Penske Automotive (PAG) 10-K 3 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Feb. 14, 2014	Jun. 30, 2013
Document and Entity Information	'	'	'
Entity Registrant Name	'PENSKE AUTOMOTIVE GROUP, INC.	'	'
Entity Central Index Key	'0001019849	'	'
Document Type	'10-K	'	'
Document Period End Date	31-Dec-13	'	'
Amendment Flag	'false	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Public Float	'	'	$1,287,739,501
Entity Common Stock, Shares Outstanding	'	90,243,731	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
ASSETS	'	'
Cash and cash equivalents	$49.80	$43.50
Accounts receivable, net of allowance for doubtful accounts of $3.4 and $2.9	606.2	550.9
Inventories	2,538.30	1,975.70
Other current assets	88.5	90.4
Assets held for sale	63.8	123.4
Total current assets	3,346.60	2,783.90
Property and equipment, net	1,241	1,022.90
Goodwill	1,148.70	971.7
Franchise value	300.3	276.6
Equity method investments	346.9	303.2
Other long-term assets	32	20.7
Total assets	6,415.50	5,379
LIABILITIES AND EQUITY	'	'
Floor plan notes payable	1,704.40	1,404.90
Floor plan notes payable - non-trade	903.2	711.4
Accounts payable	374.7	261.1
Accrued expenses	264	222.6
Current portion of long-term debt	50	19.5
Liabilities held for sale	35.5	75.6
Total current liabilities	3,331.80	2,695.10
Long-term debt	1,033.20	917.1
Deferred tax liabilities	361.4	287.8
Other long-term liabilities	167	162.7
Total liabilities	4,893.40	4,062.70
Commitments and contingent liabilities	'	'
Penske Automotive Group stockholders' equity:	'	'
Preferred Stock, $0.0001 par value; 100,000 shares authorized; none issued and outstanding	'	'
Common Stock	'	'
Additional paid-in-capital	693.6	700
Retained earnings	799.2	611
Accumulated other comprehensive income (loss)	11.6	-6.8
Total Penske Automotive Group stockholders' equity	1,504.40	1,304.20
Non-controlling interest	17.7	12.1
Total equity	1,522.10	1,316.30
Total liabilities and equity	6,415.50	5,379
Non-voting Common Stock	'	'
Penske Automotive Group stockholders' equity:	'	'
Common Stock	'	'
Class C Common Stock	'	'
Penske Automotive Group stockholders' equity:	'	'
Common Stock	'	'

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, except Share data, unless otherwise specified
Accounts receivable, allowance for doubtful accounts (in dollars)	$3.40	$2.90
Preferred Stock, par value (in dollars per share)	$0.00	$0.00
Preferred Stock, shares authorized	100,000	100,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common Stock, par value (in dollars per share)	$0.00	$0.00
Common Stock, shares authorized	240,000,000	240,000,000
Common Stock, shares issued	90,243,731	90,294,765
Common Stock, shares outstanding	90,243,731	90,294,765
Non-voting Common Stock	'	'
Common Stock, par value (in dollars per share)	$0.00	$0.00
Common Stock, shares authorized	7,125,000	7,125,000
Common Stock, shares issued	0	0
Common Stock, shares outstanding	0	0
Class C Common Stock	'	'
Common Stock, par value (in dollars per share)	$0.00	$0.00
Common Stock, shares authorized	20,000,000	20,000,000
Common Stock, shares issued	0	0
Common Stock, shares outstanding	0	0

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenue:	'	'	'
Total revenues	$14,705.40	$13,084.30	$11,039.40
Cost of sales:	'	'	'
Total cost of sales	12,445.60	11,078.60	9,287.30
Gross profit	2,259.80	2,005.70	1,752.10
Selling, general and administrative expenses	1,761.90	1,586.80	1,410.50
Depreciation	61.7	53.5	46.4
Operating income	436.2	365.4	295.2
Floor plan interest expense	-43.6	-38.3	-26.8
Other interest expense	-47.9	-46.8	-44.1
Debt discount amortization	'	'	-1.7
Equity in earnings of affiliates	30.7	27.6	25.4
Debt redemption costs	'	-17.8	'
Income from continuing operations before income taxes	375.4	290.1	248
Income taxes	-124.3	-94.3	-71.8
Income from continuing operations	251.1	195.8	176.2
Income (loss) from discontinued operations, net of tax	-5.4	-8.6	2.1
Net income	245.7	187.2	178.3
Less: Income attributable to non-controlling interests	1.5	1.7	1.4
Net income attributable to Penske Automotive Group common stockholders	244.2	185.5	176.9
Basic earnings per share attributable to Penske Automotive Group common stockholders:	'	'	'
Continuing operations (in dollars per share)	$2.76	$2.15	$1.92
Discontinued operations (in dollars per share)	($0.06)	($0.10)	$0.02
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$2.71	$2.05	$1.94
Shares used in determining basic earnings per share (in shares)	90,273,747	90,318,315	91,153,620
Diluted earnings per share attributable to Penske Automotive Group common stockholders:	'	'	'
Continuing operations (in dollars per share)	$2.76	$2.15	$1.92
Discontinued operations (in dollars per share)	($0.06)	($0.10)	$0.02
Net income attributable to Penske Automotive Group common stockholders (in dollars per share)	$2.70	$2.05	$1.94
Shares used in determining diluted earnings per share (in shares)	90,330,621	90,342,315	91,274,132
Amounts attributable to Penske Automotive Group common stockholders:	'	'	'
Income from continuing operations	251.1	195.8	176.2
Less: Income attributable to non-controlling interests	1.5	1.7	1.4
Income from continuing operations, net of tax	249.6	194.1	174.8
Income (loss) from discontinued operations, net of tax	-5.4	-8.6	2.1
Net income attributable to Penske Automotive Group common stockholders	244.2	185.5	176.9
New vehicle	'	'	'
Revenue:	'	'	'
Total revenues	7,619.50	6,753.40	5,605.80
Cost of sales:	'	'	'
Total cost of sales	7,034.70	6,208	5,141.20
Used vehicle	'	'	'
Revenue:	'	'	'
Total revenues	4,239.20	3,700.40	3,190
Cost of sales:	'	'	'
Total cost of sales	3,928.10	3,417.50	2,938
Finance and insurance, net	'	'	'
Revenue:	'	'	'
Total revenues	375.7	322.3	270.2
Service and parts	'	'	'
Revenue:	'	'	'
Total revenues	1,550.60	1,444.30	1,326
Cost of sales:	'	'	'
Total cost of sales	630.2	603.1	565.9
Fleet and wholesale	'	'	'
Revenue:	'	'	'
Total revenues	715.3	859.9	647.4
Cost of sales:	'	'	'
Total cost of sales	704.2	848.8	642.2
Commercial vehicle and car rental	'	'	'
Revenue:	'	'	'
Total revenues	205.1	4	'
Cost of sales:	'	'	'
Total cost of sales	$148.40	$1.20	'

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	'	'	'
Net Income	$245.70	$187.20	$178.30
Other Comprehensive Income:	'	'	'
Foreign currency translation adjustment	11.5	18.5	-5.8
Unrealized gain (loss) on interest rate swaps:	'	'	'
Unrealized gain (loss) arising during the period, net of tax benefit of $0.3, $2.1, and $6.3, respectively	-0.4	-3.2	-9.7
Reclassification adjustment for loss included in floor plan interest expense, net of tax provision of $2.9, $2.8, and $0.0, respectively	4.4	4.2	0.1
Unrealized gain (loss) on interest rate swaps, net of tax	4	1	-9.6
Other adjustments to Comprehensive Income, net	3.4	-1.9	-8.7
Other Comprehensive Income (Loss), Net of Taxes	18.9	17.6	-24.1
Comprehensive Income	264.6	204.8	154.2
Less: Comprehensive income attributable to non-controlling interests	2	1.9	1.4
Comprehensive income attributable to Penske Automotive Group common stockholders	$262.60	$202.90	$152.80

CONSOLIDATED_STATEMENTS_OF_COM1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	'	'	'
Unrealized gain (loss) arising during the period, tax benefit	$0.30	$2.10	$6.30
Reclassification adjustment for loss included in floor plan interest expense, tax provision	$2.90	$2.80	$0

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Activities:	'	'	'
Net income	$245.70	$187.20	$178.30
Adjustments to reconcile net income to net cash from continuing operating activities:	'	'	'
Depreciation	61.7	53.5	46.4
Debt discount amortization	'	'	1.7
Earnings of equity method investments	-23	-18.6	-25.4
(Income) loss from discontinued operations, net of tax	5.4	8.6	-2.1
Deferred income taxes	77.6	83.8	47.2
Debt redemption costs	'	17.8	'
Changes in operating assets and liabilities:	'	'	'
Accounts receivable	-38.7	-90.3	-60.8
Inventories	-396.3	-328.8	-87.6
Floor plan notes payable	297.1	417.9	78.9
Accounts payable and accrued expenses	79.3	14.3	-30.1
Other	6	-20.8	-9.7
Net cash from (used in) continuing operating activities	314.8	324.6	136.8
Investing Activities:	'	'	'
Purchase of equipment and improvements	-169.9	-152.3	-131.7
Purchase of car rental vehicles	-86.4	-9.9	'
Proceeds from sale-leaseback transactions	'	1.6	'
Acquisitions net, including repayment of sellers' floor plan notes payable of $29.6, $74.9 and $54.5, respectively	-338.1	-250.2	-232.1
Other	6.8	8.8	2.9
Net cash from (used in) continuing investing activities	-587.6	-402	-360.9
Financing Activities:	'	'	'
Proceeds from borrowings under U.S. credit agreement revolving credit line	1,102.80	761.3	663.4
Repayments under U.S. credit agreement revolving credit line	-1,062.80	-843.3	-531.4
Repayments under U.S. credit agreement term loan	-12	-17	-7
Issuance of 5.75% senior subordinated notes	'	550	'
Repurchase of 7.75% senior subordinated notes	'	-390.8	'
Repurchase of 3.5% senior subordinated convertible notes	'	-62.7	-87.3
Net borrowings (repayments) of other long-term debt	53.1	47.3	30.2
Net borrowings (repayments) of floor plan notes payable - non-trade	191.8	71.6	197
Proceeds from borrowings under car rental revolver	109	23.2	'
Repayments under car rental revolver	-45.3	'	'
Payment of deferred financing fees	'	-8.6	'
Proceeds from exercises of options, including excess tax benefit	'	'	3.4
Repurchases of common stock	-15.8	-9.8	-44.3
Dividends	-56	-41.5	-22
Other	0.2	-1.1	'
Net cash from (used in) continuing financing activities	265	78.6	202
Discontinued operations:	'	'	'
Net cash from (used in) discontinued operating activities	5.3	-1.1	-74.2
Net cash from (used in) discontinued investing activities	29.1	33.5	89.9
Net cash from (used in) discontinued financing activities	-20.3	-16.9	15.3
Net cash from (used in) discontinued operations	14.1	15.5	31
Net change in cash and cash equivalents	6.3	16.7	8.9
Cash and cash equivalents, beginning of period	43.5	26.8	17.9
Cash and cash equivalents, end of period	49.8	43.5	26.8
Cash paid for:	'	'	'
Interest	92.2	76.3	73.1
Income taxes	33.5	41.9	53.1
Seller financed/assumed debt	'	'	$4.90

CONSOLIDATED_STATEMENTS_OF_CAS1

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
CONSOLIDATED STATEMENTS OF CASH FLOWS	'	'	'
Dealership acquisitions net, repayment of sellers' floor plan notes payable	$29.60	$74.90	$54.50
5.75% Notes	'	'	'
Statement	'	'	'
Interest rate (as a percent)	5.75%	5.75%	5.75%
7.75% Notes	'	'	'
Statement	'	'	'
Interest rate (as a percent)	7.75%	7.75%	7.75%
3.5% Notes	'	'	'
Statement	'	'	'
Interest rate (as a percent)	3.50%	3.50%	3.50%

CONSOLIDATED_STATEMENT_OF_EQUI

CONSOLIDATED STATEMENT OF EQUITY (USD $)	Total	Total Stockholders' Equity Attributable to Penske Automotive Group	Voting and Non-voting Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interest
In Millions, except Share data, unless otherwise specified	USD ($)	USD ($)		USD ($)	USD ($)	USD ($)	USD ($)
Balance at Dec. 31, 2010	$1,055	$1,050.70	'	$738.70	$312.10	($0.10)	$4.30
Balance (in shares) at Dec. 31, 2010	'	'	92,099,552	'	'	'	'
Increase (decrease) in stockholders' equity	'	'	'	'	'	'	'
Equity compensation	5.1	5.1	'	5.1	'	'	'
Equity compensation (in shares)	'	'	391,904	'	'	'	'
Exercise of options, including tax benefit of $0.2	3.4	3.4	'	3.4	'	'	'
Exercise of options, including tax benefit of $0.2 (in shares)	'	'	235,668	'	'	'	'
Repurchase of common stock	-44.3	-44.3	'	-44.3	'	'	'
Repurchase of common stock (in shares)	-2,449,768	'	-2,449,768	'	'	'	'
Dividends ($0.62 ,$0.46 and $0.24 per share for the period 2013 ,2012 and 2011)	-22	-22	'	'	-22	'	'
Distributions to non-controlling interests	-1.4	'	'	'	'	'	-1.4
Purchase of subsidiary shares from non-controlling interest	-0.8	-0.8	'	-0.8	'	'	'
Sale of subsidiary shares to non-controlling interest	0.3	0.2	'	0.2	'	'	0.1
Foreign currency translation	-5.8	-5.8	'	'	'	-5.8	'
Interest rate swaps	-9.6	-9.6	'	'	'	-9.6	'
Other	-8.7	-8.7	'	'	'	-8.7	'
Net income	178.3	176.9	'	'	176.9	'	1.4
Balance at Dec. 31, 2011	1,149.50	1,145.10	'	702.3	467	-24.2	4.4
Balance (in shares) at Dec. 31, 2011	'	'	90,277,356	'	'	'	'
Increase (decrease) in stockholders' equity	'	'	'	'	'	'	'
Equity compensation	6.6	6.6	'	6.6	'	'	'
Equity compensation (in shares)	'	'	423,040	'	'	'	'
Repurchase of common stock	-9.8	-9.8	'	-9.8	'	'	'
Repurchase of common stock (in shares)	-405,631	'	-405,631	'	'	'	'
Dividends ($0.62 ,$0.46 and $0.24 per share for the period 2013 ,2012 and 2011)	-41.5	-41.5	'	'	-41.5	'	'
Repurchase of 3.5% senior subordinated convertible notes	0.6	0.6	'	0.6	'	'	'
Distributions to non-controlling interests	-1.4	'	'	'	'	'	-1.4
Sale of subsidiary shares to non-controlling interest	7.5	0.3	'	0.3	'	'	7.2
Foreign currency translation	18.5	18.3	'	'	'	18.3	0.2
Interest rate swaps	1	1	'	'	'	1	'
Other	-1.9	-1.9	'	'	'	-1.9	'
Net income	187.2	185.5	'	'	185.5	'	1.7
Balance at Dec. 31, 2012	1,316.30	1,304.20	'	700	611	-6.8	12.1
Balance (in shares) at Dec. 31, 2012	'	'	90,294,765	'	'	'	'
Increase (decrease) in stockholders' equity	'	'	'	'	'	'	'
Equity compensation	9.2	9.2	'	9.2	'	'	'
Equity compensation (in shares)	'	'	456,784	'	'	'	'
Repurchase of common stock	-15.8	-15.8	'	-15.8	'	'	'
Repurchase of common stock (in shares)	-410,000	'	-507,818	'	'	'	'
Dividends ($0.62 ,$0.46 and $0.24 per share for the period 2013 ,2012 and 2011)	-56	-56	'	'	-56	'	'
Distributions to non-controlling interests	-1.3	'	'	'	'	'	-1.3
Sale of subsidiary shares to non-controlling interest	4.5	0.2	'	0.2	'	'	4.3
Deconsolidation of Italian investment	-8.3	'	'	'	'	'	-8.3
Reconsolidation of Italian investment	8.9	'	'	'	'	'	8.9
Foreign currency translation	11.5	11	'	'	'	11	0.5
Interest rate swaps	4	4	'	'	'	4	'
Other	3.4	3.4	'	'	'	3.4	'
Net income	245.7	244.2	'	'	244.2	'	1.5
Balance at Dec. 31, 2013	$1,522.10	$1,504.40	'	$693.60	$799.20	$11.60	$17.70
Balance (in shares) at Dec. 31, 2013	'	'	90,243,731	'	'	'	'

CONSOLIDATED_STATEMENT_OF_EQUI1

CONSOLIDATED STATEMENT OF EQUITY (Parenthetical) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Exercise of options, tax benefit	'	'	$0.20
Dividends per share (in dollars per share)	$0.62	$0.46	$0.24
3.5% Notes	'	'	'
Interest rate (as a percent)	3.50%	3.50%	3.50%

