Leases 2021 $ 2,303 $ 139 2022 2,372 183 2023 2,209 187 2024 1,216 190 2025 993 194 Thereafter 511 1,078 Total Minimum Lease Payments $ 9,604 $ 1,971 Less: amount representing interest (666) Present value of minimum lease payments 1,305 Less: current obligation (55) Long-term obligations under capital lease $ 1,250
Schedule of future minimum lease payments due to third parties and the related expected future receipts related to these lease vehicles	Payments Due to Third-Parties Future Receipts 2021 (remaining) $ 1,225 $ 1,473 2022 1,158 1,389 2023 731 865 2024 312 367 2025 11 13 Total $ 3,437 $ 4,107	Payments Due to Third Parties Future Receipts 2021 $ 1,538 $ 1,862 2022 1,024 1,236 2023 596 711 2024 194 233 2025 2 3 Total $ 3,354 $ 4,045

Stock-Based Compensation Plan_5

Stock-Based Compensation Plan (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of options outstanding and weighted average exercise price	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70
Schedule of weighted average inputs used	Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 6.25 years Risk-free interest rate 0.62 % Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00 Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00 Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 6.25 years Risk-free interest rate 0.62 % Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00 Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00
2011 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of options outstanding and weighted average exercise price	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 1,785,251 Granted — — Forfeited (137,601) 0.55 Balance at December 31, 2018 1,647,650 0.60 Granted — — Forfeited (76,445) 0.67 Balance at December 31, 2019 1,571,205 0.59 Granted — — Forfeited — — Balance at December 31, 2020 1,571,205 0.59
Schedule of stock options vested and expected to vest	Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 1,515,146 1.49 years $ 0.58 Exercisable 1,515,146 1.49 years $ 0.58 Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 1,515,146 1.49 years $ 0.58 Exercisable 1,515,146 1.49 years $ 0.58 ​ Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 3,961,658 8.31 years $ 0.92 Exercisable 3,538,672 8.18 years $ 0.92	Wgt. Avg. Number of Remaining Wgt. Avg. Options Contractual Life Exercise Price Outstanding 1,571,205 Exercisable 1,494,377
2017 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of options outstanding and weighted average exercise price	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70
Schedule of stock options vested and expected to vest	Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 1,515,146 1.49 years $ 0.58 Exercisable 1,515,146 1.49 years $ 0.58 ​ Weighted Average Weighted Number of Remaining Average Stock Options Contractual Life Exercise Price Outstanding 3,961,658 8.31 years $ 0.92 Exercisable 3,538,672 8.18 years $ 0.92
Schedule of weighted average inputs used	Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 6.25 years Risk-free interest rate 0.62 % Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00 Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00	Expected volatility % Expected dividend yield — % Expected term (in years) 5 years Risk-free interest rate %
2020 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Summary of options outstanding and weighted average exercise price	Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Number of Wgt. Avg. Options Exercise Price Balance at January 1, 2018 — — Granted 2,665,921 0.92 Forfeited (66,253) 0.92 Balance at December 31, 2018 2,599,669 0.92 Granted 1,569,676 0.92 Forfeited (1,323,787) 0.92 Balance at December 31, 2019 2,845,557 0.92 Granted 1,116,101 0.92 Forfeited — 0.92 Balance at December 31, 2020 3,961,658 0.92 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Number of Average Stock Options Exercise Price Balance (December 31, 2020) 1,571,205 $ 0.59 Granted — — Exercised (56,059) 0.24 Forfeited — — Balance (March 31, 2021) 1,515,146 0.58 Vested (as of March 31, 2021) 1,515,146 $ 0.58 Weighted Number of Average Stock Options Exercise Price Balance (January 1, 2020) 1,571,205 $ 0.59 Granted — — Forfeited — — Balance (March 31, 2020) 1,571,205 0.59 Vested (as of March 31, 2020) 1,482,528 $ 0.59 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) 3,961,658 $ 0.92 Granted — — Forfeited — — Balance (March 31, 2021) 3,961,658 $ 0.92 Vested (as of March 31, 2021) 3,538,672 $ 0.92 Weighted Averaged Number of Units Exercise Price Balance (January 1, 2020) 2,845,557 $ 0.96 Granted 509,635 0.96 Forfeited — — Balance (March 31, 2020) 3,355,192 $ 0.96 Weighted Averaged Number of Units Exercise Price Balance (December 31, 2020) — $ — Granted 1,409,401 11.35 Forfeited — — Balance (March 31, 2021) 1,409,401 $ 11.35 Weighted Average Number of Units grant date fair value Balance (December 31, 2020) — $ — Granted 640,421 10.70 Forfeited — — Balance (March 31, 2021) 640,421 $ 10.70
Schedule of weighted average inputs used	Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 3.6–4.8 years Risk-free interest rate 0.32%–0.45 % Expected volatility 80.00 % Expected dividend yield 0 % Expected term (in years) 6.25 years Risk-free interest rate 0.62 % Expected volatility 80.00 % Starting stock price $ 11.31 Expected term (in years) 5 years Risk-free interest rate 0.45 % Earnout hurdle $ 12.50-$15.00