Organization_and_Summary_of_Si

Organization and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Organization and Summary of Significant Accounting Policies	'
Organization and Summary of Significant Accounting Policies	'
	1. Organization and Summary of Significant Accounting Policies
	Unless the context otherwise requires, the use of the terms "PAG," "we," "us," and "our" in these Notes to the Consolidated Financial Statements refers to Penske Automotive Group, Inc. and its consolidated subsidiaries.
	Business Overview and Concentrations
	We are an international transportation services company, operating retail automotive dealerships, commercial vehicle distribution and car rental franchises.
	Automotive Dealership.    We are the second largest automotive retailer headquartered in the U.S. as measured by the $14.7 billion in total revenue we generated in 2013. As of December 31, 2013, we operated 324 automotive retail franchises, of which 176 franchises are located in the U.S. and 148 franchises are located outside of the U.S. The franchises outside the U.S. are located primarily in the U.K.
	We are engaged in the sale of new and used motor vehicles and related products and services, including vehicle service, collision repair, and placement of finance and lease contracts, third-party insurance products and other aftermarket products. We operate dealerships under franchise agreements with a number of automotive manufacturers and distributors. In accordance with individual franchise agreements, each dealership is subject to certain rights and restrictions typical of the industry. The ability of the manufacturers to influence the operations of the dealerships, or the loss of a significant number of franchise agreements, could have a material impact on our results of operations, financial position and cash flows.
	For the year ended December 31, 2013, BMW/MINI franchises accounted for 25% of our total automotive dealership revenues, Audi/Volkswagen/Porsche/Bentley franchises accounted for 21%, Toyota/Lexus/Scion franchises accounted for 15%, Honda/Acura franchises accounted for 12%, and Mercedes-Benz/Sprinter/smart accounted for 11%. No other manufacturers' franchises accounted for more than 10% of our total automotive dealership revenues. At December 31, 2013 and 2012, we had receivables from manufacturers of $145.3 million and $125.0 million, respectively. In addition, a large portion of our contracts in transit, which are included in accounts receivable, are due from manufacturers' captive finance subsidiaries.
	During the year ended December 31, 2013, we acquired nine franchises. We were also awarded one franchise. We disposed of 30 franchises representing ten different brands, principally consisting of ten Toyota/Lexus and fifteen Chrysler/Jeep/Dodge franchises in the U.K.
	Commercial Vehicle.    On August 30, 2013, we completed the acquisition of Western Star Trucks Australia, the exclusive importer and distributor of Western Star heavy duty trucks (a Daimler brand), MAN heavy and medium duty trucks and buses (a VW Group brand), and Dennis Eagle refuse collection vehicles, together with associated parts across Australia, New Zealand and portions of Southeast Asia. The business also includes three retail commercial vehicle dealerships. From our acquisition of this business on August 30, 2013 through December 31, 2013, this business generated $152.5 million of revenue through the distribution and retail sale of vehicles and parts to a network of more than 70 dealership locations.
	Car Rental.    We are the Hertz car rental franchisee in the Memphis, Tennessee market and certain Indiana markets. We currently manage more than fifty on- and off-airport Hertz car rental locations. Our car rental business generated $52.6 million of revenue during the year ended December 31, 2013 and complements our existing U.S. automotive dealership operations.
	Penske Truck Leasing.    We hold a 9.0% limited partnership interest in Penske Truck Leasing Co., L.P. ("PTL"), a leading provider of transportation services and supply chain management.
	Basis of Presentation
	Results for 2012 include $17.8 million of pre-tax costs associated with the repurchase and redemption of our previously outstanding $375.0 million of 7.75% senior subordinated notes. Results for 2011 include an $11.0 million net income tax benefit. The components of the net benefit include (a) a $17.0 million positive adjustment primarily from the release of amounts previously recorded in the U.K. as uncertain tax positions as such positions were accepted by the U.K. tax authorities and (b) a negative adjustment relating to a valuation allowance against certain U.K. deferred tax assets of $6.0 million as evidence supporting the future realizability of such assets was no longer available.
	The consolidated financial statements include all majority-owned subsidiaries. Investments in affiliated companies, representing an ownership interest in the voting stock of the affiliate of between 20% and 50% or an investment in a limited partnership or a limited liability corporation for which our investment is more than minor, are stated at the cost of acquisition plus our equity in undistributed net earnings since acquisition. All intercompany accounts and transactions have been eliminated in consolidation. We evaluated subsequent events through March 3, 2014, the date the consolidated financial statements were filed with the SEC.
	The consolidated financial statements, including the comparative periods presented, have been adjusted for entities that have been treated as discontinued operations through December 31, 2013 in accordance with generally accepted accounting principles.
	Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The accounts requiring the use of significant estimates include accounts receivable, inventories, income taxes, intangible assets and certain reserves.
	Cash and Cash Equivalents
	Cash and cash equivalents include all highly-liquid investments that have an original maturity of three months or less at the date of purchase.
	Contracts in Transit
	Contracts in transit represent receivables from unaffiliated finance companies relating to the sale of customers' installment sales and lease contracts arising in connection with the sale of a vehicle by us. Contracts in transit, included in accounts receivable, net in our consolidated balance sheets, amounted to $255.9 million and $236.2 million as of December 31, 2013 and 2012, respectively.
	Inventory Valuation
	Inventories are stated at the lower of cost or market. Cost for new and used vehicle inventories includes acquisition, reconditioning, dealer installed accessories, and transportation expenses and is determined using the specific identification method. Inventories of automotive dealership parts and accessories are accounted for using the "first-in, first-out" ("FIFO") method of inventory accounting and the cost is based on factory list prices.
	Property and Equipment
	Property and equipment are recorded at cost and depreciated over estimated useful lives using the straight-line method. Useful lives for purposes of computing depreciation for assets, other than leasehold improvements, range between 3 and 15 years. Car rental fleet vehicles are depreciated to estimated fair market value over a period between 12 and 24 months, which is the average length of time a vehicle remains in our car rental fleet. Leasehold improvements and equipment under capital lease are depreciated over the shorter of the term of the lease or the estimated useful life of the asset, not to exceed 40 years.
	Expenditures relating to recurring repair and maintenance are expensed as incurred. Expenditures that increase the useful life or substantially increase the serviceability of an existing asset are capitalized. When equipment is sold or otherwise disposed of, the cost and related accumulated depreciation are removed from the balance sheet, with any resulting gain or loss being reflected in income.
	Income Taxes
	Tax regulations may require items to be included in our tax return at different times than those items are reflected in our financial statements. Some of the differences are permanent, such as expenses that are not deductible on our tax return, and some are temporary differences, such as the timing of depreciation expense. Temporary differences create deferred tax assets and liabilities. Deferred tax assets generally represent items that will be used as a tax deduction or credit in our tax return in future years which we have already recorded in our financial statements. Deferred tax liabilities generally represent deductions taken on our tax return that have not yet been recognized as an expense in our financial statements. We establish valuation allowances for our deferred tax assets if the amount of expected future taxable income is not more likely than not to allow for the use of the deduction or credit.
	Intangible Assets
	Our principal intangible assets relate to our franchise agreements with vehicle manufacturers and distributors, which represent the estimated value of franchises acquired in business combinations, and goodwill, which represents the excess of cost over the fair value of tangible and identified intangible assets acquired in business combinations. We believe the franchise values of our automotive dealerships have an indefinite useful life based on the following:
	•
	Automotive retailing is a mature industry and is based on franchise agreements with the vehicle manufacturers and distributors;
	•
	There are no known changes or events that would alter the automotive retailing franchise environment;
	•
	Certain franchise agreement terms are indefinite;
	•
	Franchise agreements that have limited terms have historically been renewed by us without substantial cost; and
	•
	Our history shows that manufacturers and distributors have not terminated our franchise agreements.
	We also believe the franchise values of our car rental market areas have an indefinite useful life because car rental is a mature industry for which the franchise environment is relatively static. Also, we do not anticipate difficulty renewing our long-term franchise agreements.
	Impairment Testing
	Franchise value impairment is assessed during the fourth quarter every year and upon the occurrence of an indicator of impairment through a comparison of its carrying amount and estimated fair value. An indicator of impairment exists if the carrying value of a franchise exceeds its estimated fair value and an impairment loss may be recognized up to that excess. The fair value of franchise value is determined using a discounted cash flow approach, which includes assumptions about revenue and profitability growth, franchise profit margins, and the cost of capital. We also evaluate our franchise agreements in connection with the annual impairment testing to determine whether events and circumstances continue to support our assessment that the franchise agreements have an indefinite life.
	Goodwill impairment is assessed at the reporting unit level during the fourth quarter every year and upon the occurrence of an indicator of impairment. Our operations are organized by management into operating segments by line of business and geography. We have determined that we have two reportable segments as defined in generally accepted accounting principles for segment reporting: (i) Retail, consisting of our automotive retail operations, and (ii) Other, consisting of our commercial vehicle operating segment, our car rental business operating segment, and our investments in non-automotive retail operations. We have determined that the dealerships in each of our operating segments within the Retail reportable segment are components that are aggregated into four geographical reporting units for the purpose of goodwill impairment testing, as they (A) have similar economic characteristics (all are automotive dealerships having similar margins), (B) offer similar products and services (all sell new and used vehicles, service, parts and third-party finance and insurance products), (C) have similar target markets and customers (generally individuals) and (D) have similar distribution and marketing practices (all distribute products and services through dealership facilities that market to customers in similar fashions). The geographic reporting units are Eastern, Central, and Western United States and International. The goodwill included in our Other reportable segment relates to our commercial vehicle operating segment and our car rental business operating segment. The car rental business operating segment has been identified as its own reporting unit. Our commercial vehicle operating segment has two geographic reporting units.
	For our retail operations reporting unit, we prepare a qualitative assessment of the carrying value of goodwill using the criteria in ASC 350-20-35-3 to determine whether it is more likely than not that a reporting unit's fair value is less than its carrying value. If it were determined through the qualitative assessment that a reporting unit's fair value is more likely than not greater than its carrying value, additional analysis would be unnecessary. During 2013, we concluded that it was not more likely than not that any of the retail operations reporting units' fair values were less than their carrying amount. If the additional impairment testing was necessary, we would have estimated the fair value of our reporting units using an "income" valuation approach. The "income" valuation approach estimates our enterprise value using a net present value model, which discounts projected free cash flows of our business using the weighted average cost of capital as the discount rate. In connection with this process, we also reconcile the estimated aggregate fair values of our reporting units to our market capitalization. We believe that this reconciliation process is consistent with a market participant perspective. This consideration would also include a control premium that represents the estimated amount an investor would pay for our equity securities to obtain a controlling interest and other significant assumptions including revenue and profitability growth, franchise profit margins, residual values and the cost of capital.
	For our car rental business reporting unit, we performed our initial impairment test by comparing the estimated fair value of the reporting unit with its carrying value. We estimated the fair value of our reporting unit using an "income" valuation approach. We concluded that the fair value of the reporting unit exceeded its carrying value.
	Investments
	We account for each of our investments under the equity method, pursuant to which we record our proportionate share of the investee's income each period. The net book value of our investments was $346.9 million and $303.2 million as of December 31, 2013 and 2012, respectively. Investments for which there is not a liquid, actively traded market are reviewed periodically by management for indicators of impairment. If an indicator of impairment is identified, management estimates the fair value of the investment using a discounted cash flow approach, which includes assumptions relating to revenue and profitability growth, profit margins, residual values and the cost of capital. Declines in investment values that are deemed to be other than temporary may result in an impairment charge reducing the investments' carrying value to fair value.
	Foreign Currency Translation
	For all of our foreign operations, the functional currency is the local currency. The revenue and expense accounts of our foreign operations are translated into U.S. dollars using the average exchange rates that prevailed during the period. Assets and liabilities of foreign operations are translated into U.S. dollars using period end exchange rates. Cumulative translation adjustments relating to foreign functional currency assets and liabilities are recorded in accumulated other comprehensive income (loss), a separate component of equity.
	Fair Value of Financial Instruments
	Accounting standards define fair value as the price that would be received from selling an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Accounting standards establish a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value and also establishes the following three levels of inputs that may be used to measure fair value:
	Level 1	Quoted prices in active markets for identical assets or liabilities
	Level 2	Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted market prices in markets that are not active; or model-derived valuations or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities
	Level 3	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities
	Our financial instruments consist of cash and cash equivalents, debt, floor plan notes payable, forward exchange contracts and interest rate swaps used to hedge future cash flows. Other than our fixed rate debt, the carrying amount of all significant financial instruments approximates fair value due either to length of maturity, the existence of variable interest rates that approximate prevailing market rates, or as a result of mark to market accounting.
	Our fixed rate debt consists of amounts outstanding under our senior subordinated notes and mortgage facilities. We estimate the fair value of our senior unsecured notes using quoted prices for the identical liability (Level 2), and we estimate the fair value of our mortgage facilities using a present value technique based on our current market interest rates for similar types of financial instruments (Level 2). A summary of the carrying values and fair values of our 5.75% senior subordinated notes and our fixed rate mortgage facilities are as follows:
		December 31, 2013				December 31, 2012
		Carrying Value		Fair Value		Carrying Value		Fair Value
	5.75% senior subordinated notes due 2022	$	550	$	565.1	$	550	$	563.8
	Mortgage facilities		118.6		117		104		105.5
	Revenue Recognition
	Vehicle, Parts and Service Sales
We record revenue when vehicles are delivered and title has passed to the customer, when vehicle service or repair work is completed and when parts are delivered to our customers. Sales promotions that we offer to customers are accounted for as a reduction of revenues at the time of sale. Rebates and other incentives offered directly to us by manufacturers are recognized as a reduction of cost of sales. Reimbursements of qualified advertising expenses are treated as a reduction of selling, general and administrative expenses. The amounts received under certain manufacturer rebate and incentive programs are based on the attainment of program objectives, and such earnings are recognized either upon the sale of the vehicle for which the award was received, or upon attainment of the particular program goals if not associated with individual vehicles. Taxes collected from customers and remitted to governmental authorities are recorded on a net basis (excluded from revenue).
Finance and Insurance Sales
Subsequent to the sale of a vehicle to a customer, we sell installment sale contracts to various financial institutions on a non-recourse basis (with specified exceptions) to mitigate the risk of default. We receive a commission from the lender equal to either the difference between the interest rate charged to the customer and the interest rate set by the financing institution or a flat fee. We also receive commissions for facilitating the sale of various products to customers, including guaranteed auto protection insurance, vehicle theft protection and extended service contracts. These commissions are recorded as revenue at the time the customer enters into the contract. In the case of finance contracts, a customer may prepay or fail to pay their contract, thereby terminating the contract. Customers may also terminate extended service contracts and other insurance products, which are fully paid at purchase, and become eligible for refunds of unused premiums. In these circumstances, a portion of the commissions we received may be charged back based on the terms of the contracts. The revenue we record relating to these transactions is net of an estimate of the amount of chargebacks we will be required to pay. Our estimate is based upon our historical experience with similar contracts, including the impact of refinance and default rates on retail finance contracts and cancellation rates on extended service contracts and other insurance products. Aggregate reserves relating to chargeback activity were $23.3 million and $23.4 million as of December 31, 2013 and 2012, respectively.
Commercial Vehicle Revenue
Revenue from the distribution of goods is recognized at the time of delivery of goods to the retailer.
Car Rental Revenue
Rental and rental related revenues are recognized over the period the vehicles and accessories are rented based on the terms of the rental contract. Taxes collected from customers and remitted to the governmental authorities are recorded on a net basis (excluded from revenue).
Defined Contribution Plans
We sponsor a number of defined contribution plans covering a significant majority of our employees. Our contributions to such plans are discretionary and are based on the level of compensation and contributions by plan participants. We incurred expense of $15.1 million, $13.7 million, and $11.8 million relating to such plans during the years ended December 31, 2013, 2012, and 2011, respectively.
Advertising
Advertising costs are expensed as incurred or when such advertising takes place. We incurred net advertising costs of $82.9 million, $81.4 million, and $68.7 million during the years ended December 31, 2013, 2012, and 2011, respectively. Qualified advertising expenditures reimbursed by manufacturers, which are treated as a reduction of advertising expense, were $13.1 million, $12.1 million, and $10.5 million during the years ended December 31, 2013, 2012, and 2011, respectively.
Self Insurance
We retain risk relating to certain of our general liability insurance, workers' compensation insurance, auto physical damage insurance, property insurance, employment practices liability insurance, directors and officers insurance, and employee medical benefits in the U.S. As a result, we are likely to be responsible for a significant portion of the claims and losses incurred under these programs. The amount of risk we retain varies by program, and, for certain exposures, we have pre-determined maximum loss limits for certain individual claims and/or insurance periods. Losses, if any, above such pre-determined loss limits are paid by third-party insurance carriers. Certain insurers have limited available property coverage in response to the natural catastrophes experienced in recent years. Our estimate of future losses is prepared by management using our historical loss experience and industry-based development factors. Aggregate reserves relating to retained risk were $21.1 million and $20.1 million as of December 31, 2013 and 2012, respectively. Changes in the reserve estimate during 2013 relate primarily to our general liability and workers compensation programs.
Earnings Per Share
Basic earnings per share is computed using net income attributable to Penske Automotive Group common stockholders and the number of weighted average shares of voting common stock outstanding, including outstanding unvested restricted stock awards which contain rights to non-forfeitable dividends. Diluted earnings per share is computed using net income attributable to Penske Automotive Group common stockholders and the number of weighted average shares of voting common stock outstanding, adjusted for the dilutive effect of stock options. A reconciliation of the number of shares used in the calculation of basic and diluted earnings per share for the years ended December 31, 2013, 2012, and 2011 follows:
	Year Ended December 31,
	2013		2012		2011
Weighted average number of common shares outstanding		90,273,747		90,318,315		91,153,620
Effect of non-participatory equity compensation		56,874		24,000		120,512
Weighted average number of common shares outstanding, including effect of dilutive securities		90,330,621		90,342,315		91,274,132
Hedging
Generally accepted accounting principles relating to derivative instruments and hedging activities require all derivatives, whether designated in hedging relationships or not, to be recorded on the balance sheet at fair value. These accounting principles also define requirements for designation and documentation of hedging relationships, as well as ongoing effectiveness assessments, which must be met in order to qualify for hedge accounting. For a derivative that does not qualify as a hedge, changes in fair value are recorded in earnings immediately. If the derivative is designated in a fair-value hedge, the changes in the fair value of the derivative and the hedged item are recorded in earnings. If the derivative is designated as a cash-flow hedge, effective changes in the fair value of the derivative are recorded in accumulated other comprehensive income (loss), a separate component of equity, and recorded in the income statement only when the hedged item affects earnings. Changes in the fair value of the derivative attributable to hedge ineffectiveness are recorded in earnings immediately.
Stock-Based Compensation
Generally accepted accounting principles relating to share-based payments require us to record compensation expense for all awards based on their grant-date fair value. Our share-based payments have generally been in the form of "non-vested shares," the fair value of which are measured as if they were vested and issued on the grant date.
New Accounting Pronouncements
In February 2013, the Financial Accounting Standards Board ("FASB") issued ASU No. 2013-02, "Comprehensive Income (Topic 220)—Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income." ASU No. 2013-02 requires disclosure of amounts reclassified out of accumulated other comprehensive income by component. In addition, we are required to present either on the face of the statement of income or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required to be reclassified to net income in its entirety in the same reporting period. For amounts not reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional detail about those amounts. We complied with the disclosure requirements of this ASU as shown in Note 15.
In March 2013, the FASB issued ASU No. 2013-05, "Foreign Currency Matters (Topic 830)—Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity." ASU No. 2013-05 resolves the diversity in practice about whether Subtopic 810-10, Consolidation—Overall, or Subtopic 830-30, Foreign Currency Matters—Translation of Financial Statements, applies to the release of the cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a business within a foreign entity. This ASU is effective prospectively for the first annual period beginning after December 15, 2013. We do not expect adoption of ASU No. 2013-05 to affect our consolidated financial position, results of operations, or cash flows.
In July 2013, the FASB issued ASU No. 2013-10, "Derivatives and Hedging (Topic 815)—Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes." The amendments in ASU No. 2013-10 permit the Fed Funds Effective Swap Rate to be used as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815, in addition to UST and LIBOR. This ASU is effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. We do not expect the adoption of ASU No. 2013-10 to affect our consolidated financial position, results of operations, or cash flows.
In July 2013, the FASB issued ASU No. 2013-11, "Income Taxes (Topic 740)—Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists." ASU No. 2013-11 resolves the diversity in practice regarding the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This ASU is effective for the first annual period beginning after December 15, 2013. We do not expect adoption of ASU No. 2013-11 to affect our consolidated financial position, results of operations, or cash flows.

Equity_Method_Investees

Equity Method Investees	12 Months Ended
	Dec. 31, 2013
Equity Method Investees	'
Equity Method Investees	'
	2. Equity Method Investees
	As of December 31, 2013, we have investments in the following companies that are accounted for under the equity method: the Jacobs Group (50%), the Nix Group (50%), Penske Wynn Ferrari Maserati (50%), Max Cycles (50%), Innovative Media (45%), QEK Global Solutions (31%), Around-The Clock Freightliner (27%), Fleetwash, LLC (7%), and National Powersport Auctions (7%). Jacobs Group, Nix Group, and Penske Wynn Ferrari Maserati are engaged in the sale and servicing of automobiles. Max Cycles is engaged in the sale and servicing of BMW motorcycles, Innovative Media provides dealership graphics, QEK is an automotive fleet management company, Around-The Clock Freightliner is a retailer of Daimler branded medium, heavy and light-duty trucks in Texas and Oklahoma, Fleetwash provides vehicle fleet washing services, and National Powersport Auctions is an auctioneer of powersport vehicles. These investments in entities accounted for under the equity method amounted to $78.1 million and $60.4 million at December 31, 2013 and 2012, respectively.
	We also have a 9.0% limited partnership interest in PTL, a leading provider of transportation services and supply chain management. Our investment in PTL, which is accounted for under the equity method, amounted to $268.8 and $242.8 million at December 31, 2013 and 2012, respectively.
	The combined results of operations and financial position of our equity method investees are summarized as follows:
	Condensed income statement information:
		Year Ended December 31,
		2013		2012		2011
	Revenues	$	6,177.00	$	6,043.40	$	5,970.60
	Gross margin		2,043.50		1,897.30		1,802.30
	Net income		304		284.2		255.1
	Equity in net income of affiliates		30.7		27.6		25.4
	Condensed balance sheet information:
		December 31,
		2013		2012
	Current assets	$	1,194.20	$	1,129.70
	Noncurrent assets		8,377.80		8,139.10
	Total assets	$	9,572.00	$	9,268.80
	Current liabilities	$	888.8	$	866.2
	Noncurrent liabilities		6,517.50		6,475.50
	Equity		2,165.70		1,927.10
	Total liabilities and equity	$	9,572.00	$	9,268.80

Business_Combinations

Business Combinations	12 Months Ended
	Dec. 31, 2013
Business Combinations	'
Business Combinations	'
	3. Business Combinations
	During 2013 we acquired our commercial vehicle business, one Hertz car rental franchise market area and nine automotive retail franchises. These 2013 acquirees generated $229.1 million of revenue and $9.7 million of pre-tax income from our date of acquisition through December 31, 2013. During 2012 we acquired 26 franchises in our automotive retail operations. Our financial statements include the results of operations of the acquired entities from the date of acquisition. The fair value of the assets acquired and liabilities assumed have been recorded in our consolidated financial statements, and may be subject to adjustment pending completion of final valuation. A summary of the aggregate consideration paid and the aggregate amounts of the assets acquired and liabilities assumed for the years ended December 31, 2013 and 2012 follows:
		December 31,
		2013			2012
	Accounts receivable	$	20.1		$	28.9
	Inventory		161.6			123.7
	Other current assets		2.7			0.6
	Property and equipment		34.1			64.2
	Indefinite-lived intangibles		191.4			115.1
	Other non-current assets		9			0.7
	Current liabilities		(79.5	)		(59.7	)
	Non-current liabilities		(1.3	)		(23.3	)
	Total cash used in acquisitions		338.1			250.2
	The following unaudited consolidated pro forma results of operations of PAG for the years ended December 31, 2013 and 2012 give effect to acquisitions consummated during 2013 and 2012 as if they had occurred on January 1, 2012:
		Year Ended December 31,
		2013			2012
	Revenues	$	15,277.70		$	14,153.40
	Income from continuing operations		267.5			225
	Net income		260.5			214.8
	Income from continuing operations per diluted common share	$	2.94		$	2.47
	Net income per diluted common share	$	2.88		$	2.38

Discontinued_Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2013
Discontinued Operations	'
Discontinued Operations	'
	4. Discontinued Operations
	We account for dispositions in our retail operations as discontinued operations when it is evident that the operations and cash flows of a franchise being disposed of will be eliminated from on-going operations and that we will not have any significant continuing involvement in its operations.
	In evaluating whether the cash flows of a dealership in our Retail reportable segment will be eliminated from ongoing operations, we consider whether it is likely that customers will migrate to similar franchises that we own in the same geographic market. Our consideration includes an evaluation of the brands sold at other dealerships we operate in the market and their proximity to the disposed dealership. When we dispose of franchises, we typically do not have continuing brand representation in that market. If the franchise being disposed of is located in a complex of PAG owned dealerships, we do not treat the disposition as a discontinued operation if we believe that the cash flows previously generated by the disposed franchise will be replaced by expanded operations of the remaining or replacement franchises.
	Combined financial information regarding entities accounted for as discontinued operations follows:
		Year Ended December 31,
		2013			2012			2011
	Revenues	$	263.2		$	508.8		$	830.1
	Pre-tax income (loss)		(7.4	)		(17.5	)		0.3
	Gain (loss) on disposal		0.8			8.1			3.3
		2013			2012
	Inventory	$	35.8		$	69.2
	Other assets		28			54.2
	Total assets		63.8			123.4
	Floor plan notes payable (including non-trade)		22.7			54.3
	Other liabilities		12.8			21.3
	Total liabilities		35.5			75.6

Inventories

Inventories	12 Months Ended
	Dec. 31, 2013
Inventories	'
Inventories	'
	5. Inventories
	Inventories consisted of the following:
		December 31,
		2013		2012
	New vehicles	$	1,725.70	$	1,410.50
	Used vehicles		588.5		479.7
	Commercial vehicles		126.9		—
	Parts, accessories and other		97.2		85.5
	Total inventories	$	2,538.30	$	1,975.70
	We receive credits from certain vehicle manufacturers that reduce cost of sales when the vehicles are sold. Such credits amounted to $35.5 million, $31.6 million, and $27.8 million during the years ended December 31, 2013, 2012, and 2011, respectively.

Property_and_Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2013
Property and Equipment	'
Property and Equipment	'
	6. Property and Equipment
	Property and equipment consisted of the following:
		December 31,
		2013			2012
	Buildings and leasehold improvements	$	1,096.70		$	941
	Furniture, fixtures and equipment		574.5			428.5
	Total		1,671.20			1,369.50
	Less: Accumulated depreciation		(430.2	)		(346.6	)
	Property and equipment, net	$	1,241.00		$	1,022.90
	As of December 31, 2013 and 2012, approximately $27.8 million and $27.3 million, respectively, of capitalized interest is included in buildings and leasehold improvements and is being depreciated over the useful life of the related assets.

Intangible_Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2013
Intangible Assets	'
Intangible Assets	'
	7. Intangible Assets
	Following is a summary of the changes in the carrying amount of goodwill and franchise value during the years ended December 31, 2013 and 2012, net of accumulated impairment losses recorded prior to December 31, 2011 of $606.3 million and $37.1 million, respectively:
		Goodwill			Franchise
					Value
	Balance—December 31, 2011	$	894.3		$	219.3
	Additions		61.7			53.4
	Foreign currency translation		15.7			3.9
	Balance—December 31, 2012		971.7			276.6
	Additions		169.3			22.1
	Deconsolidation of Italian investment		(7.2	)		(2.9	)
	Reconsolidation of Italian investment		7.4			3.1
	Foreign currency translation		7.5			1.4
	Balance—December 31, 2013	$	1,148.70		$	300.3
	Following is a summary of the changes in the carrying amount of goodwill by reportable segment during the years ended December 31, 2013 and 2012:
		Retail			Other			Total
	Balance—December 31, 2011	$	894.3		$	—		$	894.3
	Additions		57.8			3.9			61.7
	Foreign currency translation		15.7			—			15.7
	Balance—December 31, 2012		967.8			3.9			971.7
	Additions		49.6			119.7			169.3
	Deconsolidation of Italian investment		(7.2	)		—			(7.2	)
	Reconsolidation of Italian investment		7.4			—			7.4
	Foreign currency translation		9			(1.5	)		7.5
	Balance—December 31, 2013	$	1,026.60		$	122.1		$	1,148.70
	We test for impairment in our intangible assets at least annually. We did not record any impairment charges relating to our intangibles in 2013, 2012 or 2011.