Net Loss Per Share Attributab_6

Net Loss Per Share Attributable to Common Stockholders (Tables)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Net Loss Per Share Attributable to Common Stockholders
Schedule of basic and diluted net loss per share attributable to common stockholders	2021 2020 Numerator: Net Loss $ (15,022) $ (1,507) Denominator: Weighted average common shares outstanding, basic and diluted 100,817,385 58,621,041 Net loss per share attributable to common stockholders, basic and diluted $ (0.15) $ (0.03)	2020 2019 2018 Numerator: Net loss $ (6,552) $ (12,678) $ (6,560) Denominator: Weighted average shares outstanding, basic and diluted 58,621,042 56,737,364 50,325,203 Net loss per share attributable to common stockholders, basic and diluted $ (0.11) $ (0.22) $ (0.13)
Schedule of potentially dilutive securities excluded from the computation of diluted net loss per share	2021 2020 Public warrants 10,185,774 — Private warrants 6,074,310 — Earnout RSUs 640,421 — Earnout shares 6,945,732 — Convertible notes payable — 2,918,556 Historic warrants — 645,167 Stock options outstanding to purchase shares of common stock 6,886,205 4,926,397 Total 30,732,442 8,490,120	2020 2019 2018 Convertible notes payable 3,556,335 2,876,492 — Stock warrants 777,265 699,026 239,121 Stock options outstanding to purchase shares of common stock 5,532,863 4,416,762 4,247,318 Total 9,866,462 7,992,280 4,486,439

Description of Business (Deta_2

Description of Business (Details) - $ / shares	Sep. 13, 2018	Mar. 31, 2021	Dec. 31, 2020
Business Acquisition
Exercise price of warrants (in dollar per share)		$ 11.50
Orange Grove Fleet Solutions, LLC
Business Acquisition
Redemption of membership interest (in percent)	80.00%
Acquisition of membership interest (in percent)	20.00%
ASC 805
Business Acquisition
Acquisition of membership interest (in percent)	20.00%
CarLotz Group, Inc
Business Acquisition
Ownership interest (in percent)		100.00%
Orange Grove Fleet Solutions, LLC
Business Acquisition
Ownership interest (in percent)		100.00%	100.00%
Orange Peel Protection Reinsurance Co. Ltd.
Business Acquisition
Ownership interest (in percent)		100.00%	100.00%
Orange Peel Protection Reinsurance Co. Ltd. | Orange Peel LLC
Business Acquisition
Ownership interest (in percent)			100.00%
Orange Peel LLC
Business Acquisition
Ownership interest (in percent)		100.00%	100.00%

Summary of Significant Accoun_7

Summary of Significant Accounting Policies (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021USD ($)shares	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)segment	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Property, Plant and Equipment
Contingent right to receive shares by the equity shareholders (in shares) | shares	7,500,000
Restricted cash	$ 227		$ 605	$ 888
Advertising costs incurred	$ 2,526	$ 541	$ 3,199	$ 3,803	$ 1,871
Amortization method	straight-line method
Amortization period	3 years
Number of reportable segments | segment			1
Leasehold Improvements
Property, Plant and Equipment
Estimated useful lives (in years)			15 years
Corporate Vehicles
Property, Plant and Equipment
Estimated useful lives (in years)			5 years
Minimum
Property, Plant and Equipment
Lease term (in years)			1 year
Minimum | Furniture, fixtures, and equipment
Property, Plant and Equipment
Estimated useful lives (in years)			1 year
Maximum
Property, Plant and Equipment
Lease term (in years)			4 years
Maximum | Furniture, fixtures, and equipment
Property, Plant and Equipment
Estimated useful lives (in years)			5 years

Merger (Details)

Merger (Details) - USD ($) $ in Thousands	Oct. 21, 2020	Mar. 31, 2021	Mar. 31, 2020
Business Acquisition [Line Items]
Less: consideration delivered to existing shareholders of Former CarLotz		$ (62,693)	$ 0
Less: consideration to pay accrued dividends		(4,853)	0
Less: transaction costs and advisory fees paid		(47,579)	0
Less: payments on cash considerations associated with stock options		(2,465)
Liabilities relieved: KAR/AFC note		$ (3,625)	$ 0
Acamar Partners Acquisition Corp
Business Acquisition [Line Items]
Cash - Acamar Partners' trust and cash	$ 309,999
Cash - PIPE	125,000
Less: consideration delivered to existing shareholders of Former CarLotz	(62,693)
Less: consideration to pay accrued dividends	(4,853)
Less: transaction costs and advisory fees paid	(47,579)
Less: payments on cash considerations associated with stock options	(2,465)
Net contributions from Merger and PIPE financing	317,409
Liabilities relieved: preferred stock obligation	2,832
Liabilities relieved: KAR/AFC note	3,625
Liabilities relieved: Historic warrant liability:	144
Less: earnout shares liability	(74,285)
Less: warrants liability	$ (39,025)

Merger - Merger warrants (Detai

Merger - Merger warrants (Details) - Acamar Partners Acquisition Corp shares in Thousands	Mar. 31, 2021shares
Business Acquisition [Line Items]
Stock warrants outstanding	16,260,084
Public warrants
Business Acquisition [Line Items]
Stock warrants outstanding	10,185,774
Private Placement Warrants
Business Acquisition [Line Items]
Stock warrants outstanding	6,074,310

Merger - Additional Information

Merger - Additional Information (Details) - $ / shares	Jan. 21, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Additional earnout shares receivable	640,421	30,732,442	8,490,120	9,866,462	7,992,280	4,486,439
Share Price	$ 10
Earnout shares
Business Acquisition [Line Items]
Additional earnout shares receivable	6,945,732
Share Price	$ 10
Earnout shares | First Threshold
Business Acquisition [Line Items]
Number of months following the closing	60 months
Stock price trigger	$ 12.50
Threshold number of trading days	20 days
Percentage of earnout shares	50.00%
Earnout shares | Second Threshold
Business Acquisition [Line Items]
Stock price trigger	$ 15
Threshold number of trading days	20 days
Threshold consecutive trading days	30 days
Percentage of earnout shares	50.00%

Revenue Recognition (Details)_2

Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue
Finance and insurance, net	$ 1,554	$ 892	$ 3,898	$ 3,117	$ 1,608
Lease income, net	107	145	490	533	142
Total Revenues	56,612	25,390	118,625	102,486	58,351
Retail vehicle sales
Disaggregation of Revenue
Total Revenues	50,383	21,042	104,253	90,382	53,448
Wholesale vehicle sales
Disaggregation of Revenue
Total Revenues	4,568	3,311	9,984	8,454	3,153
Vehicle Sales
Disaggregation of Revenue
Finance and insurance, net	1,554	892	3,898	3,117	1,608
Total Revenues	56,505	25,245	118,135	101,953	58,209
Vehicle Sales | Retail vehicle sales
Disaggregation of Revenue
Total Revenues	50,383	21,042	104,253	90,382	53,448
Vehicle Sales | Wholesale vehicle sales
Disaggregation of Revenue
Total Revenues	4,568	3,311	9,984	8,454	3,153
Fleet Management
Disaggregation of Revenue
Lease income, net	107	145	490	533	142
Total Revenues	$ 107	$ 145	$ 490	$ 533	$ 142

Revenue Recognition - Summary_2

Revenue Recognition - Summary of Revenues and Cost of Sales (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021USD ($)location	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)customer	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Disaggregation of Revenue
Sales	$ 56,612	$ 25,390	$ 118,625	$ 102,486	$ 58,351
Cost of sales	54,604	22,918	107,369	93,780	52,708
Gross Profit	$ 2,008	2,472	$ 11,256	8,706	5,643
Number Of Retail Hub Locations	11		10
Retail vehicle sales
Disaggregation of Revenue
Sales	$ 50,383	21,042	$ 104,253	90,382	53,448
Cost of sales	48,917	19,555	96,983	84,534	48,523
Gross Profit	1,466	1,487	7,270	5,848	4,925
Wholesale vehicle sales
Disaggregation of Revenue
Sales	4,568	3,311	9,984	8,454	3,153
Cost of sales	5,687	3,363	10,386	9,246	4,185
Gross Profit	$ (1,119)	$ (52)	$ (402)	$ (792)	$ (1,032)

Marketable Securities - Summa_4

Marketable Securities - Summary investments in fixed maturity debt securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	$ 218,040	$ 642
Gross Unrealized Gains	9	16
Gross Unrealized Losses	(125)	(1)
Fair Value	217,924	657
U.S. Treasuries
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	181	240
Gross Unrealized Gains	2	6
Fair Value	183	246
Corporate bonds
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	63,197	261
Gross Unrealized Gains	2	5
Gross Unrealized Losses	(111)	(1)
Fair Value	63,088	265
Municipal bonds
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	24,003
Gross Unrealized Gains	5
Gross Unrealized Losses	(14)
Fair Value	23,994
Commercial paper
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost	130,659
Fair Value	$ 130,659
U.S. states, territories, and political subdivisions
Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract]
Amortized Cost		141
Gross Unrealized Gains		5
Fair Value		$ 146

Marketable Securities - Contr_2

Marketable Securities - Contractual maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Amortized Cost
Due in one year or less	$ 173,174	$ 77
Due after one year through five years	44,540	379
Due after five years through ten years	326	186
Total	218,040	642
Fair Value
Due in one year or less	173,145	78
Due after one year through five years	44,457	388
Due after five years through ten years	322	191
Total	$ 217,924	$ 657

Marketable Securities - Summa_5

Marketable Securities - Summary of company's gross unrealized losses in fixed debt securities (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021USD ($)security	Dec. 31, 2020USD ($)security
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Estimated Fair Value, Less Than 12 Months	$ 41,512	$ 39
Estimated Fair Value, 12 Months or more	40,871
Estimated Fair Value, Total	82,533	39
Unrealized Losses, Less Than 12 Months	(42)	(1)
Unrealized Losses, 12 Months or more	(83)	0
Unrealized Losses, Total	$ (125)	$ (1)
Number of securities with gross unrealized losses that were in excess of 12 | security	25	0
Number of securities with gross unrealized losses that were less than 12 months	98	2
Amortized cost, Percentage	3.50%	1.60%
Corporate bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Estimated Fair Value, Less Than 12 Months	$ 23,226	$ 39
Estimated Fair Value, 12 Months or more	39,736
Estimated Fair Value, Total	62,962	39
Unrealized Losses, Less Than 12 Months	(31)	(1)
Unrealized Losses, 12 Months or more	(80)
Unrealized Losses, Total	(111)	(1)
Municipal bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Estimated Fair Value, Less Than 12 Months	18,286
Estimated Fair Value, 12 Months or more	1,135
Estimated Fair Value, Total	19,421
Unrealized Losses, Less Than 12 Months	(11)
Unrealized Losses, 12 Months or more	(3)
Unrealized Losses, Total	(14)
Maximum
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Unrealized Losses, 12 Months or more	$ (26)	$ (325)

Marketable Securities - Summa_6

Marketable Securities - Summary of xost and estimated fair value of the investments in equity securities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Marketable Securities
Equity securities, Cost	$ 433	$ 335
Equity securities, Estimated Fair Value	$ 500	$ 375

Marketable Securities - Proce_2

Marketable Securities - Proceeds from sales and maturites, gross realiszed gains, gross realized losses, net realized gains (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Debt Securities, Trading, Realized Gain (Loss) [Abstract]
Proceeds	$ 59	$ 18	$ 18
Gross Realized Losses		(3)
Net Realized (Losses)		(3)
Equity Securities, FV-NI, Realized Gain (Loss) [Abstract]
Proceeds			50
Gross Realized Gains			1
Gross Realized Losses			(2)
Net Realized (Losses)			(1)
Marketable Securities, Gain (Loss) [Abstract]
Proceeds	$ 59	18	68
Gross Realized Gains		1	1
Gross Realized Losses		(3)	(2)
Net Realized (Losses)		$ (3)	$ (1)