Vehicle_Financing

Vehicle Financing	12 Months Ended
	Dec. 31, 2013
Vehicle Financing	'
Vehicle Financing	'
	8. Vehicle Financing
	We finance substantially all of the commercial vehicles we purchase for distribution, new vehicles for retail sale and a portion of our used vehicle inventories for retail sale under revolving floor plan arrangements with various lenders, including the captive finance companies associated with automotive manufacturers. In the U.S., the floor plan arrangements are due on demand; however, we have not historically been required to repay floor plan advances prior to the sale of the vehicles that have been financed. We typically make monthly interest payments on the amount financed. Outside of the U.S., substantially all of the floor plan arrangements are payable on demand or have an original maturity of 90 days or less, and we are generally required to repay floor plan advances at the earlier of the sale of the vehicles that have been financed or the stated maturity.
	The floor plan agreements typically grant a security interest in substantially all of the assets of our dealership subsidiaries, and in the U.S., Australia and New Zealand are guaranteed by us. Interest rates under the floor plan arrangements are variable and increase or decrease based on changes in the prime rate, defined London Interbank Offered Rate ("LIBOR"), the Finance House Bank Rate, the Euro Interbank Offered Rate or Australian or New Zealand Bank Bill Swap Rate ("BBSW"). The weighted average interest rate on floor plan borrowings, including the effect of the interest rate swap discussed in Note 10, was 1.8%, 2.1%, and 1.8% for 2013, 2012, and 2011, respectively. We classify floor plan notes payable to a party other than the manufacturer of a particular new vehicle, and all floor plan notes payable relating to pre-owned vehicles, as floor plan notes payable—non-trade on our consolidated balance sheets and classify related cash flows as a financing activity on our consolidated statements of cash flows.

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2013
Long-Term Debt	'
Long-Term Debt	'
	9. Long-Term Debt
	Long-term debt consisted of the following:
		December 31,
		2013			2012
	U.S. credit agreement—revolving credit line	$	90		$	50
	U.S. credit agreement—term loan		98			110
	U.K. credit agreement—revolving credit line		106			48.7
	U.K. credit agreement—term loan		29.8			39
	U.K. credit agreement—overdraft line of credit		—			6.8
	5.75% senior subordinated notes due 2022		550			550
	Car rental revolver		86.9			23.2
	Working capital loan agreement		—			—
	Mortgage facilities		118.6			104
	Other		3.9			4.8
	Total long-term debt	$	1,083.20		$	936.6
	Less: current portion		(50.0	)		(19.5	)
	Net long-term debt	$	1,033.20		$	917.1
	Scheduled maturities of long-term debt for each of the next five years and thereafter are as follows:
	2014	$	50
	2015		186.7
	2016		194.9
	2017		46.6
	2018		2.9
	2019 and thereafter		602.1
	Total long-term debt reported	$	1,083.20
	U.S. Credit Agreement
	We are party to a credit agreement with Mercedes-Benz Financial Services USA LLC and Toyota Motor Credit Corporation, as amended (the "U.S. credit agreement"), which provides for up to $375.0 million in revolving loans for working capital, acquisitions, capital expenditures, investments and other general corporate purposes, a non-amortizing term loan with a remaining balance of $98.0 million and for an additional $10.0 million of availability for letters of credit, through September 2016. The revolving loans bear interest at a defined LIBOR plus 2.25%, subject to an incremental 1.25% for uncollateralized borrowings in excess of a defined borrowing base. The term loan, which bears interest at defined LIBOR plus 2.25%, may be prepaid at any time, but then may not be re-borrowed.
	The U.S. credit agreement is fully and unconditionally guaranteed on a joint and several basis by our domestic subsidiaries and contains a number of significant covenants that, among other things, restrict our ability to dispose of assets, incur additional indebtedness, repay other indebtedness, pay dividends, create liens on assets, make investments or acquisitions and engage in mergers or consolidations. We are also required to comply with specified financial and other tests and ratios, each as defined in the U.S. credit agreement, including: a ratio of current assets to current liabilities, a fixed charge coverage ratio, a ratio of debt to stockholders' equity and a ratio of debt to earnings before interest, taxes, depreciation and amortization ("EBITDA"). A breach of these requirements would give rise to certain remedies under the agreement, the most severe of which is the termination of the agreement and acceleration of the amounts owed.
	The U.S. credit agreement also contains typical events of default, including change of control, non-payment of obligations and cross-defaults to our other material indebtedness. Substantially all of our domestic assets are subject to security interests granted to lenders under the U.S. credit agreement. As of December 31, 2013, $98.0 million of term loans, $90.0 million of revolving loans, and no letters of credit were outstanding under the U.S. credit agreement. We repaid $12.0 million and $17.0 under the term loan in 2013 and 2012, respectively.
	U.K. Credit Agreement
	Our subsidiaries in the U.K. (the "U.K. subsidiaries") are party to a £100.0 million revolving credit agreement with the Royal Bank of Scotland plc (RBS) and BMW Financial Services (GB) Limited, and an additional £10.0 million demand overdraft line of credit with RBS (collectively, the "U.K. credit agreement") to be used for working capital, acquisitions, capital expenditures, investments and general corporate purposes through November 2015. The revolving loans bear interest between defined LIBOR plus 1.35% and defined LIBOR plus 3.0% and the demand overdraft line of credit bears interest at the Bank of England Base Rate plus 1.75%. As of December 31, 2013, outstanding loans under the U.K. credit agreement amounted to £64.0 million ($106.0 million).
	The U.K. Credit Agreement is fully and unconditionally guaranteed on a joint and several basis by our U.K. subsidiaries, and contains a number of significant covenants that, among other things, restrict the ability of our U.K. subsidiaries to pay dividends, dispose of assets, incur additional indebtedness, repay other indebtedness, create liens on assets, make investments or acquisitions and engage in mergers or consolidations. In addition, our U.K. subsidiaries are required to comply with defined ratios and tests, including: a ratio of earnings before interest, taxes, amortization, and rental payments ("EBITAR") to interest plus rental payments, a measurement of maximum capital expenditures, and a debt to EBITDA ratio. A breach of these requirements would give rise to certain remedies under the agreement, the most severe of which is the termination of the agreement and acceleration of any amounts owed.
	The U.K. credit agreement also contains typical events of default, including change of control and non-payment of obligations and cross-defaults to other material indebtedness of our U.K. subsidiaries. Substantially all of our U.K. subsidiaries' assets are subject to security interests granted to lenders under the U.K. credit agreement. In July 2013, we amended the U.K. credit agreement and U.K. term loan to provide the U.K. subsidiaries with covenant flexibility to fund the purchase of our commercial vehicle business and operate the subsidiaries acquired.
	In 2012, our U.K. subsidiaries entered into a separate agreement with RBS, as agent for National Westminster Bank plc, providing for a £30.0 million term loan which was used for working capital and an acquisition. The term loan is repayable in £1.5 million quarterly installments through 2015 with a final payment of £7.5 million due on December 31, 2015. The term loan bears interest between 2.675% and 4.325%, depending on the U.K. subsidiaries' ratio of net borrowings to earnings before interest, taxes, depreciation and amortization (as defined). As of December 31, 2013, the amount outstanding under the U.K. term loan was £18.0 million ($29.8 million).
	5.75% Senior Subordinated Notes
	In August 2012, we issued $550.0 million in aggregate principal amount of 5.75% Senior Subordinated Notes due 2022 (the "5.75% Notes").
	Interest on the 5.75% Notes is payable semi-annually on April 1 and October 1 of each year. The 5.75% Notes mature on October 1, 2022, unless earlier redeemed or purchased by us. The 5.75% Notes are our unsecured senior subordinated obligations and are guaranteed on an unsecured senior subordinated basis by our existing 100% owned domestic subsidiaries. The 5.75% Notes also contain customary negative covenants and events of default.
	On or after October 1, 2017, we may redeem the 5.75% Notes for cash at the redemption prices noted in the indenture, plus any accrued and unpaid interest. We may also redeem up to 40% of the 5.75% Notes using the proceeds of specified equity offerings at any time prior to October 1, 2015 at a price specified in the indenture.
	If we experience certain "change of control" events specified in the indenture, holders of the 5.75% Notes will have the option to require us to purchase for cash all or a portion of their notes at a price equal to 101% of the principal amount of the notes, plus accrued and unpaid interest. In addition, if we make certain asset sales and do not reinvest the proceeds thereof or use such proceeds to repay certain debt, we will be required to use the proceeds of such asset sales to make an offer to purchase the notes at a price equal to 100% of the principal amount of the notes, plus accrued and unpaid interest.
	Car Rental Revolver
	We are party to a credit agreement with Toyota Motor Credit Corporation that currently provides us with up to $200.0 million in revolving loans for the acquisition of rental vehicles. The revolving loans bear interest at three-month LIBOR plus 2.50%. This agreement provides the lender with a secured interest in the vehicles and our car rental operations' other assets, requires us to make monthly curtailment payments (prepayments of principal) and expires in October 2015. Vehicle principal balances must be paid in full within twelve to twenty-four months, depending on the year, make and model of the vehicle. As of December 31, 2013, outstanding loans under the car rental revolver amounted to $86.9 million.
	Working Capital Loan Agreement
	In December 2013 we entered into a working capital loan agreement with Mercedes-Benz Financial Services Australia Pty Ltd that provides us with up to AU $28.0 million ($25.0 million) of working capital availability. This agreement provides the lender with a secured interest in certain inventory and receivables of our commercial vehicle business. The loan bears interest at the Australian BBSW 30-day Bill Rate plus 2.35%. As of December 31, 2013, no loans were outstanding under the working capital loan agreement.
	Mortgage Facilities
	We are party to several mortgages which bear interest at defined rates and require monthly principal and interest payments. These mortgage facilities also contain typical events of default, including non-payment of obligations, cross-defaults to our other material indebtedness, certain change of control events, and the loss or sale of certain franchises operated at the properties. Substantially all of the buildings and improvements on the properties financed pursuant to the mortgage facilities are subject to security interests granted to the lender. As of December 31, 2013, we owed $118.6 million of principal under our mortgage facilities.

Derivatives_and_Hedging

Derivatives and Hedging	12 Months Ended
	Dec. 31, 2013
Derivatives and Hedging	'
Derivatives and Hedging	'
	10. Derivatives and Hedging
	We periodically use interest rate swaps to manage interest rate risk associated with our variable rate floor plan debt. We are party to interest rate swap agreements through December 2014 pursuant to which the LIBOR portion of $300.0 million of our floating rate floor plan debt is fixed at a rate of 2.135% and $100.0 million of our floating rate floor plan debt is fixed at a rate of 1.55%. We may terminate these agreements at any time, subject to the settlement of the then current fair value of the swap arrangements.
	We used Level 2 inputs to estimate the fair value of the interest rate swap agreements. As of December 31, 2013 and 2012, the fair value of the swaps designated as hedging instruments was estimated to be a liability of $7.7 million and $14.3 million, respectively. During 2013 and 2012, there was no hedge ineffectiveness recorded in our income statement. During the year ended December 31, 2013, the swaps increased the weighted average interest rate on our floor plan borrowings by approximately 31 basis points.
	Our commercial vehicle business sells vehicles and parts purchased from manufacturers in the U.S., Germany, and the U.K. In order to protect against exchange rate movements, we enter into forward foreign exchange contracts against anticipated cash flows. The contracts are timed to mature when major shipments are scheduled to arrive in Australia and when receipt of payment from customers is expected. We classify our forward foreign exchange contracts as cash flow hedges and state them at fair value. We used Level 2 inputs to estimate the fair value of the forward foreign exchange contracts. The fair value of the contracts designated as hedging instruments was estimated to be an asset of $2.2 million as of December 31, 2013.

Commitments_and_Contingent_Lia

Commitments and Contingent Liabilities	12 Months Ended
	Dec. 31, 2013
Commitments and Contingent Liabilities	'
Commitments and Contingent Liabilities	'
	11. Commitments and Contingent Liabilities
	We are involved in litigation which may relate to claims brought by governmental authorities, issues with customers, and employment related matters, including class action claims and purported class action claims. As of December 31, 2013, we were not party to any legal proceedings, including class action lawsuits, that, individually or in the aggregate, are reasonably expected to have a material adverse effect on our results of operations, financial condition or cash flows. However, the results of these matters cannot be predicted with certainty, and an unfavorable resolution of one or more of these matters could have a material effect on our results of operations, financial condition or cash flows.
	We have historically structured our operations so as to minimize ownership of real property. As a result, we lease or sublease substantially all of our facilities. These leases are generally for a period of between five and 20 years, and are typically structured to include renewal options at our election. We estimate the total rent obligations under these leases, including any extension periods we may exercise at our discretion and assuming constant consumer price indices, to be $4.9 billion. Pursuant to the leases for some of our larger facilities, we are required to comply with specified financial ratios, including a "rent coverage" ratio and a debt to EBITDA ratio, each as defined. For these leases, non-compliance with the ratios may require us to post collateral in the form of a letter of credit. A breach of the other lease covenants gives rise to certain remedies by the landlord, the most severe of which include the termination of the applicable lease and acceleration of the total rent payments due under the lease. As of December 31, 2013, we were in compliance with all covenants under these leases.
	Minimum future rental payments required under operating leases in effect as of December 31, 2013 are as follows:
	2014	$	193.6
	2015		194.7
	2016		193.5
	2017		193.3
	2018		191.9
	2019 and thereafter		3,972.20
		$	4,939.20
	Rent expense for the years ended December 31, 2013, 2012, and 2011 amounted to $181.2 million, $171.2 million, and $163.2 million, respectively. Of the total rental payments, $0.1 million, $0.2 million, and $0.4 million, respectively, were made to related parties during 2013, 2012, and 2011, respectively (See Note 12).
	We have sold a number of dealerships to third parties and, as a condition to certain of those sales, remain liable for the lease payments relating to the properties on which those businesses operate in the event of non-payment by the buyer. We are also party to lease agreements on properties that we no longer use in our retail operations that we have sublet to third parties. We rely on subtenants to pay the rent and maintain the property at these locations. In the event the subtenant does not perform as expected, we may not be able to recover amounts owed to us and we could be required to fulfill these obligations. The aggregate rent paid by the tenants on those properties in 2013 was approximately $24.4 million, and, in aggregate, we currently guarantee or are otherwise liable for approximately $266.4 million of these lease payments, including lease payments during available renewal periods.
	We hold a 9.0% limited partnership interest in PTL. Historically General Electric Credit Corporation ("GECC") has provided PTL with a majority of its financing. PTL has refinanced all of its GECC indebtedness. As part of that refinancing, we and the other PTL partners created a new company ("Holdings"), which, together with GECC, co-issued $700.0 million of 3.8% senior unsecured notes due 2019 (the "Holdings Bonds"). GECC agreed to be a co-obligor of the Holdings Bonds in order to achieve lower interest rates on the Holdings Bonds. Additional capital contributions from the members may be required to fund interest and principal payments on the Holdings Bonds. In addition, we have agreed to indemnify GECC for 9.0% of any principal or interest that GECC is required to pay as co-obligor, and pay GECC an annual fee of approximately $0.95 million for acting as co-obligor. The maximum amount of our potential obligations to GECC under this agreement are 9.0% of the required principal repayment due in 2019 (which is expected to be $63.1 million) and 9.0% of interest payments under the Holdings Bonds, plus fees and default interest, if any.
	Our floor plan credit agreement with Mercedes Benz Financial Services Australia ("MBA") provides us revolving loans for the acquisition of commercial vehicles for distribution to our retail network. This facility includes a limited parent guarantee and a commitment to repurchase dealer vehicles in the event the dealer's floor plan agreement with MBA is terminated.
	We have $18.6 million of letters of credit outstanding as of December 31, 2013, and have posted $9.4 million of surety bonds in the ordinary course of business.

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions	'
Related Party Transactions	'
	12. Related Party Transactions
	We are currently a tenant under a number of non-cancelable lease agreements with Automotive Group Realty, LLC and its subsidiaries (together "AGR"), which are subsidiaries of Penske Corporation. During 2013, 2012, and 2011, we paid $0.1 million, $0.2 million, and $0.4 million, respectively, to AGR under these lease agreements. From time to time, we may sell AGR real property and improvements that are subsequently leased by AGR to us. In addition, we may purchase real property or improvements from AGR. Any such transaction is valued at a price that is independently confirmed.
	We sometimes pay to and/or receive fees from Penske Corporation and its affiliates for services rendered in the normal course of business, or to reimburse payments made to third parties on each other's behalf. These transactions are reviewed periodically by our Audit Committee and reflect the provider's cost or an amount mutually agreed upon by both parties. During 2013, 2012, and 2011, Penske Corporation and its affiliates billed us $6.3 million, $5.3 million, and $4.9 million, respectively, and we billed Penske Corporation and its affiliates $24 thousand, $31 thousand, and $72 thousand, respectively, for such services. As of December 31, 2013 and 2012, we had $0 and $2 thousand of receivables from and $0.6 million and $0.5 million of payables to Penske Corporation and its subsidiaries, respectively.
	PAG, Penske Corporation and certain affiliates have entered into a joint insurance agreement which provides that, with respect to any joint insurance (such as our joint commercial crime insurance policy), available coverage with respect to a loss shall be paid to each party per occurrence as stipulated in the policies. In the event of losses by us and Penske Corporation that exceed the limit of liability for any policy or policy period, the total policy proceeds will be allocated based on the ratio of premiums paid.
	We are a 9.0% limited partner of PTL, a leading provider of transportation services and supply chain management. PTL is owned 41.1% by Penske Corporation, 9.0% by us and the remaining 49.1% is owned by direct and indirect subsidiaries of GECC. We are party to agreements among the other partners which, among other things, provide us with specified distribution and governance rights and restricts our ability to transfer our interests. In 2013, 2012, and 2011, we received $9.9 million, $18.5 million, and $7.8 million, respectively, from PTL in pro rata cash dividends.
	We are also party to an agreement pursuant to which PTL subleases a portion of our dealership location in New Jersey for $60 thousand per year plus its pro rata share of certain property expenses. In 2009, PTL began hosting our disaster recovery site. Annual fees paid to PTL for this service are $46 thousand.
	From time to time we enter into joint venture relationships in the ordinary course of business, pursuant to which we own and operate automotive dealerships together with other investors. We may also provide these dealerships with working capital and other debt financing at costs that are based on our incremental borrowing rate. As of December 31, 2013, our automotive joint venture relationships were as follows:
	Location	Dealerships	Ownership Interest
	Fairfield, Connecticut	Audi, Mercedes-Benz, Sprinter, Porsche, smart		83.57	%(A)(C)
	Greenwich, Connecticut	Mercedes-Benz		80	%(B)(C)
	Las Vegas, Nevada	Ferrari, Maserati		50	%(D)
	Frankfurt, Germany	Lexus, Toyota		50	%(D)
	Aachen, Germany	Audi, Lexus, Skoda, Toyota, Volkswagen, Citroën		50	%(D)
	Northern Italy	BMW, MINI		70	%(C)
	(A)
	An entity controlled by one of our directors, Lucio A. Noto (the "Investor"), owns a 16.43% interest in this joint venture which entitles the Investor to 20% of the joint venture's operating profits. In addition, the Investor has an option to purchase up to a total 20% interest in the joint venture for specified amounts.
	(B)
	An entity controlled by one of our directors, Lucio A. Noto (the "Investor"), owns a 20% interest in this joint venture which entitles the Investor to 20% of the joint venture's operating profits.
	(C)
	Entity is consolidated in our financial statements.
	(D)
	Entity is accounted for using the equity method of accounting.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2013
Stock-Based Compensation	'
Stock-Based Compensation	'
	13. Stock-Based Compensation
	Key employees, outside directors, consultants and advisors of PAG are eligible to receive stock-based compensation pursuant to the terms of our 2012 Equity Incentive Plan. This plan allows for the issuance of shares for stock options, stock appreciation rights, restricted stock, restricted stock units, performance shares and other awards. The plan is a three year plan which originally allowed for 2,000,000 awards of which, as of December 31, 2013, 1,510,463 shares of common stock were available for grant. Compensation expense related to these plans was $9.8 million, $6.8 million, and $6.0 million during the 2013, 2012, and 2011, respectively.
	Restricted Stock
	During 2013, 2012, and 2011, we granted 448,026, 431,339, and 392,283 shares, respectively, of restricted common stock at no cost to participants under the plan. The restricted stock provides the holder voting and forfeitable dividend rights prior to vesting. The shares are subject to forfeiture and are non-transferable, which restrictions generally lapse over a four year period from the grant date at a rate of 15%, 15%, 20% and 50% per year. We have determined that the grant date quoted market price of the underlying common stock is the appropriate measure of compensation cost. This cost is amortized as expense over the restriction period. As of December 31, 2013, there was $16.9 million of unrecognized compensation cost related to the restricted stock, which is expected to be recognized over the next four years.
	Presented below is a summary of the status of our restricted stock as of December 31, 2012 and 2013, and changes during the year ended December 31, 2013:
		Shares			Weighted Average		Aggregate
					Grant-Date Fair Value		Intrinsic Value
	December 31, 2012		979,022		$	15.28
	Granted		448,026			31.41
	Vested		(244,059	)		15.74
	Forfeited		(14,789	)		23.29
	December 31, 2013		1,168,200		$	23.75	$	55.1

Equity

Equity	12 Months Ended
	Dec. 31, 2013
Equity	'
Equity	'
	14. Equity
	During 2013, we acquired 410,000 shares of our outstanding common stock for $12.7 million, or an average of $30.93 per share, under our existing securities repurchase program. Also during 2013, we acquired 97,818 shares of our common stock for $3.1 million, or an average of $32.13 per share, from employees in connection with a net share settlement feature of employee equity awards. During 2012, we acquired 405,631 shares of our outstanding common stock for $9.8 million, or an average of $24.23 per share. During 2011, we acquired 2,449,768 shares of our outstanding common stock for $44.3 million, or an average of $18.07 per share. As of December 31, 2013, we have $85.6 million in authorization under the repurchase program.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income / (Loss)	12 Months Ended
	Dec. 31, 2013
Accumulated Other Comprehensive Income / (Loss)	'
Accumulated Other Comprehensive Income / (Loss)	'
	15. Accumulated Other Comprehensive Income / (Loss)
	Changes in accumulated other comprehensive income / (loss) by component and the reclassifications out of accumulated other comprehensive income / (loss) during the years ended December 31, 2013, 2012, and 2011 attributable to Penske Automotive Group common stockholders follows:
		Foreign			Interest Rate			Other			Accumulated
		Currency			Swaps						Other
		Translation									Comprehensive
											Income (Loss)
	Balance at January 1, 2011	$	(12.1	)	$	2.5		$	9.5		$	(0.1	)
	Other comprehensive income before reclassifications		(5.8	)		(9.7	)		(8.7	)		(24.2	)
	Amounts reclassified from accumulated other comprehensive income—net of tax provision of $0.0		—			0.1			—			0.1
	Net current-period other comprehensive income		(5.8	)		(9.6	)		(8.7	)		(24.1	)
	Balance at December 31, 2011		(17.9	)		(7.1	)		0.8			(24.2	)
	Other comprehensive income before reclassifications		18.3			(3.2	)		(1.9	)		13.2
	Amounts reclassified from accumulated other comprehensive income—net of tax provision of $2.8		—			4.2			—			4.2
	Net current-period other comprehensive income		18.3			1			(1.9	)		17.4
	Balance at December 31, 2012		0.4			(6.1	)		(1.1	)		(6.8	)
	Other comprehensive income before reclassifications		11.9			(0.4	)		3.4			14.9
	Amounts reclassified from accumulated other comprehensive income—net of tax provision(benefit) of ($0.5) and $2.9, respectively		(0.9	)		4.4			—			3.5
	Net current-period other comprehensive income		11			4			3.4			18.4
	Balance at December 31, 2013	$	11.4		$	(2.1	)	$	2.3		$	11.6
	Within the amounts reclassified from accumulated other comprehensive income, the amounts associated with interest rate swaps are included in floor plan interest expense, and the amounts associated with foreign currency translation are included in selling, general, and administrative expenses.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Taxes	'
Income Taxes	'
	16. Income Taxes
	Income taxes relating to income from continuing operations consisted of the following:
		Year Ended December 31,
		2013			2012			2011
	Current:
	Federal	$	7.8		$	(16.7	)	$	16
	State and local		5.1			1.2			3.7
	Foreign		33.8			26.5			4.9
	Total current		46.7			11			24.6
	Deferred:
	Federal		71.3			70.1			34.2
	State and local		9.5			11.8			0.9
	Foreign		(3.2	)		1.4			12.1
	Total deferred		77.6			83.3			47.2
	Income taxes relating to continuing operations	$	124.3		$	94.3		$	71.8
	Income taxes relating to income from continuing operations varied from the U.S. federal statutory income tax rate due to the following:
		Year Ended December 31,
		2013			2012			2011
	Income taxes relating to continuing operations at federal statutory rate of 35%	$	131.4		$	101.5		$	86.8
	State and local income taxes, net of federal taxes		8.6			7.1			1.9
	Foreign		(15.7	)		(12.2	)		(0.9	)
	Uncertain tax positions		(0.2	)		(1.4	)		(16.1	)
	Other		0.2			(0.7	)		0.1
	Income taxes relating to continuing operations	$	124.3		$	94.3		$	71.8
	In 2011, a settlement was reached with the U.K. tax authorities in relation to tax enquiries for the years 2004 to 2009 in relation to one of the U.K. companies, which represented approximately $16.0 million of the net uncertain tax position provision adjustment.
	The components of deferred tax assets and liabilities at December 31, 2013 and 2012 were as follows:
		2013			2012
	Deferred Tax Assets
	Accrued liabilities	$	61.8		$	51.2
	Net operating loss carryforwards		13.7			14.1
	Interest rate swap		3.1			5.7
	Other		12.4			3.4
	Total deferred tax assets		91			74.4
	Valuation allowance		(14.6	)		(14.6	)
	Net deferred tax assets		76.4			59.8
	Deferred Tax Liabilities
	Depreciation and amortization		(175.9	)		(136.5	)
	Partnership investments		(219.0	)		(178.6	)
	Convertible notes		(12.5	)		(12.5	)
	Other		(1.3	)		(0.5	)
	Total deferred tax liabilities		(408.7	)		(328.1	)
	Net deferred tax liabilities	$	(332.3	)	$	(268.3	)
	We do not provide for U.S. taxes relating to undistributed earnings or losses of our foreign subsidiaries. Income from continuing operations before income taxes of foreign subsidiaries (which subsidiaries are predominately in the U.K.) was $134.7 million, $117.0 million, and $98.4 million during 2013, 2012, and 2011, respectively. It is our belief that such earnings will be indefinitely reinvested in the companies that produced them. At December 31, 2013, we have not provided U.S. federal income taxes on a total temporary difference of $664.3 million related to the excess of financial reporting basis over tax basis in the foreign subsidiaries.
	At December 31, 2013, we have $160.3 million of state net operating loss carryforwards in the U.S. that expire at various dates beginning in 2014 through 2033, U.S. federal and state credit carryforwards of $2.4 million that will not expire, U.K. net operating loss carryforwards of $0.3 million that will not expire, U.K. capital loss carryforwards of $5.5 million that will not expire, German net operating loss carryforwards of $11.6 million that will not expire and Italian net operating loss carryforwards of $0.4 million that will not expire. We utilized $39.1 million of federal net operating loss carryforwards and $48.0 million of state net operating loss carryforwards in the U.S in 2013.
	A valuation allowance of $3.1 million has been recorded against the state net operating loss carryforwards in the U.S. and a valuation allowance of $29 thousand has been recorded against the state credit carryforwards in the U.S. A valuation allowance of $3.6 million has been recorded as of December 31, 2013 against German net operating losses A valuation allowance of $7.9 million has been recorded as of December 31, 2013 against U.K. deferred tax assets related to buildings.
	Generally accepted accounting principles relating to uncertain income tax positions prescribe a minimum recognition threshold a tax position is required to meet before being recognized, and provides guidance on the derecognition, measurement, classification, and disclosure relating to income taxes. The movement in uncertain tax positions for the years ended December 31, 2013, 2012, and 2011 were as follows:
		2013			2012			2011
	Uncertain tax positions—January 1	$	14.7		$	14.9		$	36.1
	Gross increase—tax position in prior periods		0.3			1.3			0.7
	Gross decrease—tax position in prior periods		(0.8	)		(0.8	)		(19.1	)
	Gross increase—current period tax position		0.1			—			—
	Settlements		(0.4	)		(0.9	)		(2.2	)
	Lapse in statute of limitations		(0.1	)		(0.3	)		(0.5	)
	Foreign exchange		0.2			0.5			(0.1	)
	Uncertain tax positions—December 31	$	14		$	14.7		$	14.9
	We have elected to include interest and penalties in our income tax expense. The total interest and penalties included within uncertain tax positions at December 31, 2013 was $2.7 million. We do not expect a significant change to the amount of uncertain tax positions within the next twelve months. Our U.S. federal returns remain open to examination for 2012 and various foreign and U.S. state jurisdictions are open for periods ranging from 2002 through 2012. The portion of the total amount of uncertain tax positions as of December 31, 2013 that would, if recognized, impact the effective tax rate was $14.0 million.
	We have classified our tax reserves as a long-term obligation on the basis that management does not expect to make payments relating to those reserves within the next twelve months.

Segment_Information

Segment Information	12 Months Ended
	Dec. 31, 2013
Segment Information	'
Segment Information	'
	17. Segment Information
	Our operations are organized by management into operating segments by line of business and geography. We have determined that we have two reportable segments as defined in generally accepted accounting principles for segment reporting: (i) Retail, consisting of our automotive retail operations, and (ii) Other, consisting of our commercial vehicle operating segment, our car rental business operating segment, and our investments in non-automotive retail operations. The Retail reportable segment includes all automotive dealerships and all departments relevant to the operation of the dealerships and the retail automotive joint ventures. The individual dealership operations included in the Retail reportable segment have been grouped into four geographic operating segments: Eastern, Central, and Western United States and International. The geographic operating segments have been aggregated into one reportable segment as their operations (A) have similar economic characteristics (all are automotive dealerships having similar margins), (B) offer similar products and services (all sell new and used vehicles, service, parts and third-party finance and insurance products), (C) have similar target markets and customers (generally individuals) and (D) have similar distribution and marketing practices (all distribute products and services through dealership facilities that market to customers in similar fashions). The accounting policies of the segments are the same and are described in Note 1.
	The following table summarizes revenues, floor plan interest expense, other interest expense, debt discount amortization, depreciation, equity in earnings of affiliates, and income (loss) from continuing operations before certain non-recurring items and income taxes, which is the measure by which management allocates resources to its segments and which we refer to as adjusted segment income (loss), for each of our reportable segments. Adjusted segment income excludes the items in the table below in order to enhance the comparability of segment income from period to period.
		Retail		Other			Intersegment			Total
							Elimination
	Revenues
	2013	$	14,532.20	$	205.5		$	(32.3	)	$	14,705.40
	2012		13,084.90		4			(4.6	)		13,084.30
	2011		11,039.40		—			—			11,039.40
	Floor plan interest expense
	2013	$	43	$	0.6		$	—		$	43.6
	2012		38.3		—			—			38.3
	2011		26.8		—			—			26.8
	Other interest expense
	2013	$	44.5	$	3.4		$	—		$	47.9
	2012		46.7		0.1			—			46.8
	2011		44.1		—			—			44.1
	Debt discount amortization
	2013	$	—	$	—		$	—		$	—
	2012		—		—			—			—
	2011		1.7		—			—			1.7
	Depreciation
	2013	$	60.4	$	1.3		$	—		$	61.7
	2012		53.5		—			—			53.5
	2011		46.4		—			—			46.4
	Equity in earnings of affiliates
	2013	$	4.9	$	25.8		$	—		$	30.7
	2012		3.3		24.3			—			27.6
	2011		2.1		23.3			—			25.4
	Adjusted segment income
	2013	$	341.1	$	34.6		$	(0.3	)	$	375.4
	2012		284.3		23.7			(0.1	)		307.9
	2011		224.7		23.3			—			248
	The following table reconciles total adjusted segment income to consolidated income from continuing operations before income taxes.
		Year Ended December 31,
		2013		2012			2011
	Adjusted segment income	$	375.4	$	307.9		$	248
	Debt redemption costs		—		(17.8	)		—
	Income (loss) from continuing operations before income taxes	$	375.4	$	290.1		$	248
	Total assets, equity method investments, and capital expenditures by reporting segment are as set forth in the table below.
		Retail		Other			Intersegment			Total
							Elimination
	Total assets
	2013	$	5,747.60	$	668.2		$	(0.3	)	$	6,415.50
	2012		5,101.30		277.8			(0.1	)		5,379.00
	Equity method investments
	2013	$	81.6	$	265.3		$	—		$	346.9
	2012		53.3		249.9			—			303.2
	Capital expenditures
	2013	$	169.9	$	86.4		$	—		$	256.3
	2012		152.3		9.9			—			162.2
	2011		131.7		—			—			131.7
	The following table presents certain data by geographic area:
		Year Ended December 31,
		2013		2012			2011
	Sales to external customers:
	U.S.	$	9,466.30	$	8,438.80		$	7,174.30
	Foreign		5,239.10		4,645.50			3,865.10
	Total sales to external customers	$	14,705.40	$	13,084.30		$	11,039.40
	Long-lived assets, net:
	U.S.	$	1,172.10	$	964.9
	Foreign		447.8		381.9
	Total long-lived assets	$	1,619.90	$	1,346.80
The Company's foreign operations are predominantly based in the U.K.

Summary_of_Quarterly_Financial

Summary of Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2013
Summary of Quarterly Financial Data (Unaudited)	'
Summary of Quarterly Financial Data (Unaudited)	'
	18. Summary of Quarterly Financial Data (Unaudited)
		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
	2013(1)(2)
	Total revenues	$	3,381.60	$	3,669.90	$	3,798.90	$	3,855.00
	Gross profit		531.5		565.1		576.8		586.4
	Net income		58		62.5		65.5		59.7
	Net income attributable to Penske Automotive Group common stockholders		57.7		62		65.3		59.2
	Diluted earnings per share attributable to Penske Automotive Group common stockholders	$	0.64	$	0.69	$	0.72	$	0.66
	2012(1)(2)
	Total revenues	$	3,136.10	$	3,286.70	$	3,310.70	$	3,350.80
	Gross profit		491.9		501.6		498.9		513.3
	Net income		47		49.6		41.3		49.3
	Net income attributable to Penske Automotive Group common stockholders		46.8		49.1		41		48.6
	Diluted earnings per share attributable to Penske Automotive Group common stockholders	$	0.52	$	0.54	$	0.45	$	0.54
	-1
	As discussed in Note 4, we have treated the operations of certain entities as discontinued operations. The results for all periods have been restated to reflect such treatment.
	-2
	Per share amounts are calculated independently for each of the quarters presented. The sum of the quarters may not equal the full year per share amounts due to rounding.

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information	12 Months Ended
	Dec. 31, 2013
Condensed Consolidating Financial Information	'
Condensed Consolidating Financial Information	'
	19. Condensed Consolidating Financial Information
	The following tables include condensed consolidating financial information as of December 31, 2013 and 2012 and for the years ended December 31, 2013, 2012, and 2011 for Penske Automotive Group, Inc. (as the issuer of the 5.75% Notes), guarantor subsidiaries and non-guarantor subsidiaries (primarily representing foreign entities). Guarantor subsidiaries are directly or indirectly 100% owned by PAG, and the guarantees are full and unconditional, and joint and several. The condensed consolidating financial information includes certain allocations of balance sheet, income statement and cash flow items which are not necessarily indicative of the financial position, results of operations and cash flows of these entities on a stand-alone basis.
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2013
		Total			Eliminations			Penske			Guarantor			Non-Guarantor
		Company						Automotive			Subsidiaries			Subsidiaries
								Group
	Cash and cash equivalents	$	49.8		$	—		$	—		$	12.6		$	37.2
	Accounts receivable, net		606.2			(392.5	)		392.5			387.5			218.7
	Inventories		2,538.30			—			—			1,436.10			1,102.20
	Other current assets		88.5			—			2.9			43.5			42.1
	Assets held for sale		63.8			—			—			15.6			48.2
	Total current assets		3,346.60			(392.5	)		395.4			1,895.30			1,448.40
	Property and equipment, net		1,241.00			—			4			808.8			428.2
	Intangible assets		1,449.00			—			—			782.7			666.3
	Equity method investments		346.9			—			295			—			51.9
	Other long-term assets		32			(1,686.0	)		1,697.40			5.3			15.3
	Total assets	$	6,415.50		$	(2,078.5	)	$	2,391.80		$	3,492.10		$	2,610.10
	Floor plan notes payable	$	1,704.40		$	—		$	—		$	1,028.70		$	675.7
	Floor plan notes payable—non-trade		903.2			—			128.2			447.3			327.7
	Accounts payable		374.7			—			3.4			143.2			228.1
	Accrued expenses		264			(392.5	)		0.1			123.6			532.8
	Current portion of long-term debt		50			—			—			39.5			10.5
	Liabilities held for sale		35.5			—			—			6.8			28.7
	Total current liabilities		3,331.80			(392.5	)		131.7			1,789.10			1,803.50
	Long-term debt		1,033.20			(123.5	)		738			158.3			260.4
	Deferred tax liabilities		361.4			—			—			337.6			23.8
	Other long-term liabilities		167			—			—			69.3			97.7
	Total liabilities		4,893.40			(516.0	)		869.7			2,354.30			2,185.40
	Total equity		1,522.10			(1,562.5	)		1,522.10			1,137.80			424.7
	Total liabilities and equity	$	6,415.50		$	(2,078.5	)	$	2,391.80		$	3,492.10		$	2,610.10
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2012
		Total			Eliminations			Penske			Guarantor			Non-Guarantor
		Company						Automotive			Subsidiaries			Subsidiaries
								Group
	Cash and cash equivalents	$	43.5		$	—		$	—		$	34.4		$	9.1
	Accounts receivable, net		550.9			(345.5	)		345.5			366.2			184.7
	Inventories		1,975.70			—			—			1,193.60			782.1
	Other current assets		90.4			—			3.5			55.8			31.1
	Assets held for sale		123.4			—			—			42.1			81.3
	Total current assets		2,783.90			(345.5	)		349			1,692.10			1,088.30
	Property and equipment, net		1,022.90			—			4.5			640.8			377.6
	Intangible assets		1,248.30			—			—			720.8			527.5
	Equity method investments		303.2			—			252.8			—			50.4
	Other long-term assets		20.7			(1,522.6	)		1,535.90			5			2.4
	Total assets	$	5,379.00		$	(1,868.1	)	$	2,142.20		$	3,058.70		$	2,046.20
	Floor plan notes payable	$	1,404.90		$	—		$	—		$	893.8		$	511.1
	Floor plan notes payable—non-trade		711.4			—			112.1			344.8			254.5
	Accounts payable		261.1			—			3.3			122.5			135.3
	Accrued expenses		222.6			(345.5	)		0.5			113.5			454.1
	Current portion of long-term debt		19.5			—			—			9.8			9.7
	Liabilities held for sale		75.6			—			—			21.8			53.8
	Total current liabilities		2,695.10			(345.5	)		115.9			1,506.20			1,418.50
	Long-term debt		917.1			(76.0	)		710			121.6			161.5
	Deferred tax liabilities		287.8			—			—			260.4			27.4
	Other long-term liabilities		162.7			—			—			85.1			77.6
	Total liabilities		4,062.70			(421.5	)		825.9			1,973.30			1,685.00
	Total equity		1,316.30			(1,446.6	)		1,316.30			1,085.40			361.2
	Total liabilities and equity	$	5,379.00		$	(1,868.1	)	$	2,142.20		$	3,058.70		$	2,046.20
	CONDENSED CONSOLIDATING STATEMENT OF INCOME
	Year Ended December 31, 2013
		Total			Eliminations			Penske			Guarantor			Non-Guarantor
Company		Automotive						Subsidiaries			Subsidiaries
		Group
Revenues	$	14,705.40		$	—		$	—		$	8,761.60		$	5,943.80
Cost of sales		12,445.60			—			—			7,348.40			5,097.20
Gross profit		2,259.80			—			—			1,413.20			846.6
Selling, general, and administrative expenses		1,761.90			—			21.4			1,077.40			663.1
Depreciation		61.7			—			1.8			35.8			24.1
Operating income (loss)		436.2			—			(23.2	)		300			159.4
Floor plan interest expense		(43.6	)		—			(9.6	)		(20.0	)		(14.0	)
Other interest expense		(47.9	)		—			(26.1	)		(4.5	)		(17.3	)
Equity in earnings of affiliates		30.7			—			25.5			—			5.2
Equity in earnings of subsidiaries		—			(407.3	)		407.3			—			—
Income from continuing operations before income taxes		375.4			(407.3	)		373.9			275.5			133.3
Income taxes		(124.3	)		135.4			(124.3	)		(100.8	)		(34.6	)
Income from continuing operations		251.1			(271.9	)		249.6			174.7			98.7
Loss from discontinued operations, net of tax		(5.4	)		5.4			(5.4	)		0.4			(5.8	)
Net income		245.7			(266.5	)		244.2			175.1			92.9
Other comprehensive income (loss), net of tax		18.9			(9.8	)		18.9			4			5.8
Comprehensive income		264.6			(276.3	)		263.1			179.1			98.7
Less: Comprehensive income attributable to the non-controlling interests		2			(0.5	)		0.5			—			2
Comprehensive income attributable to Penske Automotive Group common stockholders	$	262.6		$	(275.8	)	$	262.6		$	179.1		$	96.7
CONDENSED CONSOLIDATING STATEMENT OF INCOME
Year Ended December 31, 2012
	Total			Eliminations			Penske			Guarantor			Non-Guarantor
	Company						Automotive			Subsidiaries			Subsidiaries
							Group
Revenues	$	13,084.30		$	—		$	—		$	7,783.60		$	5,300.70
Cost of sales		11,078.60			—			—			6,551.90			4,526.70
Gross profit		2,005.70			—			—			1,231.70			774
Selling, general, and administrative expenses		1,586.80			—			19.4			954.8			612.6
Depreciation		53.5			—			1.3			29.2			23
Operating income (loss)		365.4			—			(20.7	)		247.7			138.4
Floor plan interest expense		(38.3	)		—			(8.6	)		(16.7	)		(13.0	)
Other interest expense		(46.8	)		—			(29.5	)		(0.6	)		(16.7	)
Equity in earnings of affiliates		27.6			—			24			—			3.6
Debt redemption costs		(17.8	)		—			(17.8	)		—			—
Equity in earnings of subsidiaries		—			(341.1	)		341.1			—			—
Income from continuing operations before income taxes		290.1			(341.1	)		288.5			230.4			112.3
Income taxes		(94.3	)		111.6			(94.3	)		(87.3	)		(24.3	)
Income from continuing operations		195.8			(229.5	)		194.2			143.1			88
Loss from discontinued operations, net of tax		(8.6	)		8.6			(8.6	)		—			(8.6	)
Net income		187.2			(220.9	)		185.6			143.1			79.4
Other comprehensive income (loss), net of tax		17.6			(16.6	)		17.6			1			15.6
Comprehensive income		204.8			(237.5	)		203.2			144.1			95
Less: Comprehensive income attributable to non-controlling interests		1.9			(0.3	)		0.3			—			1.9
Comprehensive income attributable to Penske Automotive Group common stockholders	$	202.9		$	(237.2	)	$	202.9		$	144.1		$	93.1
CONDENSED CONSOLIDATING STATEMENT OF INCOME
Year Ended December 31, 2011
	Total			Eliminations			Penske			Guarantor			Non-Guarantor
	Company						Automotive			Subsidiaries			Subsidiaries
							Group
Revenues	$	11,039.40		$	—		$	—		$	6,609.30		$	4,430.10
Cost of sales		9,287.30			—			—			5,507.80			3,779.50
Gross profit		1,752.10			—			—			1,101.50			650.6
Selling, general, and administrative expenses		1,410.50			—			19			879.2			512.3
Depreciation		46.4			—			1.3			25.7			19.4
Operating income (loss)		295.2			—			(20.3	)		196.6			118.9
Floor plan interest expense		(26.8	)		—			(1.4	)		(13.8	)		(11.6	)
Other interest expense		(44.1	)		—			(25.4	)		(1.0	)		(17.7	)
Debt discount amortization		(1.7	)		—			(1.7	)		—			—
Equity in earnings of affiliates		25.4			—			23			—			2.4
Equity in earnings of subsidiaries		—			(272.4	)		272.4			—			—
Income from continuing operations before income taxes		248			(272.4	)		246.6			181.8			92
Income taxes		(71.8	)		79.3			(71.8	)		(53.0	)		(26.3	)
Income from continuing operations		176.2			(193.1	)		174.8			128.8			65.7
Loss from discontinued operations, net of tax		2.1			(2.0	)		2.1			3.1			(1.1	)
Net income		178.3			(195.1	)		176.9			131.9			64.6
Other comprehensive income (loss), net of tax		(24.1	)		21.2			(24.1	)		(9.6	)		(11.6	)
Comprehensive income		154.2			(173.9	)		152.8			122.3			53
Less: Comprehensive income attributable to the non-controlling interests		1.4			—			—			—			1.4
Comprehensive income attributable to Penske Automotive Group common stockholders	$	152.8		$	(173.9	)	$	152.8		$	122.3		$	51.6
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
Year Ended December 31, 2013
	Total			Penske			Guarantor			Non-Guarantor
	Company			Automotive			Subsidiaries			Subsidiaries
				Group
Net cash from (used in) continuing operating activities	$	314.8		$	46.6		$	31.4		$	236.8
Investing activities:
Purchase of property and equipment		(169.9	)		(1.4	)		(111.7	)		(56.8	)
Purchase of car rental vehicles		(86.4	)		—			(86.4	)		—
Acquisitions, net		(338.1	)		—			(127.5	)		(210.6	)
Other		6.8			(17.5	)		20			4.3
Net cash from (used in) continuing investing activities		(587.6	)		(18.9	)		(305.6	)		(263.1	)
Financing activities:
Net borrowings (repayments) of long-term debt		144.8			28			66.4			50.4
Net (repayments) borrowings of floor plan notes payable—non-trade		191.8			16.1			181.8			(6.1	)
Repurchase of common stock		(15.8	)		(15.8	)		—			—
Dividends		(56.0	)		(56.0	)		—			—
Distributions from (to) parent		—			—			0.9			(0.9	)
Other		0.2			—			—			0.2
Net cash from (used in) continuing financing activities		265			(27.7	)		249.1			43.6
Net cash from discontinued operations		14.1			—			3.3			10.8
Net change in cash and cash equivalents		6.3			—			(21.8	)		28.1
Cash and cash equivalents, beginning of period		43.5			—			34.4			9.1
Cash and cash equivalents, end of period	$	49.8		$	—		$	12.6		$	37.2
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
Year Ended December 31, 2012
	Total			Penske			Guarantor			Non-Guarantor
	Company			Automotive			Subsidiaries			Subsidiaries
				Group
Net cash from (used in) continuing operating activities	$	324.6		$	45.5		$	126.9		$	152.2
Investing activities:
Purchase of equipment and improvements		(152.3	)		(1.1	)		(101.7	)		(49.5	)
Purchase of car rental vehicles		(9.9	)		—			(9.9	)		—
Proceeds from sale-leaseback transactions		1.6			—			—			1.6
Acquisitions, net		(250.2	)		—			(115.8	)		(134.4	)
Other		8.8			(3.3	)		4.8			7.3
Net cash from (used in) continuing investing activities		(402.0	)		(4.4	)		(222.6	)		(175.0	)
Financing activities:
Repurchase of 3.5% senior subordinated convertible notes		(62.7	)		(62.7	)		—			—
Issuance of 5.75% senior subordinated notes		550			550			—			—
Repurchase of 7.75% senior subordinated notes		(390.8	)		(390.8	)		—			—
Net borrowings (repayments) of long-term debt		(28.5	)		(98.9	)		50.9			19.5
Net borrowings (repayments) of floor plan notes payable—non-trade		71.6			21.2			42.7			7.7
Repurchases of common stock		(9.8	)		(9.8	)		—			—
Dividends		(41.5	)		(41.5	)		—			—
Payment of deferred financing fees		(8.6	)		(8.6	)		—			—
Other		(1.1	)		—			—			(1.1	)
Distributions from (to) parent		—			—			5.2			(5.2	)
Net cash from (used in) continuing financing activities		78.6			(41.1	)		98.8			20.9
Net cash from (used in) discontinued operations		15.5			—			5.5			10
Net change in cash and cash equivalents		16.7			—			8.6			8.1
Cash and cash equivalents, beginning of period		26.8			—			25.8			1
Cash and cash equivalents, end of period	$	43.5		$	—		$	34.4		$	9.1
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
Year Ended December 31, 2011
	Total			Penske			Guarantor			Non-Guarantor
	Company			Automotive			Subsidiaries			Subsidiaries
				Group
Net cash from (used in) continuing operating activities	$	136.8		$	(39.4	)	$	188.6		$	(12.4	)
Investing activities:
Purchase of equipment and improvements		(131.7	)		(1.3	)		(76.1	)		(54.3	)
Acquisitions, net		(232.1	)		—			(194.3	)		(37.8	)
Other		2.9			—			—			2.9
Net cash from (used in) continuing investing activities		(360.9	)		(1.3	)		(270.4	)		(89.2	)
Financing activities:
Repurchase of 3.5% senior subordinated convertible notes		(87.3	)		(87.3	)		—			—
Net borrowings (repayments) of long-term debt		155.2			125			18.4			11.8
Net borrowings (repayments) of floor plan notes payable—non-trade		197			65.9			34.9			96.2
Proceeds from exercises of options, including excess tax benefit		3.4			3.4			—			—
Repurchases of common stock		(44.3	)		(44.3	)		—			—
Dividends		(22.0	)		(22.0	)		—			—
Distributions from (to) parent		—			—			6.1			(6.1	)
Net cash from (used in) continuing financing activities		202			40.7			59.4			101.9
Net cash from discontinued operations		31			—			32.6			(1.6	)
Net change in cash and cash equivalents		8.9			—			10.2			(1.3	)
Cash and cash equivalents, beginning of period		17.9			—			15.6			2.3
Cash and cash equivalents, end of period	$	26.8		$	—		$	25.8		$	1