Fair Value of Financial Instr_9

Fair Value of Financial Instruments - Summaries of Fair Value Measurements and Hierarchy Level (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Assets
Assets	$ 271,142	$ 1,437
Liabilities:
Liabilities	69,105	2,976	$ 3,870
Equity securities
Assets
Assets	500	375
Fixed maturity debt securities, including cash equivalents
Assets
Assets	233,193
Fixed maturity debt securities
Assets
Assets		657
Merger warrant liability
Liabilities:
Liabilities	26,667
Earnout shares
Liabilities:
Liabilities	42,438
Redeemable convertible preferred stock tranche obligation
Liabilities:
Liabilities		2,832	3,755
Historic warrants liability
Liabilities:
Liabilities		144
Stock warrants liability
Liabilities:
Liabilities		144	115
Money market funds
Assets
Assets	37,449	405	688
Level 1
Assets
Assets	37,949	1,026
Liabilities:
Liabilities	16,705
Level 1 | Equity securities
Assets
Assets	500	375
Level 1 | Fixed maturity debt securities
Assets
Assets		246
Level 1 | Merger warrant liability
Liabilities:
Liabilities	16,705
Level 1 | Money market funds
Assets
Assets	37,449	405	688
Level 2
Assets
Assets	233,193	411
Liabilities:
Liabilities	9,962
Level 2 | Fixed maturity debt securities, including cash equivalents
Assets
Assets	233,193
Level 2 | Fixed maturity debt securities
Assets
Assets		411
Level 2 | Merger warrant liability
Liabilities:
Liabilities	9,962
Level 3
Liabilities:
Liabilities	42,438	2,976	3,870
Level 3 | Earnout shares
Liabilities:
Liabilities	$ 42,438
Level 3 | Redeemable convertible preferred stock tranche obligation
Liabilities:
Liabilities		2,832	3,755
Level 3 | Historic warrants liability
Liabilities:
Liabilities		144
Level 3 | Stock warrants liability
Liabilities:
Liabilities		$ 144	$ 115

Fair Value of Financial Inst_10

Fair Value of Financial Instruments - Summary of Changes in Estimated Fair Value of Company's Level 3 (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Liabilities at the beginning of the period	$ 2,976	$ 3,870	$ 3,870	$ 3,328
Issuances	74,284		15	72
Settlements	(2,976)			(902)
Change in fair value	(31,846)	(297)	(909)	1,372
Liabilities at the end of the period	42,438	3,573	2,976	3,870
Redeemable convertible preferred stock tranche obligation
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Liabilities at the beginning of the period	2,832	3,755	3,755	3,261
Settlements	(2,832)			(902)
Change in fair value		(284)	(923)	1,396
Liabilities at the end of the period		3,471	2,832	3,755
Historic warrants liability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Liabilities at the beginning of the period	144	115	115
Settlements	(144)
Change in fair value		(13)
Liabilities at the end of the period		102	144	115
Earnout shares
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Issuances	74,284
Change in fair value	(31,846)
Liabilities at the end of the period	42,438
Stock warrants liability
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Liabilities at the beginning of the period	$ 144	$ 115	115	67
Issuances			15	72
Change in fair value			14	(24)
Liabilities at the end of the period			$ 144	$ 115

Fair Value of Financial Inst_11

Fair Value of Financial Instruments - Black Scholes Pricing Model Included Significant Unobservable Inputs (Details)	Mar. 31, 2021	Jan. 21, 2021	Dec. 31, 2020	Dec. 31, 2019
Expected volatility
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	80	80	65	45
Starting stock price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	7.13	11.31
Dividend yield
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing			0	0
Expected term (in years)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	4.7	5
Risk-free interest rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	0.87	0.45	0.27	1.69
Earnout hurdle | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	12.50	12.50
Earnout hurdle | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing	15	15
Marketability discount
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity financing			60	50

Fair Value of Financial Inst_12

Fair Value of Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Mar. 10, 2021	Dec. 02, 2020
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair value assets level 1 to 2 transfers	$ 0	$ 0	$ 0	$ 0
Fair value assets level 2 to 1 transfers	0	0	0	0
Fair value liabilities level 1 to 2 transfers	0	0	0	0
Fair value liabilities level 2 to 1 transfers	0	0	0	0
Fair value assets transfers in to level 3	0	0	0	0
Fair value assets transfers out of level 3	0	0	0	0
Fair value liability transfers in to level 3	0	0	0	0
Fair value liability transfers out of level 3	$ 0	$ 0	0	$ 0
Debt instrument, face amount						$ 2,990
Ally Financial
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Amount of floor plan credit facility					$ 30,000
Convertible note
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair value of debt			$ 3,264

Accounts Receivable, Net (Det_2

Accounts Receivable, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 9,391	$ 4,199	$ 3,283
Allowance for doubtful accounts	(67)	(67)	(27)
Total Accounts Receivable, net	9,324	4,132	3,256
Contracts in transit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	8,521	3,321	2,645
Trade
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	243	240	202
Finance commission
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	329	132	87
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total	$ 298	$ 506	$ 349

Inventory and Floor Plan Note_7

Inventory and Floor Plan Notes Payable (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Inventory and Floor Plan Notes Payable
Used vehicles	$ 9,274	$ 11,202	$ 7,592
Parts	37		33
Total	$ 9,311	$ 11,202	$ 7,625