Schedule_II_VALUATION_AND_QUAL

Schedule II VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Dec. 31, 2013
Schedule II VALUATION AND QUALIFYING ACCOUNTS	'
Schedule II VALUATION AND QUALIFYING ACCOUNTS	'
	Schedule II
	PENSKE AUTOMOTIVE GROUP, INC.
	VALUATION AND QUALIFYING ACCOUNTS
	Description	Balance at		Additions		Deductions,			Balance
		Beginning				Recoveries, & Other			at End
		of Year							of Year
	Year Ended December 31, 2013
	Allowance for doubtful accounts	$	2.9	$	1	$	(0.5	)	$	3.4
	Tax valuation allowance		14.6		1.6		(1.6	)		14.6
	Year Ended December 31, 2012
	Allowance for doubtful accounts	$	2	$	0.9	$	—		$	2.9
	Tax valuation allowance		11.8		3		(0.2	)		14.6
	Year Ended December 31, 2011
	Allowance for doubtful accounts	$	1.8	$	1	$	(0.8	)	$	2
	Tax valuation allowance		7.3		8.8		(4.3	)		11.8

Organization_and_Summary_of_Si1

Organization and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Organization and Summary of Significant Accounting Policies	'
Business Overview and Concentrations	'
	Business Overview and Concentrations
	We are an international transportation services company, operating retail automotive dealerships, commercial vehicle distribution and car rental franchises.
	Automotive Dealership.    We are the second largest automotive retailer headquartered in the U.S. as measured by the $14.7 billion in total revenue we generated in 2013. As of December 31, 2013, we operated 324 automotive retail franchises, of which 176 franchises are located in the U.S. and 148 franchises are located outside of the U.S. The franchises outside the U.S. are located primarily in the U.K.
	We are engaged in the sale of new and used motor vehicles and related products and services, including vehicle service, collision repair, and placement of finance and lease contracts, third-party insurance products and other aftermarket products. We operate dealerships under franchise agreements with a number of automotive manufacturers and distributors. In accordance with individual franchise agreements, each dealership is subject to certain rights and restrictions typical of the industry. The ability of the manufacturers to influence the operations of the dealerships, or the loss of a significant number of franchise agreements, could have a material impact on our results of operations, financial position and cash flows.
	For the year ended December 31, 2013, BMW/MINI franchises accounted for 25% of our total automotive dealership revenues, Audi/Volkswagen/Porsche/Bentley franchises accounted for 21%, Toyota/Lexus/Scion franchises accounted for 15%, Honda/Acura franchises accounted for 12%, and Mercedes-Benz/Sprinter/smart accounted for 11%. No other manufacturers' franchises accounted for more than 10% of our total automotive dealership revenues. At December 31, 2013 and 2012, we had receivables from manufacturers of $145.3 million and $125.0 million, respectively. In addition, a large portion of our contracts in transit, which are included in accounts receivable, are due from manufacturers' captive finance subsidiaries.
	During the year ended December 31, 2013, we acquired nine franchises. We were also awarded one franchise. We disposed of 30 franchises representing ten different brands, principally consisting of ten Toyota/Lexus and fifteen Chrysler/Jeep/Dodge franchises in the U.K.
	Commercial Vehicle.    On August 30, 2013, we completed the acquisition of Western Star Trucks Australia, the exclusive importer and distributor of Western Star heavy duty trucks (a Daimler brand), MAN heavy and medium duty trucks and buses (a VW Group brand), and Dennis Eagle refuse collection vehicles, together with associated parts across Australia, New Zealand and portions of Southeast Asia. The business also includes three retail commercial vehicle dealerships. From our acquisition of this business on August 30, 2013 through December 31, 2013, this business generated $152.5 million of revenue through the distribution and retail sale of vehicles and parts to a network of more than 70 dealership locations.
	Car Rental.    We are the Hertz car rental franchisee in the Memphis, Tennessee market and certain Indiana markets. We currently manage more than fifty on- and off-airport Hertz car rental locations. Our car rental business generated $52.6 million of revenue during the year ended December 31, 2013 and complements our existing U.S. automotive dealership operations.
	Penske Truck Leasing.    We hold a 9.0% limited partnership interest in Penske Truck Leasing Co., L.P. ("PTL"), a leading provider of transportation services and supply chain management.
Basis of Presentation	'
	Basis of Presentation
	Results for 2012 include $17.8 million of pre-tax costs associated with the repurchase and redemption of our previously outstanding $375.0 million of 7.75% senior subordinated notes. Results for 2011 include an $11.0 million net income tax benefit. The components of the net benefit include (a) a $17.0 million positive adjustment primarily from the release of amounts previously recorded in the U.K. as uncertain tax positions as such positions were accepted by the U.K. tax authorities and (b) a negative adjustment relating to a valuation allowance against certain U.K. deferred tax assets of $6.0 million as evidence supporting the future realizability of such assets was no longer available.
	The consolidated financial statements include all majority-owned subsidiaries. Investments in affiliated companies, representing an ownership interest in the voting stock of the affiliate of between 20% and 50% or an investment in a limited partnership or a limited liability corporation for which our investment is more than minor, are stated at the cost of acquisition plus our equity in undistributed net earnings since acquisition. All intercompany accounts and transactions have been eliminated in consolidation. We evaluated subsequent events through March 3, 2014, the date the consolidated financial statements were filed with the SEC.
	The consolidated financial statements, including the comparative periods presented, have been adjusted for entities that have been treated as discontinued operations through December 31, 2013 in accordance with generally accepted accounting principles.
Estimates	'
	Estimates
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The accounts requiring the use of significant estimates include accounts receivable, inventories, income taxes, intangible assets and certain reserves.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	Cash and cash equivalents include all highly-liquid investments that have an original maturity of three months or less at the date of purchase.
Contracts in Transit	'
	Contracts in Transit
	Contracts in transit represent receivables from unaffiliated finance companies relating to the sale of customers' installment sales and lease contracts arising in connection with the sale of a vehicle by us. Contracts in transit, included in accounts receivable, net in our consolidated balance sheets, amounted to $255.9 million and $236.2 million as of December 31, 2013 and 2012, respectively.
Inventory Valuation	'
	Inventory Valuation
	Inventories are stated at the lower of cost or market. Cost for new and used vehicle inventories includes acquisition, reconditioning, dealer installed accessories, and transportation expenses and is determined using the specific identification method. Inventories of automotive dealership parts and accessories are accounted for using the "first-in, first-out" ("FIFO") method of inventory accounting and the cost is based on factory list prices.
Property and Equipment	'
	Property and Equipment
	Property and equipment are recorded at cost and depreciated over estimated useful lives using the straight-line method. Useful lives for purposes of computing depreciation for assets, other than leasehold improvements, range between 3 and 15 years. Car rental fleet vehicles are depreciated to estimated fair market value over a period between 12 and 24 months, which is the average length of time a vehicle remains in our car rental fleet. Leasehold improvements and equipment under capital lease are depreciated over the shorter of the term of the lease or the estimated useful life of the asset, not to exceed 40 years.
	Expenditures relating to recurring repair and maintenance are expensed as incurred. Expenditures that increase the useful life or substantially increase the serviceability of an existing asset are capitalized. When equipment is sold or otherwise disposed of, the cost and related accumulated depreciation are removed from the balance sheet, with any resulting gain or loss being reflected in income.
Income Taxes	'
	Income Taxes
	Tax regulations may require items to be included in our tax return at different times than those items are reflected in our financial statements. Some of the differences are permanent, such as expenses that are not deductible on our tax return, and some are temporary differences, such as the timing of depreciation expense. Temporary differences create deferred tax assets and liabilities. Deferred tax assets generally represent items that will be used as a tax deduction or credit in our tax return in future years which we have already recorded in our financial statements. Deferred tax liabilities generally represent deductions taken on our tax return that have not yet been recognized as an expense in our financial statements. We establish valuation allowances for our deferred tax assets if the amount of expected future taxable income is not more likely than not to allow for the use of the deduction or credit.
Intangible Assets	'
	Intangible Assets
	Our principal intangible assets relate to our franchise agreements with vehicle manufacturers and distributors, which represent the estimated value of franchises acquired in business combinations, and goodwill, which represents the excess of cost over the fair value of tangible and identified intangible assets acquired in business combinations. We believe the franchise values of our automotive dealerships have an indefinite useful life based on the following:
	•
	Automotive retailing is a mature industry and is based on franchise agreements with the vehicle manufacturers and distributors;
	•
	There are no known changes or events that would alter the automotive retailing franchise environment;
	•
	Certain franchise agreement terms are indefinite;
	•
	Franchise agreements that have limited terms have historically been renewed by us without substantial cost; and
	•
	Our history shows that manufacturers and distributors have not terminated our franchise agreements.
	We also believe the franchise values of our car rental market areas have an indefinite useful life because car rental is a mature industry for which the franchise environment is relatively static. Also, we do not anticipate difficulty renewing our long-term franchise agreements.
Impairment Testing	'
	Impairment Testing
	Franchise value impairment is assessed during the fourth quarter every year and upon the occurrence of an indicator of impairment through a comparison of its carrying amount and estimated fair value. An indicator of impairment exists if the carrying value of a franchise exceeds its estimated fair value and an impairment loss may be recognized up to that excess. The fair value of franchise value is determined using a discounted cash flow approach, which includes assumptions about revenue and profitability growth, franchise profit margins, and the cost of capital. We also evaluate our franchise agreements in connection with the annual impairment testing to determine whether events and circumstances continue to support our assessment that the franchise agreements have an indefinite life.
	Goodwill impairment is assessed at the reporting unit level during the fourth quarter every year and upon the occurrence of an indicator of impairment. Our operations are organized by management into operating segments by line of business and geography. We have determined that we have two reportable segments as defined in generally accepted accounting principles for segment reporting: (i) Retail, consisting of our automotive retail operations, and (ii) Other, consisting of our commercial vehicle operating segment, our car rental business operating segment, and our investments in non-automotive retail operations. We have determined that the dealerships in each of our operating segments within the Retail reportable segment are components that are aggregated into four geographical reporting units for the purpose of goodwill impairment testing, as they (A) have similar economic characteristics (all are automotive dealerships having similar margins), (B) offer similar products and services (all sell new and used vehicles, service, parts and third-party finance and insurance products), (C) have similar target markets and customers (generally individuals) and (D) have similar distribution and marketing practices (all distribute products and services through dealership facilities that market to customers in similar fashions). The geographic reporting units are Eastern, Central, and Western United States and International. The goodwill included in our Other reportable segment relates to our commercial vehicle operating segment and our car rental business operating segment. The car rental business operating segment has been identified as its own reporting unit. Our commercial vehicle operating segment has two geographic reporting units.
	For our retail operations reporting unit, we prepare a qualitative assessment of the carrying value of goodwill using the criteria in ASC 350-20-35-3 to determine whether it is more likely than not that a reporting unit's fair value is less than its carrying value. If it were determined through the qualitative assessment that a reporting unit's fair value is more likely than not greater than its carrying value, additional analysis would be unnecessary. During 2013, we concluded that it was not more likely than not that any of the retail operations reporting units' fair values were less than their carrying amount. If the additional impairment testing was necessary, we would have estimated the fair value of our reporting units using an "income" valuation approach. The "income" valuation approach estimates our enterprise value using a net present value model, which discounts projected free cash flows of our business using the weighted average cost of capital as the discount rate. In connection with this process, we also reconcile the estimated aggregate fair values of our reporting units to our market capitalization. We believe that this reconciliation process is consistent with a market participant perspective. This consideration would also include a control premium that represents the estimated amount an investor would pay for our equity securities to obtain a controlling interest and other significant assumptions including revenue and profitability growth, franchise profit margins, residual values and the cost of capital.
	For our car rental business reporting unit, we performed our initial impairment test by comparing the estimated fair value of the reporting unit with its carrying value. We estimated the fair value of our reporting unit using an "income" valuation approach. We concluded that the fair value of the reporting unit exceeded its carrying value.
Investments	'
	Investments
	We account for each of our investments under the equity method, pursuant to which we record our proportionate share of the investee's income each period. The net book value of our investments was $346.9 million and $303.2 million as of December 31, 2013 and 2012, respectively. Investments for which there is not a liquid, actively traded market are reviewed periodically by management for indicators of impairment. If an indicator of impairment is identified, management estimates the fair value of the investment using a discounted cash flow approach, which includes assumptions relating to revenue and profitability growth, profit margins, residual values and the cost of capital. Declines in investment values that are deemed to be other than temporary may result in an impairment charge reducing the investments' carrying value to fair value.
Foreign Currency Translation	'
	Foreign Currency Translation
	For all of our foreign operations, the functional currency is the local currency. The revenue and expense accounts of our foreign operations are translated into U.S. dollars using the average exchange rates that prevailed during the period. Assets and liabilities of foreign operations are translated into U.S. dollars using period end exchange rates. Cumulative translation adjustments relating to foreign functional currency assets and liabilities are recorded in accumulated other comprehensive income (loss), a separate component of equity.
Fair Value of Financial Instruments	'
	Fair Value of Financial Instruments
	Accounting standards define fair value as the price that would be received from selling an asset or paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. Accounting standards establish a fair value hierarchy which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value and also establishes the following three levels of inputs that may be used to measure fair value:
	Level 1	Quoted prices in active markets for identical assets or liabilities
	Level 2	Observable inputs other than Level 1 prices such as quoted prices for similar assets or liabilities; quoted market prices in markets that are not active; or model-derived valuations or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities
	Level 3	Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities
	Our financial instruments consist of cash and cash equivalents, debt, floor plan notes payable, forward exchange contracts and interest rate swaps used to hedge future cash flows. Other than our fixed rate debt, the carrying amount of all significant financial instruments approximates fair value due either to length of maturity, the existence of variable interest rates that approximate prevailing market rates, or as a result of mark to market accounting.
	Our fixed rate debt consists of amounts outstanding under our senior subordinated notes and mortgage facilities. We estimate the fair value of our senior unsecured notes using quoted prices for the identical liability (Level 2), and we estimate the fair value of our mortgage facilities using a present value technique based on our current market interest rates for similar types of financial instruments (Level 2). A summary of the carrying values and fair values of our 5.75% senior subordinated notes and our fixed rate mortgage facilities are as follows:
		December 31, 2013				December 31, 2012
		Carrying Value		Fair Value		Carrying Value		Fair Value
	5.75% senior subordinated notes due 2022	$	550	$	565.1	$	550	$	563.8
	Mortgage facilities		118.6		117		104		105.5
Revenue Recognition	'
	Revenue Recognition
	Vehicle, Parts and Service Sales
	We record revenue when vehicles are delivered and title has passed to the customer, when vehicle service or repair work is completed and when parts are delivered to our customers. Sales promotions that we offer to customers are accounted for as a reduction of revenues at the time of sale. Rebates and other incentives offered directly to us by manufacturers are recognized as a reduction of cost of sales. Reimbursements of qualified advertising expenses are treated as a reduction of selling, general and administrative expenses. The amounts received under certain manufacturer rebate and incentive programs are based on the attainment of program objectives, and such earnings are recognized either upon the sale of the vehicle for which the award was received, or upon attainment of the particular program goals if not associated with individual vehicles. Taxes collected from customers and remitted to governmental authorities are recorded on a net basis (excluded from revenue).
	Finance and Insurance Sales
	Subsequent to the sale of a vehicle to a customer, we sell installment sale contracts to various financial institutions on a non-recourse basis (with specified exceptions) to mitigate the risk of default. We receive a commission from the lender equal to either the difference between the interest rate charged to the customer and the interest rate set by the financing institution or a flat fee. We also receive commissions for facilitating the sale of various products to customers, including guaranteed auto protection insurance, vehicle theft protection and extended service contracts. These commissions are recorded as revenue at the time the customer enters into the contract. In the case of finance contracts, a customer may prepay or fail to pay their contract, thereby terminating the contract. Customers may also terminate extended service contracts and other insurance products, which are fully paid at purchase, and become eligible for refunds of unused premiums. In these circumstances, a portion of the commissions we received may be charged back based on the terms of the contracts. The revenue we record relating to these transactions is net of an estimate of the amount of chargebacks we will be required to pay. Our estimate is based upon our historical experience with similar contracts, including the impact of refinance and default rates on retail finance contracts and cancellation rates on extended service contracts and other insurance products. Aggregate reserves relating to chargeback activity were $23.3 million and $23.4 million as of December 31, 2013 and 2012, respectively.
	Commercial Vehicle Revenue
	Revenue from the distribution of goods is recognized at the time of delivery of goods to the retailer.
	Car Rental Revenue
	Rental and rental related revenues are recognized over the period the vehicles and accessories are rented based on the terms of the rental contract. Taxes collected from customers and remitted to the governmental authorities are recorded on a net basis (excluded from revenue).
Defined Contribution Plans	'
	Defined Contribution Plans
	We sponsor a number of defined contribution plans covering a significant majority of our employees. Our contributions to such plans are discretionary and are based on the level of compensation and contributions by plan participants. We incurred expense of $15.1 million, $13.7 million, and $11.8 million relating to such plans during the years ended December 31, 2013, 2012, and 2011, respectively.
Advertising	'
	Advertising
	Advertising costs are expensed as incurred or when such advertising takes place. We incurred net advertising costs of $82.9 million, $81.4 million, and $68.7 million during the years ended December 31, 2013, 2012, and 2011, respectively. Qualified advertising expenditures reimbursed by manufacturers, which are treated as a reduction of advertising expense, were $13.1 million, $12.1 million, and $10.5 million during the years ended December 31, 2013, 2012, and 2011, respectively.
Self Insurance	'
	Self Insurance
	We retain risk relating to certain of our general liability insurance, workers' compensation insurance, auto physical damage insurance, property insurance, employment practices liability insurance, directors and officers insurance, and employee medical benefits in the U.S. As a result, we are likely to be responsible for a significant portion of the claims and losses incurred under these programs. The amount of risk we retain varies by program, and, for certain exposures, we have pre-determined maximum loss limits for certain individual claims and/or insurance periods. Losses, if any, above such pre-determined loss limits are paid by third-party insurance carriers. Certain insurers have limited available property coverage in response to the natural catastrophes experienced in recent years. Our estimate of future losses is prepared by management using our historical loss experience and industry-based development factors. Aggregate reserves relating to retained risk were $21.1 million and $20.1 million as of December 31, 2013 and 2012, respectively. Changes in the reserve estimate during 2013 relate primarily to our general liability and workers compensation programs.
Earnings Per Share	'
	Earnings Per Share
	Basic earnings per share is computed using net income attributable to Penske Automotive Group common stockholders and the number of weighted average shares of voting common stock outstanding, including outstanding unvested restricted stock awards which contain rights to non-forfeitable dividends. Diluted earnings per share is computed using net income attributable to Penske Automotive Group common stockholders and the number of weighted average shares of voting common stock outstanding, adjusted for the dilutive effect of stock options. A reconciliation of the number of shares used in the calculation of basic and diluted earnings per share for the years ended December 31, 2013, 2012, and 2011 follows:
		Year Ended December 31,
		2013		2012		2011
	Weighted average number of common shares outstanding		90,273,747		90,318,315		91,153,620
	Effect of non-participatory equity compensation		56,874		24,000		120,512
	Weighted average number of common shares outstanding, including effect of dilutive securities		90,330,621		90,342,315		91,274,132
Hedging	'
	Hedging
	Generally accepted accounting principles relating to derivative instruments and hedging activities require all derivatives, whether designated in hedging relationships or not, to be recorded on the balance sheet at fair value. These accounting principles also define requirements for designation and documentation of hedging relationships, as well as ongoing effectiveness assessments, which must be met in order to qualify for hedge accounting. For a derivative that does not qualify as a hedge, changes in fair value are recorded in earnings immediately. If the derivative is designated in a fair-value hedge, the changes in the fair value of the derivative and the hedged item are recorded in earnings. If the derivative is designated as a cash-flow hedge, effective changes in the fair value of the derivative are recorded in accumulated other comprehensive income (loss), a separate component of equity, and recorded in the income statement only when the hedged item affects earnings. Changes in the fair value of the derivative attributable to hedge ineffectiveness are recorded in earnings immediately.
Stock-Based Compensation	'
	Stock-Based Compensation
	Generally accepted accounting principles relating to share-based payments require us to record compensation expense for all awards based on their grant-date fair value. Our share-based payments have generally been in the form of "non-vested shares," the fair value of which are measured as if they were vested and issued on the grant date.
New Accounting Pronouncements	'
	New Accounting Pronouncements
	In February 2013, the Financial Accounting Standards Board ("FASB") issued ASU No. 2013-02, "Comprehensive Income (Topic 220)—Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income." ASU No. 2013-02 requires disclosure of amounts reclassified out of accumulated other comprehensive income by component. In addition, we are required to present either on the face of the statement of income or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required to be reclassified to net income in its entirety in the same reporting period. For amounts not reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional detail about those amounts. We complied with the disclosure requirements of this ASU as shown in Note 15.
	In March 2013, the FASB issued ASU No. 2013-05, "Foreign Currency Matters (Topic 830)—Parent's Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity." ASU No. 2013-05 resolves the diversity in practice about whether Subtopic 810-10, Consolidation—Overall, or Subtopic 830-30, Foreign Currency Matters—Translation of Financial Statements, applies to the release of the cumulative translation adjustment into net income when a parent either sells a part or all of its investment in a foreign entity or no longer holds a controlling financial interest in a subsidiary or group of assets that is a business within a foreign entity. This ASU is effective prospectively for the first annual period beginning after December 15, 2013. We do not expect adoption of ASU No. 2013-05 to affect our consolidated financial position, results of operations, or cash flows.
	In July 2013, the FASB issued ASU No. 2013-10, "Derivatives and Hedging (Topic 815)—Inclusion of the Fed Funds Effective Swap Rate (or Overnight Index Swap Rate) as a Benchmark Interest Rate for Hedge Accounting Purposes." The amendments in ASU No. 2013-10 permit the Fed Funds Effective Swap Rate to be used as a U.S. benchmark interest rate for hedge accounting purposes under Topic 815, in addition to UST and LIBOR. This ASU is effective prospectively for qualifying new or redesignated hedging relationships entered into on or after July 17, 2013. We do not expect the adoption of ASU No. 2013-10 to affect our consolidated financial position, results of operations, or cash flows.
	In July 2013, the FASB issued ASU No. 2013-11, "Income Taxes (Topic 740)—Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists." ASU No. 2013-11 resolves the diversity in practice regarding the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. This ASU is effective for the first annual period beginning after December 15, 2013. We do not expect adoption of ASU No. 2013-11 to affect our consolidated financial position, results of operations, or cash flows.