Inventory and Floor Plan Note_8

Inventory and Floor Plan Notes Payable - Additional Details (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 10, 2021	Dec. 31, 2020	Dec. 31, 2019
Automotive Finance Corporation
Line of Credit Facility [Line Items]
Amount available under facility			$ 12,000
Base spread (as a percent)			2.00%
Weighted average interest rate			5.25%	6.75%
Ally Financial
Line of Credit Facility [Line Items]
Amount available under facility		$ 30,000
Base spread (as a percent)	3.25%	2.50%

Property and Equipment, Net (_3

Property and Equipment, Net (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 3,496,000		$ 2,910,000	$ 1,507,000
Less: accumulated depreciation	(1,147,000)		(1,042,000)	(876,000)
Property and Equipment, net	2,349,000		1,868,000	631,000
Depreciation expense for property and equipment	105,000	$ 51,000	195,000	260,000	$ 253,000
Capital lease asset building
Property, Plant and Equipment [Line Items]
Total property and equipment	1,305,000		1,305,000
Amortization of capital lease asset			0
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Total property and equipment	887,000		702,000	688,000
Furniture, fixtures, and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment	1,161,000		760,000	715,000
Corporate Vehicles
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 143,000		$ 143,000	$ 104,000

Other Assets - Other Assets (_2

Other Assets - Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Current Assets:
Lease receivable, net	$ 22	$ 36	$ 13
Stock issuance costs	47	72
Deferred acquisition costs		72	32
Prepaid expenses	5,857	679	189
Interest receivable	729
Deferred transaction costs		5,892
Total Other Current Assets	6,655	6,679	234
Other Assets:
Lease receivable, net	16	16	38
Stock issuance costs	72	48
Deferred acquisition costs		48	50
Security deposits	3,249	235	255
Total Other Assets	$ 3,337	$ 299	$ 343

Long-term Debt (Details)_2

Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Apr. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Gross loan	$ 1,305	$ 9,369		$ 2,825
Current portion of long-term debt	(55)	(6,370)		(2,825)
Long-term Debt	1,250	2,999
Term note payable
Debt Instrument [Line Items]
Gross loan				9
Capital lease obligation
Debt Instrument [Line Items]
Gross loan	$ 1,305	1,305
Promissory note
Debt Instrument [Line Items]
Gross loan		2,990
Convertible notes payable
Debt Instrument [Line Items]
Gross loan		3,325		$ 2,816
Paycheck Protection Program loan
Debt Instrument [Line Items]
Gross loan		$ 1,749	$ 1,749

Long-term Debt - Additional I_2

Long-term Debt - Additional Information (Details) $ / shares in Units, $ in Thousands	Jan. 21, 2021USD ($)shares	Dec. 23, 2020	Dec. 20, 2019USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2020USD ($)trancheitem$ / shares	Dec. 31, 2019USD ($)	Sep. 20, 2021USD ($)	Mar. 31, 2021USD ($)$ / shares	Dec. 02, 2020USD ($)	Apr. 30, 2020USD ($)	Apr. 08, 2020USD ($)tranche
Debt Instrument [Line Items]
Cash payment	$ 3,000
Term of lease		10 years 3 months
Total future minimum lease payments					$ 1,971
Annual rent escalation					2.00%
Number of renewal options | item					3
Renewal term					5 years
Issuance costs					$ 10	$ 112
Notes issued				$ 500
Exercise price of warrants (in dollar per share) | $ / shares								$ 11.50
Debt instrument, face amount									$ 2,990
Gross loan					9,369	2,825		$ 1,305
Term note payable
Debt Instrument [Line Items]
Monthly installments					$ 1
Interest rate (as a percent)					16.01%
Gross loan						9
Convertible notes payable
Debt Instrument [Line Items]
Interest rate (as a percent)					6.00%
Number of additional tranches | tranche											4
Amount of additional tranches											$ 500
Maximum number of additional tranches | tranche					2
Minimum amount of additional tranches					$ 1,000
Number of stock warrants exercised | shares	73,869
Debt instrument, face amount			$ 5,000
Convertible notes payable net of issuance cost					3,500
Interest payable					212	6
Gross loan					$ 3,325	2,816
Convertible notes, common stock | shares	347,992
Convertible notes payable | Initial Tranche
Debt Instrument [Line Items]
Amount of initial tranche			3,000
Convertible notes payable | Subsequent Tranche
Debt Instrument [Line Items]
Minimum amount of additional tranches							$ 1,000
Stock warrants liability
Debt Instrument [Line Items]
Fair value						72
Exercise price of warrants (in dollar per share) | $ / shares					$ 0.01
Convertible notes payable net of issuance cost						112
Stock warrants liability | Initial Tranche
Debt Instrument [Line Items]
Amount of initial tranche						$ 3,000
Paycheck Protection Program loan
Debt Instrument [Line Items]
Gross loan					$ 1,749					$ 1,749
NPA with AFC | Convertible notes payable
Debt Instrument [Line Items]
Minimum amount of additional tranches			$ 1,000
Stock warrants received percentage on fully diluted common stock			0.20%

Accrued Expenses (Details)_2

Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accrued Expenses
License and title fees	$ 1,634	$ 785	$ 399
Payroll and bonuses	2,038	837	388
Deferred rent	262	199	300
Technology	2,900
Other	4,316	1,742	489
Total Accrued Expenses	$ 11,150	$ 3,563	$ 1,576

Other Liabilities (Details)_2

Other Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Liabilities, Current
Unearned insurance premiums	$ 815	$ 257	$ 434
Other Liabilities
Unearned insurance premiums	1,423	1,680	719
Other long-term liabilities	147	135	97
Historic warrants liability		144	115
Other Liabilities, Long-term	$ 1,570	$ 1,959	$ 931

Lease Commitments - Facility _2

Lease Commitments - Facility lease commitments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Operating Leases
2021 (remaining)		$ 2,303
2022		2,372
2023		2,209
2024		1,216
2025		993
Thereafter		511
Total Minimum Lease Payments		9,604
Capital Leases
2021 (remaining)		139
2022		183
2023		187
2024		190
2025		194
Thereafter		1,078
Total Minimum Lease Payments		1,971
Less: amount representing interest		(666)
Present value of minimum lease payments		1,305
Less: current obligation		(55)
Long-term obligations under capital lease		$ 1,250
Facility lease
Operating Leases
2021 (remaining)	$ 2,158
2022	3,675
2023	3,535
2024	2,552
2025	2,339
Thereafter	3,977
Total Minimum Lease Payments	18,236
Capital Leases
2021 (remaining)	139
2022	183
2023	187
2024	190
2025	194
Thereafter	1,078
Total Minimum Lease Payments	1,971
Less: amount representing interest	(666)
Present value of minimum lease payments	1,305
Less: current obligation	(55)
Long-term obligations under capital lease	$ 1,250

Lease Commitments - Payments _2

Lease Commitments - Payments due to third parties and the related expected future receipts (Details) - Vehicle lease - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Payments due
2021 (remaining)	$ 1,225	$ 1,538
2022	1,158	1,024
2023	731	596
2024	312	194
2025	11	2
Total	3,437	3,354
Future Receipts
2021 (remaining)	1,473	1,862
2022	1,389	1,236
2023	865	711
2024	367	233
2025	13	3
Total	$ 4,107	$ 4,045

Lease Commitments - Additiona_2

Lease Commitments - Additional information (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Rent expense	$ 688	$ 462	$ 1,720	$ 2,000	$ 1,000
Minimum | Lease Expiration July 2031
Lessee, Lease, Description [Line Items]
Monthly rental payments	3
Minimum | Lease Expiration June 2025
Lessee, Lease, Description [Line Items]
Monthly rental payments	291
Minimum | Lease expiration march 2031
Lessee, Lease, Description [Line Items]
Monthly rental payments			3
Minimum | Lease expiration december 2023
Lessee, Lease, Description [Line Items]
Monthly rental payments			291
Maximum | Lease Expiration July 2031
Lessee, Lease, Description [Line Items]
Monthly rental payments	36
Maximum | Lease Expiration June 2025
Lessee, Lease, Description [Line Items]
Monthly rental payments	$ 1,770
Maximum | Lease expiration march 2031
Lessee, Lease, Description [Line Items]
Monthly rental payments			50
Maximum | Lease expiration december 2023
Lessee, Lease, Description [Line Items]
Monthly rental payments			$ 1,770

Redeemable Convertible Prefer_4

Redeemable Convertible Preferred Stock - Additional Information (Details) $ / shares in Units, $ in Thousands	1 Months Ended			12 Months Ended
	May 31, 2019shares	Jan. 31, 2019shares	Sep. 30, 2017shares	Dec. 31, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)$ / shares
Temporary Equity [Line Items]
Distribution priority ratio				1.5
Preferred returns percentage				8.00%
Unpaid cumulative dividend				$ 4,800	$ 2,900
Redeemable convertible preferred stock				17,560
Redeemable convertible preferred stock tranche obligation				$ 2,832
Series A Preferred Stock
Temporary Equity [Line Items]
Distribution priority ratio				1.5
Preferred returns percentage				8.00%
Unpaid cumulative dividend				$ 4,800	2,900
Liquidation preference				$ 37,114	$ 34,300
Right to purchase additional shares in each tranche | shares				508,688
Dividend per share | $ / shares				$ 2.34	$ 1.41
First Tranche | Series A Preferred Stock
Temporary Equity [Line Items]
Temporary Equity, Stock Issued During Period, Shares, New Issues | shares			1,220,851
Number of members of Company's Board of Directors can be elected by Preferred Stock holders				3
Second Tranche | Series A Preferred Stock
Temporary Equity [Line Items]
Temporary Equity, Stock Issued During Period, Shares, New Issues | shares	508,712	305,188		813,900
Fair value				$ 482
Number of members of Company's Board of Directors can be elected by Preferred Stock holders				5
Third Tranche | Series A Preferred Stock
Temporary Equity [Line Items]
Fair value				$ 1,214
Fourth Tranche | Series A Preferred Stock
Temporary Equity [Line Items]
Fair value				$ 1,214