Organization_and_Summary_of_Si2

Organization and Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Organization and Summary of Significant Accounting Policies	'
Summary of carrying values and fair values of senior subordinated notes and fixed rate mortgage facilities	'
		December 31, 2013				December 31, 2012
		Carrying Value		Fair Value		Carrying Value		Fair Value
	5.75% senior subordinated notes due 2022	$	550	$	565.1	$	550	$	563.8
	Mortgage facilities		118.6		117		104		105.5
Reconciliation of number of shares used in calculation of basic and diluted earning per share	'
		Year Ended December 31,
		2013		2012		2011
	Weighted average number of common shares outstanding		90,273,747		90,318,315		91,153,620
	Effect of non-participatory equity compensation		56,874		24,000		120,512
	Weighted average number of common shares outstanding, including effect of dilutive securities		90,330,621		90,342,315		91,274,132

Equity_Method_Investees_Table

Equity Method Investees (Table)	12 Months Ended
	Dec. 31, 2013
Equity Method Investees	'
Equity method investment statement of operation and financial position	'
	Condensed income statement information:
		Year Ended December 31,
		2013		2012		2011
	Revenues	$	6,177.00	$	6,043.40	$	5,970.60
	Gross margin		2,043.50		1,897.30		1,802.30
	Net income		304		284.2		255.1
	Equity in net income of affiliates		30.7		27.6		25.4
	Condensed balance sheet information:
		December 31,
		2013		2012
	Current assets	$	1,194.20	$	1,129.70
	Noncurrent assets		8,377.80		8,139.10
	Total assets	$	9,572.00	$	9,268.80
	Current liabilities	$	888.8	$	866.2
	Noncurrent liabilities		6,517.50		6,475.50
	Equity		2,165.70		1,927.10
	Total liabilities and equity	$	9,572.00	$	9,268.80

Business_Combinations_Tables

Business Combinations (Tables)	12 Months Ended
	Dec. 31, 2013
Business Combinations	'
Summary of the aggregate consideration paid and the aggregate amounts of the assets acquired and liabilities assumed	'
		December 31,
		2013			2012
	Accounts receivable	$	20.1		$	28.9
	Inventory		161.6			123.7
	Other current assets		2.7			0.6
	Property and equipment		34.1			64.2
	Indefinite-lived intangibles		191.4			115.1
	Other non-current assets		9			0.7
	Current liabilities		(79.5	)		(59.7	)
	Non-current liabilities		(1.3	)		(23.3	)
	Total cash used in acquisitions		338.1			250.2
Summary of unaudited consolidated pro forma results of operations	'
		Year Ended December 31,
		2013			2012
	Revenues	$	15,277.70		$	14,153.40
	Income from continuing operations		267.5			225
	Net income		260.5			214.8
	Income from continuing operations per diluted common share	$	2.94		$	2.47
	Net income per diluted common share	$	2.88		$	2.38

Discontinued_Operations_Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2013
Discontinued Operations	'
Combined financial information regarding entities accounted for as discontinued operations	'
		Year Ended December 31,
		2013			2012			2011
	Revenues	$	263.2		$	508.8		$	830.1
	Pre-tax income (loss)		(7.4	)		(17.5	)		0.3
	Gain (loss) on disposal		0.8			8.1			3.3
		2013			2012
	Inventory	$	35.8		$	69.2
	Other assets		28			54.2
	Total assets		63.8			123.4
	Floor plan notes payable (including non-trade)		22.7			54.3
	Other liabilities		12.8			21.3
	Total liabilities		35.5			75.6

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Dec. 31, 2013
Inventories	'
Inventories Net	'
		December 31,
		2013		2012
	New vehicles	$	1,725.70	$	1,410.50
	Used vehicles		588.5		479.7
	Commercial vehicles		126.9		—
	Parts, accessories and other		97.2		85.5
	Total inventories	$	2,538.30	$	1,975.70

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property and Equipment	'
Schedule of components of property and equipment	'
		December 31,
		2013			2012
	Buildings and leasehold improvements	$	1,096.70		$	941
	Furniture, fixtures and equipment		574.5			428.5
	Total		1,671.20			1,369.50
	Less: Accumulated depreciation		(430.2	)		(346.6	)
	Property and equipment, net	$	1,241.00		$	1,022.90

Intangible_Assets_Tables

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Intangible Assets	'
Summary of the changes in the carrying amount of goodwill and franchise value	'
		Goodwill			Franchise
					Value
	Balance—December 31, 2011	$	894.3		$	219.3
	Additions		61.7			53.4
	Foreign currency translation		15.7			3.9
	Balance—December 31, 2012		971.7			276.6
	Additions		169.3			22.1
	Deconsolidation of Italian investment		(7.2	)		(2.9	)
	Reconsolidation of Italian investment		7.4			3.1
	Foreign currency translation		7.5			1.4
	Balance—December 31, 2013	$	1,148.70		$	300.3
Summary of the changes in the carrying amount of goodwill by reportable segment	'
		Retail			Other			Total
	Balance—December 31, 2011	$	894.3		$	—		$	894.3
	Additions		57.8			3.9			61.7
	Foreign currency translation		15.7			—			15.7
	Balance—December 31, 2012		967.8			3.9			971.7
	Additions		49.6			119.7			169.3
	Deconsolidation of Italian investment		(7.2	)		—			(7.2	)
	Reconsolidation of Italian investment		7.4			—			7.4
	Foreign currency translation		9			(1.5	)		7.5
	Balance—December 31, 2013	$	1,026.60		$	122.1		$	1,148.70

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Long-Term Debt	'
Long Term Debt	'
		December 31,
		2013			2012
	U.S. credit agreement—revolving credit line	$	90		$	50
	U.S. credit agreement—term loan		98			110
	U.K. credit agreement—revolving credit line		106			48.7
	U.K. credit agreement—term loan		29.8			39
	U.K. credit agreement—overdraft line of credit		—			6.8
	5.75% senior subordinated notes due 2022		550			550
	Car rental revolver		86.9			23.2
	Working capital loan agreement		—			—
	Mortgage facilities		118.6			104
	Other		3.9			4.8
	Total long-term debt	$	1,083.20		$	936.6
	Less: current portion		(50.0	)		(19.5	)
	Net long-term debt	$	1,033.20		$	917.1
Scheduled maturities of long-term debt for each of the next five years and thereafter	'
	2014	$	50
	2015		186.7
	2016		194.9
	2017		46.6
	2018		2.9
	2019 and thereafter		602.1
	Total long-term debt reported	$	1,083.20

Commitments_and_Contingent_Lia1

Commitments and Contingent Liabilities (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingent Liabilities	'
Minimum future rental payments required under operating leases	'
	Minimum future rental payments required under operating leases in effect as of December 31, 2013 are as follows:
	2014	$	193.6
	2015		194.7
	2016		193.5
	2017		193.3
	2018		191.9
	2019 and thereafter		3,972.20
		$	4,939.20

Related_Party_Transactions_Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2013
Related Party Transactions	'
Schedule of automotive joint venture relationships	'
	Location	Dealerships	Ownership Interest
	Fairfield, Connecticut	Audi, Mercedes-Benz, Sprinter, Porsche, smart		83.57	%(A)(C)
	Greenwich, Connecticut	Mercedes-Benz		80	%(B)(C)
	Las Vegas, Nevada	Ferrari, Maserati		50	%(D)
	Frankfurt, Germany	Lexus, Toyota		50	%(D)
	Aachen, Germany	Audi, Lexus, Skoda, Toyota, Volkswagen, Citroën		50	%(D)
	Northern Italy	BMW, MINI		70	%(C)
	(A)
	An entity controlled by one of our directors, Lucio A. Noto (the "Investor"), owns a 16.43% interest in this joint venture which entitles the Investor to 20% of the joint venture's operating profits. In addition, the Investor has an option to purchase up to a total 20% interest in the joint venture for specified amounts.
	(B)
	An entity controlled by one of our directors, Lucio A. Noto (the "Investor"), owns a 20% interest in this joint venture which entitles the Investor to 20% of the joint venture's operating profits.
	(C)
	Entity is consolidated in our financial statements.
	(D)
	Entity is accounted for using the equity method of accounting.

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Stock-Based Compensation	'
Summary of the Company's restricted stock activity	'
		Shares			Weighted Average		Aggregate
					Grant-Date Fair Value		Intrinsic Value
	December 31, 2012		979,022		$	15.28
	Granted		448,026			31.41
	Vested		(244,059	)		15.74
	Forfeited		(14,789	)		23.29
	December 31, 2013		1,168,200		$	23.75	$	55.1

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income / (Loss) (Tables)	12 Months Ended
	Dec. 31, 2013
Accumulated Other Comprehensive Income / (Loss)	'
Schedule of the changes in accumulated other comprehensive income/ (loss) by component and the reclassifications out of accumulated other comprehensive income/ (loss) attributable to the entity's common stockholders	'
		Foreign			Interest Rate			Other			Accumulated
		Currency			Swaps						Other
		Translation									Comprehensive
											Income (Loss)
	Balance at January 1, 2011	$	(12.1	)	$	2.5		$	9.5		$	(0.1	)
	Other comprehensive income before reclassifications		(5.8	)		(9.7	)		(8.7	)		(24.2	)
	Amounts reclassified from accumulated other comprehensive income—net of tax provision of $0.0		—			0.1			—			0.1
	Net current-period other comprehensive income		(5.8	)		(9.6	)		(8.7	)		(24.1	)
	Balance at December 31, 2011		(17.9	)		(7.1	)		0.8			(24.2	)
	Other comprehensive income before reclassifications		18.3			(3.2	)		(1.9	)		13.2
	Amounts reclassified from accumulated other comprehensive income—net of tax provision of $2.8		—			4.2			—			4.2
	Net current-period other comprehensive income		18.3			1			(1.9	)		17.4
	Balance at December 31, 2012		0.4			(6.1	)		(1.1	)		(6.8	)
	Other comprehensive income before reclassifications		11.9			(0.4	)		3.4			14.9
	Amounts reclassified from accumulated other comprehensive income—net of tax provision(benefit) of ($0.5) and $2.9, respectively		(0.9	)		4.4			—			3.5
	Net current-period other comprehensive income		11			4			3.4			18.4
	Balance at December 31, 2013	$	11.4		$	(2.1	)	$	2.3		$	11.6

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Taxes	'
Schedule of income taxes relating to income from continuing operations	'
		Year Ended December 31,
		2013			2012			2011
	Current:
	Federal	$	7.8		$	(16.7	)	$	16
	State and local		5.1			1.2			3.7
	Foreign		33.8			26.5			4.9
	Total current		46.7			11			24.6
	Deferred:
	Federal		71.3			70.1			34.2
	State and local		9.5			11.8			0.9
	Foreign		(3.2	)		1.4			12.1
	Total deferred		77.6			83.3			47.2
	Income taxes relating to continuing operations	$	124.3		$	94.3		$	71.8
Schedule of reconciliation of income taxes from continuing operations at federal statutory rate	'
		Year Ended December 31,
		2013			2012			2011
	Income taxes relating to continuing operations at federal statutory rate of 35%	$	131.4		$	101.5		$	86.8
	State and local income taxes, net of federal taxes		8.6			7.1			1.9
	Foreign		(15.7	)		(12.2	)		(0.9	)
	Uncertain tax positions		(0.2	)		(1.4	)		(16.1	)
	Other		0.2			(0.7	)		0.1
	Income taxes relating to continuing operations	$	124.3		$	94.3		$	71.8
Schedule of components of deferred tax assets and liabilities	'
		2013			2012
	Deferred Tax Assets
	Accrued liabilities	$	61.8		$	51.2
	Net operating loss carryforwards		13.7			14.1
	Interest rate swap		3.1			5.7
	Other		12.4			3.4
	Total deferred tax assets		91			74.4
	Valuation allowance		(14.6	)		(14.6	)
	Net deferred tax assets		76.4			59.8
	Deferred Tax Liabilities
	Depreciation and amortization		(175.9	)		(136.5	)
	Partnership investments		(219.0	)		(178.6	)
	Convertible notes		(12.5	)		(12.5	)
	Other		(1.3	)		(0.5	)
	Total deferred tax liabilities		(408.7	)		(328.1	)
	Net deferred tax liabilities	$	(332.3	)	$	(268.3	)
Schedule of movement in uncertain tax positions	'
		2013			2012			2011
	Uncertain tax positions—January 1	$	14.7		$	14.9		$	36.1
	Gross increase—tax position in prior periods		0.3			1.3			0.7
	Gross decrease—tax position in prior periods		(0.8	)		(0.8	)		(19.1	)
	Gross increase—current period tax position		0.1			—			—
	Settlements		(0.4	)		(0.9	)		(2.2	)
	Lapse in statute of limitations		(0.1	)		(0.3	)		(0.5	)
	Foreign exchange		0.2			0.5			(0.1	)
	Uncertain tax positions—December 31	$	14		$	14.7		$	14.9

Segment_Information_Tables

Segment Information (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Information	'
Revenues and adjusted segment income by reportable segment	'
		Retail		Other			Intersegment			Total
							Elimination
	Revenues
	2013	$	14,532.20	$	205.5		$	(32.3	)	$	14,705.40
	2012		13,084.90		4			(4.6	)		13,084.30
	2011		11,039.40		—			—			11,039.40
	Floor plan interest expense
	2013	$	43	$	0.6		$	—		$	43.6
	2012		38.3		—			—			38.3
	2011		26.8		—			—			26.8
	Other interest expense
	2013	$	44.5	$	3.4		$	—		$	47.9
	2012		46.7		0.1			—			46.8
	2011		44.1		—			—			44.1
	Debt discount amortization
	2013	$	—	$	—		$	—		$	—
	2012		—		—			—			—
	2011		1.7		—			—			1.7
	Depreciation
	2013	$	60.4	$	1.3		$	—		$	61.7
	2012		53.5		—			—			53.5
	2011		46.4		—			—			46.4
	Equity in earnings of affiliates
	2013	$	4.9	$	25.8		$	—		$	30.7
	2012		3.3		24.3			—			27.6
	2011		2.1		23.3			—			25.4
	Adjusted segment income
	2013	$	341.1	$	34.6		$	(0.3	)	$	375.4
	2012		284.3		23.7			(0.1	)		307.9
	2011		224.7		23.3			—			248
Schedule of total adjusted segment income to consolidated income from continuing operations before income taxes reconciliation	'
		Year Ended December 31,
		2013		2012			2011
	Adjusted segment income	$	375.4	$	307.9		$	248
	Debt redemption costs		—		(17.8	)		—
	Income (loss) from continuing operations before income taxes	$	375.4	$	290.1		$	248
Total assets, equity method investments, and capital expenditures by reporting segment	'
		Retail		Other			Intersegment			Total
							Elimination
	Total assets
	2013	$	5,747.60	$	668.2		$	(0.3	)	$	6,415.50
	2012		5,101.30		277.8			(0.1	)		5,379.00
	Equity method investments
	2013	$	81.6	$	265.3		$	—		$	346.9
	2012		53.3		249.9			—			303.2
	Capital expenditures
	2013	$	169.9	$	86.4		$	—		$	256.3
	2012		152.3		9.9			—			162.2
	2011		131.7		—			—			131.7
Schedule of revenue and long-lived assets by geographic area	'
		Year Ended December 31,
		2013		2012			2011
	Sales to external customers:
	U.S.	$	9,466.30	$	8,438.80		$	7,174.30
	Foreign		5,239.10		4,645.50			3,865.10
	Total sales to external customers	$	14,705.40	$	13,084.30		$	11,039.40
	Long-lived assets, net:
	U.S.	$	1,172.10	$	964.9
	Foreign		447.8		381.9
	Total long-lived assets	$	1,619.90	$	1,346.80

Summary_of_Quarterly_Financial1

Summary of Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Summary of Quarterly Financial Data (Unaudited)	'
Summary of Quarterly Financial Data (Unaudited)	'
		First		Second		Third		Fourth
		Quarter		Quarter		Quarter		Quarter
	2013(1)(2)
	Total revenues	$	3,381.60	$	3,669.90	$	3,798.90	$	3,855.00
	Gross profit		531.5		565.1		576.8		586.4
	Net income		58		62.5		65.5		59.7
	Net income attributable to Penske Automotive Group common stockholders		57.7		62		65.3		59.2
	Diluted earnings per share attributable to Penske Automotive Group common stockholders	$	0.64	$	0.69	$	0.72	$	0.66
	2012(1)(2)
	Total revenues	$	3,136.10	$	3,286.70	$	3,310.70	$	3,350.80
	Gross profit		491.9		501.6		498.9		513.3
	Net income		47		49.6		41.3		49.3
	Net income attributable to Penske Automotive Group common stockholders		46.8		49.1		41		48.6
	Diluted earnings per share attributable to Penske Automotive Group common stockholders	$	0.52	$	0.54	$	0.45	$	0.54
	-1
	As discussed in Note 4, we have treated the operations of certain entities as discontinued operations. The results for all periods have been restated to reflect such treatment.
	-2
	Per share amounts are calculated independently for each of the quarters presented. The sum of the quarters may not equal the full year per share amounts due to rounding.