Stock-Based Compensation Plan_6

Stock-Based Compensation Plan - Number of options outstanding and weighted average exercise price related to the shares (Details) - $ / shares	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
2017 Stock Option Plan
Weighted Average Exercise Price Per Share (in whole dollars)
Exercisable, Ending balance	$ 6.21
Stock option
Weighted Average Exercise Price Per Share (in whole dollars)
Exercisable, Ending balance	$ 6.55
Stock option | RSUs
Number of Shares
Outstanding, Beginning balance	0
Granted	640,421
Forfeited	0
Outstanding, Ending balance	640,421		0
Weighted Average Exercise Price Per Share (in whole dollars)
Outstanding, Beginning balance	$ 0
Granted	10.70
Forfeited	0
Outstanding, Ending balance	$ 10.70		$ 0
Stock option | 2011 Stock Option Plan
Number of Shares
Outstanding, Beginning balance	1,571,205	1,571,205	1,571,205
Granted	0	0	0	0	0
Exercised	56,059		0	0	0
Forfeited	0
Outstanding, Ending balance	1,515,146	1,571,205	1,571,205	1,571,205
Exercisable, Ending balance	1,515,146
Vested, Ending balance	1,515,146	1,482,528
Weighted Average Exercise Price Per Share (in whole dollars)
Outstanding, Beginning balance	$ 0.59	$ 0.59	$ 0.59
Granted	0
Exercised	0.24
Forfeited	0
Outstanding, Ending balance	0.58	0.59	$ 0.59	$ 0.59
Exercisable, Ending balance	0.58
Vested, Ending balance	$ 0.58	$ 0.59
Weighted Average Remaining Contractual Term (Years)
Outstanding	1 year 5 months 27 days
Exercisable	1 year 5 months 27 days
Stock option | 2017 Stock Option Plan
Number of Shares
Outstanding, Beginning balance	3,961,658	2,845,557	2,845,557	2,599,669
Granted			1,116,101	1,569,676	2,665,921
Forfeited				(1,323,787)	(66,253)
Outstanding, Ending balance			3,961,658	2,845,557	2,599,669
Vested, Ending balance	3,538,672
Weighted Average Exercise Price Per Share (in whole dollars)
Outstanding, Beginning balance	$ 0.92	$ 0.92	$ 0.92	$ 0.92
Granted			0.92	0.92	$ 0.92
Forfeited			0.92	0.92	0.92
Outstanding, Ending balance	$ 0.92		$ 0.92	$ 0.92	$ 0.92
Weighted Average Remaining Contractual Term (Years)
Outstanding			8 years 5 months 16 days
Exercisable			0 years
Stock option | 2020 Stock Option Plan
Number of Shares
Outstanding, Beginning balance	0
Granted	1,409,401
Forfeited	0
Outstanding, Ending balance	1,409,401		0
Weighted Average Exercise Price Per Share (in whole dollars)
Outstanding, Beginning balance	$ 0
Granted	11.35
Forfeited	0
Outstanding, Ending balance	$ 11.35		$ 0
Stock option | 2017 Stock Option Plan
Number of Shares
Outstanding, Beginning balance	3,961,658	2,845,557	2,845,557
Granted	0	509,635
Forfeited	0
Outstanding, Ending balance	3,961,658	3,355,192	3,961,658	2,845,557
Exercisable, Ending balance	3,538,672
Vested, Ending balance	3,538,672
Weighted Average Exercise Price Per Share (in whole dollars)
Outstanding, Beginning balance	$ 0.92	$ 0.96	$ 0.96
Granted	0	0.96
Forfeited	0
Outstanding, Ending balance	0.92	$ 0.96	$ 0.92	$ 0.96
Exercisable, Ending balance	0.92
Vested, Ending balance	$ 0.92
Weighted Average Remaining Contractual Term (Years)
Outstanding	8 years 3 months 22 days
Exercisable	8 years 2 months 5 days

Stock-Based Compensation Plan_7

Stock-Based Compensation Plan - Stock Option Plan (Details) - $ / shares	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
2017 Stock Option Plan
Fair value assumptions
Expected term (in years)		5 years
Stock option | 2017 Stock Option Plan
Fair value assumptions
Expected volatility	80.00%	81.00%
Expected dividend yield	0.00%
Risk-free interest rate		0.37%
Stock option | 2020 Stock Option Plan
Fair value assumptions
Expected volatility	80.00%
Expected dividend yield	0.00%
Expected term (in years)	6 years 3 months
Risk-free interest rate	0.62%
Stock option | Earnout RSUs
Fair value assumptions
Expected volatility	80.00%
Starting stock price	$ 11.31
Expected term (in years)	5 years
Risk-free interest rate	0.45%
Minimum | Stock option | 2017 Stock Option Plan
Fair value assumptions
Expected term (in years)	3 years 7 months 6 days
Risk-free interest rate	0.32%
Minimum | Stock option | Earnout RSUs
Fair value assumptions
Earnout hurdle	$ 12.50
Maximum | Stock option | 2017 Stock Option Plan
Fair value assumptions
Expected term (in years)	4 years 9 months 18 days
Risk-free interest rate	0.45%
Maximum | Stock option | Earnout RSUs
Fair value assumptions
Earnout hurdle	$ 15

Stock-Based Compensation Plan_8

Stock-Based Compensation Plan - Number of options outstanding and weighted average exercise price related to shares set aside for the 2017 Stock Option Plan 3 (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 41,963	$ 34
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	1,753
Total unrecognized compensation cost	$ 5,096
2017 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable intrinsic value	$ 6.21
Outstanding intrinsic value			$ 6.21
Weighted average grant date fair value of options granted			6.21
2020 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding intrinsic value	7.77
Weighted average grant date fair value of options granted	$ 7.77
Unrecognized compensation cost	$ 10,419
Stock option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of employees	16
Exercisable intrinsic value	$ 6.55
Outstanding intrinsic value			6.55
Weighted average grant date fair value of options granted			6.55
Stock option | RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants during the period	640,421
Forfeitures during the period	0
Exercise price	$ 10.70		$ 0
Stock option | 2011 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants during the period	0	0	0	0	0
Forfeitures during the period	0
Exercised	56,059		0	0	0
Exercise price	$ 0.58	$ 0.59	$ 0.59	$ 0.59
Vesting	1,515,146	1,482,528
Stock based compensation expense			$ 45	$ 113	$ 151
Exercisable intrinsic value	$ 0.58
Outstanding intrinsic value			0
Exercisable intrinsic value			0
Unrecognized compensation cost			$ 33
Unrecognized compensation cost, recognition period				4 months 10 days
Stock option | 2017 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants during the period			1,116,101	1,569,676	2,665,921
Forfeitures during the period				1,323,787	66,253
Exercise price	$ 0.92		$ 0.92	$ 0.92	$ 0.92
Expiration period	10 years		10 years
Vesting	3,538,672
Number of employees	8
Remaining options vesting period	4 years
Cash consideration	$ 186
Stock based compensation expense	38,800		$ 0	$ 0
Outstanding intrinsic value			$ 0.61
Weighted average grant date fair value of options granted			$ 0.61
Unrecognized compensation cost	$ 4,500		$ 236
Unrecognized compensation cost, recognition period	4 years
Stock option | 2020 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grants during the period	1,409,401
Forfeitures during the period	0
Exercise price	$ 11.35		$ 0

Stock-Based Compensation Plan_9

Stock-Based Compensation Plan - Earnout Restricted Stock Units (Details) - $ / shares	Jan. 21, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Additional earnout shares receivable	640,421	30,732,442	8,490,120	9,866,462	7,992,280	4,486,439
Share Price	$ 10
Earnout RSUs
Business Acquisition [Line Items]
Number of months following the closing	60 months
Earnout RSUs | First Threshold
Business Acquisition [Line Items]
Number of months following the closing	60 months
Stock price trigger	$ 12.50
Threshold number of trading days	20 days
Threshold consecutive trading days	30 days
Percentage of earnout RSUs	50.00%
Earnout RSUs | Second Threshold
Business Acquisition [Line Items]
Stock price trigger	$ 15
Threshold number of trading days	20 days
Threshold consecutive trading days	30 days
Percentage of earnout RSUs	50.00%

Income Taxes (Details)_2

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Taxes
Income Tax Expense (Benefit)	$ 0	$ 5	$ 10	$ 11	$ 3
Net operating loss carryforwards			29,200
Operating loss carry forward subject to expiration			6,400
Operating loss carry forward indefinitely			$ 22,800
Operating loss carry forward, maximum percentage on taxable income			80.00%
Federal income tax rate ( in percent)			21.00%	21.00%	35.00%

Net Loss Per Share Attributab_7

Net Loss Per Share Attributable to Common Stockholders - Schedule of basic and diluted net loss per share attributable to common stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Numerator:
Net loss	$ (15,022)	$ (1,507)	$ (6,552)	$ (12,678)	$ (6,560)
Denominator:
Weighted average shares outstanding, basic and diluted	100,817,385	58,621,041
Net Loss per Share, basic and diluted	$ (0.15)	$ (0.03)	$ (0.11)	$ (0.22)	$ (0.13)

Net Loss Per Share Attributab_8

Net Loss Per Share Attributable to Common Stockholders - Schedule of potentially dilutive securities excluded from the computation of diluted net loss per share (Details) - shares	Jan. 21, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share	640,421	30,732,442	8,490,120	9,866,462	7,992,280	4,486,439
Public warrants
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share		10,185,774
Private warrants
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share		6,074,310
Earnout RSUs
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share		640,421
Earnout shares
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share		6,945,732
Convertible notes payable
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share			2,918,556
Stock warrants
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share				777,265	699,026	239,121
Historic warrants
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share			645,167
Stock options outstanding to purchase shares of common stock
Net Loss Per Share Attributable to Common Stockholders
Antidilutive securities excluded from the computation of diluted net loss per share		6,886,205	4,926,397	5,532,863	4,416,762	4,247,318

Concentrations (Details)_2

Concentrations (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Dec. 31, 2019
Concentrations
Concentration Risk Percentage	10.00%	10.00%
Purchase
Concentrations
Concentration Risk Percentage	10.00%
Purchase | Vendor A
Concentrations
Concentration Risk Percentage			33.00%
Purchase | Vendor B
Concentrations
Concentration Risk Percentage			13.00%	12.00%
Accounts payable
Concentrations
Concentration Risk Percentage	62.00%
Accounts Payable	$ 3,448
Accounts payable | Vendor A
Concentrations
Accounts Payable			$ 2,918
Accounts payable | Vendor B
Concentrations
Accounts Payable			$ 368	$ 257

Subsequent Events (Details)_2

Subsequent Events (Details)	Oct. 24, 2020USD ($)	Oct. 21, 2020USD ($)	Mar. 31, 2021location	Dec. 31, 2020USD ($)	Mar. 10, 2021
Subsequent Event
Number of new locations with hub openings | location			1
Ally Financial
Subsequent Event
Interest rate of prime rate plus					2.50%
Interest rate of date of agreement					5.75%
Acamar Partners Acquisition Corp
Subsequent Event
Net cash received in business combination	$ 315,000,000
Number of new locations with hub openings				3
Acamar Partners Acquisition Corp | Redeemable Convertible Preferred Stock
Subsequent Event
Settlement of debt and equity				$ 17,560,000
Acamar Partners Acquisition Corp | Stock warrants liability
Subsequent Event
Settlement of debt and equity				144,000
Acamar Partners Acquisition Corp | Redeemable convertible preferred stock tranche obligation
Subsequent Event
Settlement of debt and equity				$ 2,832,000
Acamar Partners Acquisition Corp | Convertible notes payable
Subsequent Event
Extinguishment of debt		$ 3,500,000
Acamar Partners Acquisition Corp | Paycheck Protection Program loan
Subsequent Event
Extinguishment of debt		1,749,000
Acamar Partners Acquisition Corp | Promissory note
Subsequent Event
Extinguishment of debt		$ 3,000,000