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Consolidating Financial Information	'
CONDENSED CONSOLIDATING BALANCE SHEET	'
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2013
		Total			Eliminations			Penske			Guarantor			Non-Guarantor
		Company						Automotive			Subsidiaries			Subsidiaries
								Group
	Cash and cash equivalents	$	49.8		$	—		$	—		$	12.6		$	37.2
	Accounts receivable, net		606.2			(392.5	)		392.5			387.5			218.7
	Inventories		2,538.30			—			—			1,436.10			1,102.20
	Other current assets		88.5			—			2.9			43.5			42.1
	Assets held for sale		63.8			—			—			15.6			48.2
	Total current assets		3,346.60			(392.5	)		395.4			1,895.30			1,448.40
	Property and equipment, net		1,241.00			—			4			808.8			428.2
	Intangible assets		1,449.00			—			—			782.7			666.3
	Equity method investments		346.9			—			295			—			51.9
	Other long-term assets		32			(1,686.0	)		1,697.40			5.3			15.3
	Total assets	$	6,415.50		$	(2,078.5	)	$	2,391.80		$	3,492.10		$	2,610.10
	Floor plan notes payable	$	1,704.40		$	—		$	—		$	1,028.70		$	675.7
	Floor plan notes payable—non-trade		903.2			—			128.2			447.3			327.7
	Accounts payable		374.7			—			3.4			143.2			228.1
	Accrued expenses		264			(392.5	)		0.1			123.6			532.8
	Current portion of long-term debt		50			—			—			39.5			10.5
	Liabilities held for sale		35.5			—			—			6.8			28.7
	Total current liabilities		3,331.80			(392.5	)		131.7			1,789.10			1,803.50
	Long-term debt		1,033.20			(123.5	)		738			158.3			260.4
	Deferred tax liabilities		361.4			—			—			337.6			23.8
	Other long-term liabilities		167			—			—			69.3			97.7
	Total liabilities		4,893.40			(516.0	)		869.7			2,354.30			2,185.40
	Total equity		1,522.10			(1,562.5	)		1,522.10			1,137.80			424.7
	Total liabilities and equity	$	6,415.50		$	(2,078.5	)	$	2,391.80		$	3,492.10		$	2,610.10
	CONDENSED CONSOLIDATING BALANCE SHEET
	December 31, 2012
		Total			Eliminations			Penske			Guarantor			Non-Guarantor
		Company						Automotive			Subsidiaries			Subsidiaries
								Group
	Cash and cash equivalents	$	43.5		$	—		$	—		$	34.4		$	9.1
	Accounts receivable, net		550.9			(345.5	)		345.5			366.2			184.7
	Inventories		1,975.70			—			—			1,193.60			782.1
	Other current assets		90.4			—			3.5			55.8			31.1
	Assets held for sale		123.4			—			—			42.1			81.3
	Total current assets		2,783.90			(345.5	)		349			1,692.10			1,088.30
	Property and equipment, net		1,022.90			—			4.5			640.8			377.6
	Intangible assets		1,248.30			—			—			720.8			527.5
	Equity method investments		303.2			—			252.8			—			50.4
	Other long-term assets		20.7			(1,522.6	)		1,535.90			5			2.4
	Total assets	$	5,379.00		$	(1,868.1	)	$	2,142.20		$	3,058.70		$	2,046.20
	Floor plan notes payable	$	1,404.90		$	—		$	—		$	893.8		$	511.1
	Floor plan notes payable—non-trade		711.4			—			112.1			344.8			254.5
	Accounts payable		261.1			—			3.3			122.5			135.3
	Accrued expenses		222.6			(345.5	)		0.5			113.5			454.1
	Current portion of long-term debt		19.5			—			—			9.8			9.7
	Liabilities held for sale		75.6			—			—			21.8			53.8
	Total current liabilities		2,695.10			(345.5	)		115.9			1,506.20			1,418.50
	Long-term debt		917.1			(76.0	)		710			121.6			161.5
	Deferred tax liabilities		287.8			—			—			260.4			27.4
	Other long-term liabilities		162.7			—			—			85.1			77.6
	Total liabilities		4,062.70			(421.5	)		825.9			1,973.30			1,685.00
	Total equity		1,316.30			(1,446.6	)		1,316.30			1,085.40			361.2
	Total liabilities and equity	$	5,379.00		$	(1,868.1	)	$	2,142.20		$	3,058.70		$	2,046.20
CONDENSED CONSOLIDATING STATEMENT OF INCOME	'
	CONDENSED CONSOLIDATING STATEMENT OF INCOME
	Year Ended December 31, 2013
		Total			Eliminations			Penske			Guarantor			Non-Guarantor
		Company						Automotive			Subsidiaries			Subsidiaries
								Group
	Revenues	$	14,705.40		$	—		$	—		$	8,761.60		$	5,943.80
	Cost of sales		12,445.60			—			—			7,348.40			5,097.20
	Gross profit		2,259.80			—			—			1,413.20			846.6
	Selling, general, and administrative expenses		1,761.90			—			21.4			1,077.40			663.1
	Depreciation		61.7			—			1.8			35.8			24.1
	Operating income (loss)		436.2			—			(23.2	)		300			159.4
	Floor plan interest expense		(43.6	)		—			(9.6	)		(20.0	)		(14.0	)
	Other interest expense		(47.9	)		—			(26.1	)		(4.5	)		(17.3	)
	Equity in earnings of affiliates		30.7			—			25.5			—			5.2
	Equity in earnings of subsidiaries		—			(407.3	)		407.3			—			—
	Income from continuing operations before income taxes		375.4			(407.3	)		373.9			275.5			133.3
	Income taxes		(124.3	)		135.4			(124.3	)		(100.8	)		(34.6	)
	Income from continuing operations		251.1			(271.9	)		249.6			174.7			98.7
	Loss from discontinued operations, net of tax		(5.4	)		5.4			(5.4	)		0.4			(5.8	)
	Net income		245.7			(266.5	)		244.2			175.1			92.9
	Other comprehensive income (loss), net of tax		18.9			(9.8	)		18.9			4			5.8
	Comprehensive income		264.6			(276.3	)		263.1			179.1			98.7
	Less: Comprehensive income attributable to the non-controlling interests		2			(0.5	)		0.5			—			2
	Comprehensive income attributable to Penske Automotive Group common stockholders	$	262.6		$	(275.8	)	$	262.6		$	179.1		$	96.7
	CONDENSED CONSOLIDATING STATEMENT OF INCOME
	Year Ended December 31, 2012
		Total			Eliminations			Penske			Guarantor			Non-Guarantor
		Company						Automotive			Subsidiaries			Subsidiaries
								Group
	Revenues	$	13,084.30		$	—		$	—		$	7,783.60		$	5,300.70
	Cost of sales		11,078.60			—			—			6,551.90			4,526.70
	Gross profit		2,005.70			—			—			1,231.70			774
	Selling, general, and administrative expenses		1,586.80			—			19.4			954.8			612.6
	Depreciation		53.5			—			1.3			29.2			23
	Operating income (loss)		365.4			—			(20.7	)		247.7			138.4
	Floor plan interest expense		(38.3	)		—			(8.6	)		(16.7	)		(13.0	)
	Other interest expense		(46.8	)		—			(29.5	)		(0.6	)		(16.7	)
	Equity in earnings of affiliates		27.6			—			24			—			3.6
	Debt redemption costs		(17.8	)		—			(17.8	)		—			—
	Equity in earnings of subsidiaries		—			(341.1	)		341.1			—			—
	Income from continuing operations before income taxes		290.1			(341.1	)		288.5			230.4			112.3
	Income taxes		(94.3	)		111.6			(94.3	)		(87.3	)		(24.3	)
	Income from continuing operations		195.8			(229.5	)		194.2			143.1			88
	Loss from discontinued operations, net of tax		(8.6	)		8.6			(8.6	)		—			(8.6	)
	Net income		187.2			(220.9	)		185.6			143.1			79.4
	Other comprehensive income (loss), net of tax		17.6			(16.6	)		17.6			1			15.6
	Comprehensive income		204.8			(237.5	)		203.2			144.1			95
	Less: Comprehensive income attributable to non-controlling interests		1.9			(0.3	)		0.3			—			1.9
	Comprehensive income attributable to Penske Automotive Group common stockholders	$	202.9		$	(237.2	)	$	202.9		$	144.1		$	93.1
	CONDENSED CONSOLIDATING STATEMENT OF INCOME
	Year Ended December 31, 2011
		Total			Eliminations			Penske			Guarantor			Non-Guarantor
		Company						Automotive			Subsidiaries			Subsidiaries
								Group
	Revenues	$	11,039.40		$	—		$	—		$	6,609.30		$	4,430.10
	Cost of sales		9,287.30			—			—			5,507.80			3,779.50
	Gross profit		1,752.10			—			—			1,101.50			650.6
	Selling, general, and administrative expenses		1,410.50			—			19			879.2			512.3
	Depreciation		46.4			—			1.3			25.7			19.4
	Operating income (loss)		295.2			—			(20.3	)		196.6			118.9
	Floor plan interest expense		(26.8	)		—			(1.4	)		(13.8	)		(11.6	)
	Other interest expense		(44.1	)		—			(25.4	)		(1.0	)		(17.7	)
	Debt discount amortization		(1.7	)		—			(1.7	)		—			—
Equity in earnings of affiliates		25.4			—			23			—			2.4
Equity in earnings of subsidiaries		—			(272.4	)		272.4			—			—
Income from continuing operations before income taxes		248			(272.4	)		246.6			181.8			92
Income taxes		(71.8	)		79.3			(71.8	)		(53.0	)		(26.3	)
Income from continuing operations		176.2			(193.1	)		174.8			128.8			65.7
Loss from discontinued operations, net of tax		2.1			(2.0	)		2.1			3.1			(1.1	)
Net income		178.3			(195.1	)		176.9			131.9			64.6
Other comprehensive income (loss), net of tax		(24.1	)		21.2			(24.1	)		(9.6	)		(11.6	)
Comprehensive income		154.2			(173.9	)		152.8			122.3			53
Less: Comprehensive income attributable to the non-controlling interests		1.4			—			—			—			1.4
Comprehensive income attributable to Penske Automotive Group common stockholders	$	152.8		$	(173.9	)	$	152.8		$	122.3		$	51.6
CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS	'
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	Year Ended December 31, 2013
		Total			Penske			Guarantor			Non-Guarantor
		Company			Automotive			Subsidiaries			Subsidiaries
					Group
	Net cash from (used in) continuing operating activities	$	314.8		$	46.6		$	31.4		$	236.8
	Investing activities:
	Purchase of property and equipment		(169.9	)		(1.4	)		(111.7	)		(56.8	)
	Purchase of car rental vehicles		(86.4	)		—			(86.4	)		—
	Acquisitions, net		(338.1	)		—			(127.5	)		(210.6	)
	Other		6.8			(17.5	)		20			4.3
	Net cash from (used in) continuing investing activities		(587.6	)		(18.9	)		(305.6	)		(263.1	)
	Financing activities:
	Net borrowings (repayments) of long-term debt		144.8			28			66.4			50.4
	Net (repayments) borrowings of floor plan notes payable—non-trade		191.8			16.1			181.8			(6.1	)
	Repurchase of common stock		(15.8	)		(15.8	)		—			—
	Dividends		(56.0	)		(56.0	)		—			—
	Distributions from (to) parent		—			—			0.9			(0.9	)
	Other		0.2			—			—			0.2
	Net cash from (used in) continuing financing activities		265			(27.7	)		249.1			43.6
	Net cash from discontinued operations		14.1			—			3.3			10.8
	Net change in cash and cash equivalents		6.3			—			(21.8	)		28.1
	Cash and cash equivalents, beginning of period		43.5			—			34.4			9.1
	Cash and cash equivalents, end of period	$	49.8		$	—		$	12.6		$	37.2
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	Year Ended December 31, 2012
		Total			Penske			Guarantor			Non-Guarantor
		Company			Automotive			Subsidiaries			Subsidiaries
					Group
	Net cash from (used in) continuing operating activities	$	324.6		$	45.5		$	126.9		$	152.2
	Investing activities:
	Purchase of equipment and improvements		(152.3	)		(1.1	)		(101.7	)		(49.5	)
	Purchase of car rental vehicles		(9.9	)		—			(9.9	)		—
	Proceeds from sale-leaseback transactions		1.6			—			—			1.6
	Acquisitions, net		(250.2	)		—			(115.8	)		(134.4	)
	Other		8.8			(3.3	)		4.8			7.3
	Net cash from (used in) continuing investing activities		(402.0	)		(4.4	)		(222.6	)		(175.0	)
	Financing activities:
	Repurchase of 3.5% senior subordinated convertible notes		(62.7	)		(62.7	)		—			—
	Issuance of 5.75% senior subordinated notes		550			550			—			—
	Repurchase of 7.75% senior subordinated notes		(390.8	)		(390.8	)		—			—
	Net borrowings (repayments) of long-term debt		(28.5	)		(98.9	)		50.9			19.5
	Net borrowings (repayments) of floor plan notes payable—non-trade		71.6			21.2			42.7			7.7
	Repurchases of common stock		(9.8	)		(9.8	)		—			—
	Dividends		(41.5	)		(41.5	)		—			—
	Payment of deferred financing fees		(8.6	)		(8.6	)		—			—
	Other		(1.1	)		—			—			(1.1	)
	Distributions from (to) parent		—			—			5.2			(5.2	)
	Net cash from (used in) continuing financing activities		78.6			(41.1	)		98.8			20.9
	Net cash from (used in) discontinued operations		15.5			—			5.5			10
	Net change in cash and cash equivalents		16.7			—			8.6			8.1
	Cash and cash equivalents, beginning of period		26.8			—			25.8			1
	Cash and cash equivalents, end of period	$	43.5		$	—		$	34.4		$	9.1
	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS
	Year Ended December 31, 2011
		Total			Penske			Guarantor			Non-Guarantor
		Company			Automotive			Subsidiaries			Subsidiaries
					Group
	Net cash from (used in) continuing operating activities	$	136.8		$	(39.4	)	$	188.6		$	(12.4	)
	Investing activities:
	Purchase of equipment and improvements		(131.7	)		(1.3	)		(76.1	)		(54.3	)
	Acquisitions, net		(232.1	)		—			(194.3	)		(37.8	)
	Other		2.9			—			—			2.9
Net cash from (used in) continuing investing activities		(360.9	)		(1.3	)		(270.4	)		(89.2	)
Financing activities:
Repurchase of 3.5% senior subordinated convertible notes		(87.3	)		(87.3	)		—			—
Net borrowings (repayments) of long-term debt		155.2			125			18.4			11.8
Net borrowings (repayments) of floor plan notes payable—non-trade		197			65.9			34.9			96.2
Proceeds from exercises of options, including excess tax benefit		3.4			3.4			—			—
Repurchases of common stock		(44.3	)		(44.3	)		—			—
Dividends		(22.0	)		(22.0	)		—			—
Distributions from (to) parent		—			—			6.1			(6.1	)
Net cash from (used in) continuing financing activities		202			40.7			59.4			101.9
Net cash from discontinued operations		31			—			32.6			(1.6	)
Net change in cash and cash equivalents		8.9			—			10.2			(1.3	)
Cash and cash equivalents, beginning of period		17.9			—			15.6			2.3
Cash and cash equivalents, end of period	$	26.8		$	—		$	25.8		$	1

Organization_and_Summary_of_Si3

Organization and Summary of Significant Accounting Policies (Details) (USD $)

3 Months Ended

4 Months Ended

12 Months Ended

1 Months Ended

4 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Aug. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

item

item

item

Penske Commercial Vehicles

Penske Commercial Vehicles

Hertz car rental franchise

Penske Truck Leasing Co., L.P.

BMW/MINI

Audi/Volkswagen/Porsche/Bentley

Toyota/Lexus

Honda/Acura

Mercedes-Benz/Sprinter/smart

Chrysler/Jeep/Dodge

item

item

item

item

Organization and Summary of Significant Accounting Policies

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total revenues

$3,855

$3,798.90

$3,669.90

$3,381.60

$3,350.80

$3,310.70

$3,286.70

$3,136.10

'

$14,705.40

$13,084.30

$11,039.40

'

$152.50

$52.60

'

'

'

'

'

'

'

Total number of owned and operated franchises

324

'

'

'

'

'

'

'

324

324

'

'

'

'

'

'

'

'

'

'

'

'

Number of owned and operated franchises in US

176

'

'

'

'

'

'

'

176

176

'

'

'

'

'

'

'

'

'

'

'

'

Number of owned and operated franchises outside US

148

'

'

'

'

'

'

'

148

148

'

'

'

'

'

'

'

'

'

'

'

'

Receivables from manufacturers

145.3

'

'

'

125

'

'

'

145.3

145.3

125

'

'

'

'

'

'

'

'

'

'

'

Significant Accounting Policies

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of total revenues

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25.00%

21.00%

15.00%

12.00%

11.00%

'

Number of acquired franchises

'

'

'

'

'

'

'

'

'

9

'

'

'

'

1

'

'

'

'

'

'

'

Number of franchises awarded to the reporting entity

'

'

'

'

'

'

'

'

'

1

'

'

'

'

'

'

'

'

'

'

'

'

Number of franchises disposed of

'

'

'

'

'

'

'

'

'

30

'

'

'

'

'

'

'

'

'

'

'

'

Number of different brands represented by franchises awarded to the reporting entity

'

'

'

'

'

'

'

'

'

10

'

'

'

'

'

'

'

'

10

'

'

15

Revenue

$3,855

$3,798.90

$3,669.90

$3,381.60

$3,350.80

$3,310.70

$3,286.70

$3,136.10

'

$14,705.40

$13,084.30

$11,039.40

'

$152.50

$52.60

'

'

'

'

'

'

'

Number of commercial vehicle dealership

'

'

'

'

'

'

'

'

'

'

'

'

3

'

'

'

'

'

'

'

'

'

Minimum number of dealership locations

'

'

'

'

'

'

'

'

70

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum number of on and off-airport locations in which company operates

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50

'

'

'

'

'

'

'

Limited partnership interest (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9.00%

'

'

'

'

'

'

Organization_and_Summary_of_Si4

Organization and Summary of Significant Accounting Policies (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	item
Significant Accounting Policies	'	'	'
Net income tax benefit	($124.30)	($94.30)	($71.80)
Negative adjustment to valuation allowance against certain U.K. deferred tax assets	-3.2	1.4	12.1
Contracts in Transit	'	'	'
Contracts in transit, included in accounts receivable	255.9	236.2	'
Impairment Testing	'	'	'
Number of reportable Segments	2	'	'
Number of geographical reporting units for the purpose of goodwill impairment testing	4	'	'
Number of geographic reporting units	2	'	'
Investments	'	'	'
Net book value of investments	346.9	303.2	'
Fair Value of Financial Instruments	'	'	'
Debt instrument, Carrying Value	1,083.20	936.6	'
Minimum	'	'	'
Significant Accounting Policies	'	'	'
Ownership interest in the voting stock of the affiliate (as a percent)	20.00%	'	'
Minimum | Property and equipment other than leasehold improvements	'	'	'
Property and Equipment	'	'	'
Useful life of property and equipment	'3 years	'	'
Minimum | Car rental fleet vehicles	'	'	'
Property and Equipment	'	'	'
Useful life of property and equipment	'12 months	'	'
Maximum	'	'	'
Significant Accounting Policies	'	'	'
Ownership interest in the voting stock of the affiliate (as a percent)	50.00%	'	'
Maximum | Property and equipment other than leasehold improvements	'	'	'
Property and Equipment	'	'	'
Useful life of property and equipment	'15 years	'	'
Maximum | Leasehold improvements and equipment under capital lease	'	'	'
Property and Equipment	'	'	'
Useful life of property and equipment	'40 years	'	'
Maximum | Car rental fleet vehicles	'	'	'
Property and Equipment	'	'	'
Useful life of property and equipment	'24 months	'	'
UK	'	'	'
Significant Accounting Policies	'	'	'
Net income tax benefit	'	'	11
Positive adjustment primarily from the release of amounts previously recorded in the U.K. as uncertain tax positions	'	'	17
Negative adjustment to valuation allowance against certain U.K. deferred tax assets	'	'	6
7.75% Notes	'	'	'
Significant Accounting Policies	'	'	'
Pre-tax costs associated with the repurchase and redemption of senior subordinated notes	'	17.8	'
Principal amount redeemed	'	375	'
Interest rate (as a percent)	7.75%	7.75%	7.75%
5.75% senior subordinated notes due 2022	'	'	'
Significant Accounting Policies	'	'	'
Interest rate (as a percent)	5.75%	5.75%	5.75%
Fair Value of Financial Instruments	'	'	'
Debt instrument, Carrying Value	550	550	'
5.75% senior subordinated notes due 2022 | Level 2	'	'	'
Fair Value of Financial Instruments	'	'	'
Debt instrument, Carrying Value	550	550	'
Debt instrument, Fair Value	565.1	563.8	'
Mortgage facilities	'	'	'
Fair Value of Financial Instruments	'	'	'
Debt instrument, Carrying Value	118.6	104	'
Mortgage facilities | Level 2	'	'	'
Fair Value of Financial Instruments	'	'	'
Debt instrument, Carrying Value	118.6	104	'
Debt instrument, Fair Value	$117	$105.50	'

Organization_and_Summary_of_Si5

Organization and Summary of Significant Accounting Policies (Details 3) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finance and Insurance Sales	'	'	'
Aggregate reserves relating to chargeback activity	$23.30	$23.40	'
Defined Contribution Plans	'	'	'
Expense incurred relating to defined contribution plans	15.1	13.7	11.8
Advertising	'	'	'
Net advertising costs	82.9	81.4	68.7
Reimbursement of advertising expense	13.1	12.1	10.5
Self Insurance	'	'	'
Aggregate reserves relating to retained risk	$21.10	$20.10	'
Earnings Per Share	'	'	'
Weighted average number of common shares outstanding	90,273,747	90,318,315	91,153,620
Effect of non-participatory equity compensation (in shares)	56,874	24,000	120,512
Weighted average number of common shares outstanding, including effect of dilutive securities	90,330,621	90,342,315	91,274,132

Equity_Method_Investees_Detail

Equity Method Investees (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity Method Investment	'	'	'
Equity method investments	$346.90	$303.20	'
Condensed income statement information	'	'	'
Revenues	6,177	6,043.40	5,970.60
Gross margin	2,043.50	1,897.30	1,802.30
Net income	304	284.2	255.1
Equity in net income of affiliates	30.7	27.6	25.4
Condensed balance sheet information	'	'	'
Current assets	1,194.20	1,129.70	'
Noncurrent assets	8,377.80	8,139.10	'
Total assets	9,572	9,268.80	'
Current liabilities	888.8	866.2	'
Noncurrent liabilities	6,517.50	6,475.50	'
Equity	2,165.70	1,927.10	'
Total liabilities and equity	9,572	9,268.80	'
Jacobs Group	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	50.00%	'	'
The Nix Group	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	50.00%	'	'
Penske Wynn Ferrari Maserati	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	50.00%	'	'
Max Cycles	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	50.00%	'	'
Innovative Media	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	45.00%	'	'
QEK Global Solutions	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	31.00%	'	'
Around-The Clock Freightliner	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	27.00%	'	'
Fleetwash, LLC	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	7.00%	'	'
National Powersport Auctions	'	'	'
Equity Method Investment	'	'	'
Ownership percentage of Equity Method Investment	7.00%	'	'
Penske Truck Leasing Co., L.P. ("PTL")	'	'	'
Equity Method Investment	'	'	'
Equity method investments	268.8	242.8	'
Limited partnership interest (as a percent)	9.00%	'	'
Jacobs Group, The Nix Group, Penske Wynn Ferrari Maserati, Max Cycles, Innovative Media, QEK Global Solutions and Fleetwash, LLC equity method investment	'	'	'
Equity Method Investment	'	'	'
Equity method investments	$78.10	$60.40	'

Business_Combinations_Details

Business Combinations (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
	item	item
Business Combinations	'	'
Revenue from acquisition in 2013	229.1	'
Pre-tax income from acquisition in 2013	9.7	'
Business combinations	'	'
Number of acquired franchises	9	'
Hertz car rental franchise	'	'
Business combinations	'	'
Number of acquired franchises	1	'
Automotive retail franchise	'	'
Business combinations	'	'
Number of acquired franchises	9	26

Business_Combinations_Details_

Business Combinations (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of the aggregate consideration paid and the aggregate amounts of the assets acquired and liabilities assumed	'	'
Accounts receivable	$20.10	$28.90
Inventory	161.6	123.7
Other current assets	2.7	0.6
Property and equipment	34.1	64.2
Indefinite-lived intangibles	191.4	115.1
Other non-current assets	9	0.7
Current liabilities	-79.5	-59.7
Non-current liabilities	-1.3	-23.3
Total cash used in acquisitions	$338.10	$250.20

Business_Combinations_Details_1

Business Combinations (Details 3) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of unaudited consolidated pro forma results of operations	'	'
Revenues	$15,277.70	$14,153.40
Income from continuing operations	267.5	225
Net income	$260.50	$214.80
Income from continuing operations per diluted common share (in dollars per share)	$2.94	$2.47
Net income per diluted common share (in dollars per share)	$2.88	$2.38

Discontinued_Operations_Detail

Discontinued Operations (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Balance Sheet information regarding entities accounted for as discontinued operations	'	'	'
Total liabilities	$35.50	$75.60	'
Retail	'	'	'
Combined financial information regarding entities accounted for as discontinued operations	'	'	'
Revenues	263.2	508.8	830.1
Pre-tax income (loss)	-7.4	-17.5	0.3
Gain (loss) on disposal	0.8	8.1	3.3
Balance Sheet information regarding entities accounted for as discontinued operations	'	'	'
Inventory	35.8	69.2	'
Other assets	28	54.2	'
Total assets	63.8	123.4	'
Floor plan notes payable (including non-trade)	22.7	54.3	'
Other liabilities	12.8	21.3	'
Total liabilities	$35.50	$75.60	'

Inventories_Details

Inventories (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Inventories Net	'	'
New vehicles	$1,725.70	$1,410.50
Used vehicles	588.5	479.7
Commercial vehicles	126.9	'
Parts, accessories and other	97.2	85.5
Total inventories	$2,538.30	$1,975.70

Inventories_Details_2

Inventories (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Inventories	'	'	'
Interest credits and advertising assistance	$35.50	$31.60	$27.80

Property_and_Equipment_Details

Property and Equipment (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Property and equipment	'	'
Total	$1,671.20	$1,369.50
Less: Accumulated depreciation	-430.2	-346.6
Property and equipment, net	1,241	1,022.90
Buildings and leasehold improvements	'	'
Property and equipment	'	'
Total	1,096.70	941
Capitalized interest included in buildings and leasehold improvements	27.8	27.3
Furniture, fixtures and equipment	'	'
Property and equipment	'	'
Total	$574.50	$428.50

Intangible_Assets_Details

Intangible Assets (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2010
Intangible Assets	'	'	'
Goodwill, Accumulated impairment loss	'	'	$606.30
Franchise value, Accumulated impairment loss	'	'	37.1
Summary of the changes in the carrying amount of goodwill and franchise value	'	'	'
Goodwill, Beginning Balance	971.7	894.3	'
Goodwill, Additions	169.3	61.7	'
Goodwill, Deconsolidation of Italian investment	-7.2	'	'
Goodwill, Reconsolidation of Italian investment	7.4	'	'
Goodwill, Foreign currency translation	7.5	15.7	'
Goodwill, Ending Balance	1,148.70	971.7	'
Franchise value, Beginning Balance	276.6	219.3	'
Franchise value, Additions	22.1	53.4	'
Franchise value, Deconsolidation of Italian investment	-2.9	'	'
Franchise value, Reconsolidation of Italian investment	3.1	'	'
Franchise value, Foreign currency translation	1.4	3.9	'
Franchise value, Ending Balance	$300.30	$276.60	'

Intangible_Assets_Details_2

Intangible Assets (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Summary of the changes in the carrying amount of goodwill by reportable segment	'	'
Goodwill, Beginning Balance	$971.70	$894.30
Goodwill, Additions	169.3	61.7
Goodwill, Deconsolidation of Italian investment	-7.2	'
Goodwill, Reconsolidation of Italian investment	7.4	'
Goodwill, Foreign currency translation	7.5	15.7
Goodwill, Ending Balance	1,148.70	971.7
Retail	'	'
Summary of the changes in the carrying amount of goodwill by reportable segment	'	'
Goodwill, Beginning Balance	967.8	894.3
Goodwill, Additions	49.6	57.8
Goodwill, Deconsolidation of Italian investment	-7.2	'
Goodwill, Reconsolidation of Italian investment	7.4	'
Goodwill, Foreign currency translation	9	15.7
Goodwill, Ending Balance	1,026.60	967.8
Other	'	'
Summary of the changes in the carrying amount of goodwill by reportable segment	'	'
Goodwill, Beginning Balance	3.9	'
Goodwill, Additions	119.7	3.9
Goodwill, Foreign currency translation	-1.5	'
Goodwill, Ending Balance	$122.10	$3.90

Vehicle_Financing_Details

Vehicle Financing (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Vehicle Financing	'	'	'
Maturity period of floor plan arrangements outside the U.S. if not payable on demand	'90 days	'	'
Weighted average interest rate on floor plan borrowings (as a percent)	1.80%	2.10%	1.80%

LongTerm_Debt_Details

Long-Term Debt (Details)

Dec. 31, 2013

Dec. 31, 2012

Aug. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Aug. 31, 2012

Dec. 31, 2011

Aug. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

In Millions, unless otherwise specified

USD ($)

USD ($)

Debt redemption prior to October 1, 2015

US Credit Agreement Revolving Credit Line

US Credit Agreement Revolving Credit Line

US Credit Agreement Term Loan

US Credit Agreement Term Loan

UK Credit Agreement Revolving Credit Line

UK Credit Agreement Revolving Credit Line

UK Credit Agreement Revolving Credit Line

UK Credit Agreement Revolving Credit Line

UK Credit Agreement Revolving Credit Line

U.K. Agreement Term Loan

U.K. Agreement Term Loan

U.K. Agreement Term Loan

U.K. Agreement Term Loan

U.K. Agreement Term Loan

U.K. Agreement Term Loan

UK Credit Agreement Overdraft Line of Credit

UK Credit Agreement Overdraft Line of Credit

UK Credit Agreement Overdraft Line of Credit

5.75% senior subordinated notes due 2022

5.75% senior subordinated notes due 2022

5.75% senior subordinated notes due 2022

5.75% senior subordinated notes due 2022

5.75% senior subordinated notes due 2022

Car rental revolver

Car rental revolver

Car rental revolver

Car rental revolver

Working Capital Loan Agreement

Working Capital Loan Agreement

Mortgage facilities

Mortgage facilities

Other Debt Securities

Other Debt Securities

US Credit Agreement Letters of Credit

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

GBP (£)

USD ($)

Minimum

Maximum

GBP (£)

USD ($)

USD ($)

GBP (£)

Minimum

Maximum

GBP (£)

USD ($)

USD ($)

USD ($)

USD ($)

Debt redemption prior to October 1, 2015

USD ($)

USD ($)

Minimum

Maximum

USD ($)

AUD

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Long Term Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long-term Debt

$1,083.20

$936.60

'

$90

$50

$98

$110

$106

'

$48.70

'

'

'

$29.80

$39

'

'

'

'

'

$6.80

$550

$550

'

'

'

$86.90

$23.20

'

'

'

'

$118.60

$104

$3.90

$4.80

'

Less: current portion

-50

-19.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net long-term debt

1,033.20

917.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5.75%

5.75%

'

5.75%

'

'

'

'

'

'

'

'

'

'

'

'

Scheduled maturities of long-term debt for each of the next five years and thereafter

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2014

50

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2015

186.7

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2016

194.9

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2017

46.6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2018

2.9

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2019 and thereafter

602.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total long-term debt reported

1,083.20

936.6

'

90

50

98

110

106

'

48.7

'

'

'

29.8

39

'

'

'

'

'

6.8

550

550

'

'

'

86.9

23.2

'

'

'

'

118.6

104

3.9

4.8

'

Maximum credit available

'

'

'

375

'

'

'

'

100

'

'

'

'

'

'

30

'

'

'

10

'

'

'

'

'

'

200

'

'

'

25

28

'

'

'

'

10

Base rate of interest on loans

'

'

'

'LIBOR

'

'LIBOR

'

'LIBOR

'LIBOR

'

'

'

'

'

'

'

'

'

'Bank of England Base Rate

'Bank of England Base Rate

'

'

'

'

'

'

'three-month LIBOR

'

'

'

'30-day Bill Rate

'30-day Bill Rate

'

'

'

'

'

Line of credit basis spread on variable rate (as a percent)

'

'

'

2.25%

'

2.25%

'

'

'

'

1.35%

3.00%

'

'

'

'

'

'

1.75%

1.75%

'

'

'

'

'

'

2.50%

'

'

'

2.35%

2.35%

'

'

'

'

'

Incremental interest rate for uncollateralized borrowings in excess of maximum limit (as a percent)

'

'

'

1.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Letters of credit outstanding

18.6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

Balance outstanding under credit agreement

'

'

'

90

'

98

'

106

64

'

'

'

18

29.8

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

'

'

Repayment of debt

'

'

'

'

'

12

17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayment of term loan, quarterly installments

'

'

'

'

'

'

'

'

'

'

'

'

1.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Frequency of principal repayments

'

'

'

'

'

'

'

'

'

'

'

'

'Quarterly

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Final payment due December 31, 2015

'

'

'

'

'

'

'

'

'

'

'

'

7.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Low end of interest rate, depending on UK subsidiaries ratios (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.68%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

High end of interest rate, depending on UK subsidiaries ratios (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.33%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$550

'

'

'

'

'

'

'

'

'

'

'

'

'

Specified equity offerings, percentage of debt which may be redeemed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

40.00%

'

'

'

'

'

'

'

'

'

'

'

Change of control, redemption price as a percentage of principal

'

'

101.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Sale of assets, redemption price as percentage of principal

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Domestic Subsidiaries ownership guaranteeing obligations (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vehicle principal balances payment duration

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'12 months

'24 months

'

'

'

'

'

'

'

Derivatives_and_Hedging_Detail

Derivatives and Hedging (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Interest Rate Swap Agreements	'	'
Derivative	'	'
Hedge ineffectiveness recorded	$0	$0
Interest Rate Swap Agreements | Fair Value, Inputs, Level 2	'	'
Derivative	'	'
Estimated liabilities of swaps designated as hedging instruments, fair value	7.7	14.3
Interest Rate Swap Agreements | Floating Rate Floor Plan Debt	'	'
Derivative	'	'
Increase in the weighted average interest rate on floor plan borrowings due to the swaps (as a percent)	0.31%	'
Interest Rate Swap Agreements | Floating Rate Floor Plan Debt | LIBOR portion	'	'
Derivative	'	'
Portion of floating rate floor plan debt fixed by swap agreements	300	'
Interest rate swap, fixed (as a percent)	2.14%	'
Interest Rate Swap Agreements | Floating Rate Floor Plan Debt | Fixed rate portion	'	'
Derivative	'	'
Portion of floating rate floor plan debt fixed by swap agreements	100	'
Interest rate swap, fixed (as a percent)	1.55%	'
Forward foreign exchange contracts | Fair Value, Inputs, Level 2	'	'
Derivative	'	'
Estimated asset of contracts designated as hedging instruments, fair value	$2.20	'

Commitments_and_Contingent_Lia2

Commitments and Contingent Liabilities (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Commitments and Contingent Liabilities	'	'	'
Lease period, minimum	'5 years	'	'
Lease period, maximum	'20 years	'	'
Total rent obligations under leases	$4,900,000,000	'	'
Minimum future rental payments required under operating leases	'	'	'
2014	193,600,000	'	'
2015	194,700,000	'	'
2016	193,500,000	'	'
2017	193,300,000	'	'
2018	191,900,000	'	'
2019 and thereafter	3,972,200,000	'	'
Total	4,939,200,000	'	'
Rent expense	181,200,000	171,200,000	163,200,000
Total rental payments to related parties	100,000	200,000	400,000
Aggregate rent paid by the tenants	24,400,000	'	'
Aggregate rent currently guaranteed by the Company	266,400,000	'	'
Loss Contingencies	'	'	'
Letters of credit outstanding	18,600,000	'	'
Surety bonds posted	9,400,000	'	'
Holdings | Holdings Bond	'	'	'
Loss Contingencies	'	'	'
Senior unsecured notes issued	700,000,000	'	'
Senior subordinated convertible notes, interest rate (as a percent)	3.80%	'	'
Penske Truck Leasing Co., L.P.	'	'	'
Loss Contingencies	'	'	'
Ownership interest in Penske Truck Leasing Co (as a percent)	9.00%	'	'
Guarantee of Indebtedness of Others | GECC	'	'	'
Loss Contingencies	'	'	'
Percentage of interest agreed to indemnify if GECC required to make any payments of principal or interest	9.00%	'	'
Annual fee pay for acting as co-obligor	950,000	'	'
Value of interest payments included in maximum amount of Company's potential obligations	$63,100,000	'	'

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Related party transactions	'	'	'
Provider's cost reimbursed	$100,000	$200,000	$400,000
Automotive Group Realty, LLC	'	'	'
Related party transactions	'	'	'
Amount paid under non-cancelable lease agreements	100,000	200,000	400,000
Penske Corporation and its affiliates	'	'	'
Related party transactions	'	'	'
Provider's cost reimbursed	6,300,000	5,300,000	4,900,000
Amount of Provider's cost received	24,000	31,000	72,000
Amount due from related party	0	2,000	'
Amount due to related party	600,000	500,000	'
Penske Truck Leasing Corporation and other subsidiaries	'	'	'
Related party transactions	'	'	'
General partner ownership percentage	41.10%	'	'
Penske Truck Leasing Corporation and other subsidiaries | General Electric Capital Corporation	'	'	'
Related party transactions	'	'	'
General partner ownership percentage	49.10%	'	'
PTL	'	'	'
Related party transactions	'	'	'
Ownership interest in Penske Truck Leasing Co (as a percent)	9.00%	'	'
Pro rata cash dividends received	9,900,000	18,500,000	7,800,000
PTL | New Jersey	'	'	'
Related party transactions	'	'	'
Income per year from sublease of a portion of dealership	60,000	'	'
Disaster recovery site, annual fees paid	$46,000	'	'

Related_Party_Transactions_Det1

Related Party Transactions (Details 2)	12 Months Ended
	Dec. 31, 2013
Audi, Mercedes-Benz, Porsche, smart | Fairfield, Connecticut	'
Related party transactions	'
Ownership percentage of Equity Method Investment	83.57%
Percentage of operating profit	20.00%
Ownership percentage, option to purchase	20.00%
Audi, Mercedes-Benz, Porsche, smart | Fairfield, Connecticut | Lucio A. Noto	'
Related party transactions	'
Ownership percentage of Equity Method Investment	16.43%
Mercedes-Benz | Greenwich, Connecticut	'
Related party transactions	'
Ownership percentage of Equity Method Investment	80.00%
Percentage of operating profit	20.00%
Mercedes-Benz | Greenwich, Connecticut | Lucio A. Noto	'
Related party transactions	'
Ownership percentage of Equity Method Investment	20.00%
Ferrari, Maserati | Las Vegas, Nevada	'
Related party transactions	'
Ownership percentage of Equity Method Investment	50.00%
Lexus, Toyota | Frankfurt, Germany	'
Related party transactions	'
Ownership percentage of Equity Method Investment	50.00%
Audi, Lexus, Skoda, Toyota, Volkswagen, Citroen | Aachen, Germany	'
Related party transactions	'
Ownership percentage of Equity Method Investment	50.00%
BMW, MINI | Northern Italy	'
Related party transactions	'
Ownership percentage of Equity Method Investment	70.00%

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock-based compensation	'	'	'
Compensation expense related to the Plan	$9.80	$6.80	$6
Restricted Stock	'	'	'
Stock-based compensation	'	'	'
Percentage over which unrecognized compensation cost is expected to be recognized	0.15	0.2	0.5
Period over which forfeiture and non-transferable restrictions lapse	'4 years	'	'
Unrecognized compensation cost related to the restricted stock	16.9	'	'
Period over which unrecognized compensation cost is expected to be recognized	'4 years	'	'
Shares	'	'	'
Balance at the beginning of the period (in shares)	979,022	'	'
Granted (in shares)	448,026	431,339	392,283
Vested (in shares)	-244,059	'	'
Forfeited (in shares)	-14,789	'	'
Balance at the end of the period (in shares)	1,168,200	979,022	'
Weighted Average Grant-Date Fair value	'	'	'
Balance at the beginning of the period (in dollars per share)	$15.28	'	'
Granted (in dollars per share)	$31.41	'	'
Vested (in dollars per share)	$15.74	'	'
Forfeited (in dollars per share)	$23.29	'	'
Balance at the end of the period (in dollars per share)	$23.75	$15.28	'
Aggregate Intrinsic Value	'	'	'
Balance at the end of the period (in dollars)	$55.10	'	'
2012 Plan	'	'	'
Stock-based compensation	'	'	'
Maximum term of options	'3 years	'	'
Number of shares of common stock available for grant under the plan	2,000,000	'	'
Number of shares of common stock available for grant under the plan	1,510,463	'	'

Equity_Details

Equity (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Repurchase Period	'	'	'
Repurchased shares	410,000	405,631	2,449,768
Repurchase of common stock	$15.80	$9.80	$44.30
Repurchased shares, average price (in dollars per share)	$30.93	$24.23	$18.07
Amount authorized to be repurchased	85.6	'	'
Employee Equity Awards	'	'	'
Stock Repurchase Period	'	'	'
Repurchased shares	97,818	'	'
Repurchase of common stock	$3.10	'	'
Repurchased shares, average price (in dollars per share)	$32.13	'	'

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income / (Loss) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Changes in accumulated other comprehensive income (loss) by component	'	'	'
Balance at the beginning of the period	($6.80)	($24.20)	($0.10)
Other comprehensive income before reclassifications	14.9	13.2	-24.2
Amounts reclassified from accumulated other comprehensive income - net of tax provision (benefit)	3.5	4.2	0.1
Amounts reclassified from accumulated other comprehensive income, tax provision	2.9	2.8	0
Amounts reclassified from accumulated other comprehensive income, tax benefit	-0.5	'	'
Net current-period other comprehensive income	18.4	17.4	-24.1
Balance at the end of the period	11.6	-6.8	-24.2
Foreign Currency Translation	'	'	'
Changes in accumulated other comprehensive income (loss) by component	'	'	'
Balance at the beginning of the period	0.4	-17.9	-12.1
Other comprehensive income before reclassifications	11.9	18.3	-5.8
Amounts reclassified from accumulated other comprehensive income - net of tax provision (benefit)	-0.9	'	'
Net current-period other comprehensive income	11	18.3	-5.8
Balance at the end of the period	11.4	0.4	-17.9
Interest Rate Swaps	'	'	'
Changes in accumulated other comprehensive income (loss) by component	'	'	'
Balance at the beginning of the period	-6.1	-7.1	2.5
Other comprehensive income before reclassifications	-0.4	-3.2	-9.7
Amounts reclassified from accumulated other comprehensive income - net of tax provision (benefit)	4.4	4.2	0.1
Net current-period other comprehensive income	4	1	-9.6
Balance at the end of the period	-2.1	-6.1	-7.1
Other	'	'	'
Changes in accumulated other comprehensive income (loss) by component	'	'	'
Balance at the beginning of the period	-1.1	0.8	9.5
Other comprehensive income before reclassifications	3.4	-1.9	-8.7
Net current-period other comprehensive income	3.4	-1.9	-8.7
Balance at the end of the period	$2.30	($1.10)	$0.80

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current:	'	'	'
Federal	$7.80	($16.70)	$16
State and local	5.1	1.2	3.7
Foreign	33.8	26.5	4.9
Total current	46.7	11	24.6
Deferred:	'	'	'
Federal	71.3	70.1	34.2
State and local	9.5	11.8	0.9
Foreign	-3.2	1.4	12.1
Total deferred	77.6	83.8	47.2
Income taxes relating to continuing operations	124.3	94.3	71.8
Reconciliation of income taxes from continuing operations at federal statutory rate	'	'	'
Federal statutory income tax rate (as a percent)	35.00%	35.00%	35.00%
Income taxes relating to continuing operations at federal statutory rate of 35%	131.4	101.5	86.8
State and local income taxes, net of federal taxes	8.6	7.1	1.9
Foreign	-15.7	-12.2	-0.9
Uncertain tax positions	-0.2	-1.4	-16.1
Other	0.2	-0.7	0.1
Income taxes relating to continuing operations	124.3	94.3	71.8
Net uncertain tax position provision adjustment	'	'	16
Deferred Tax Assets	'	'	'
Accrued liabilities	61.8	51.2	'
Net operating loss carryforwards	13.7	14.1	'
Interest rate swap	3.1	5.7	'
Other	12.4	3.4	'
Total deferred tax assets	91	74.4	'
Valuation allowance	-14.6	-14.6	'
Net deferred tax assets	76.4	59.8	'
Deferred Tax Liabilities	'	'	'
Depreciation and amortization	-175.9	-136.5	'
Partnership investments	-219	-178.6	'
Convertible notes	-12.5	-12.5	'
Other	-1.3	-0.5	'
Total deferred tax liabilities	-408.7	-328.1	'
Net deferred tax liabilities	-332.3	-268.3	'
Income from continuing operations before income taxes of foreign subsidiaries	134.7	117	98.4
Amount of total temporary difference related to the excess of financial reporting basis over tax basis in the foreign subsidiaries on which U.S. federal income taxes are not provided	$664.30	'	'

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013
			UK	German	Italian	State	Federal and state	Federal
Operating loss carryforwards	'	'	'	'	'	'	'	'
Net operating loss carryforwards that expire at various dates	'	'	'	'	'	$160,300,000	'	'
Amount of tax credit carryforwards	'	'	'	'	'	5,500,000	2,400,000	'
Net operating loss carryforwards not subject to expiration	'	'	300,000	11,600,000	400,000	'	'	'
Net operating loss carryforwards utilized	'	'	'	'	'	48,000,000	'	39,100,000
Valuation allowance against net operating loss carryforwards	'	'	'	3,600,000	'	3,100,000	'	'
Valuation allowance against state credit carryforwards	'	'	'	'	'	29,000	'	'
Valuation allowance against deferred tax assets related to buildings	$14,600,000	$14,600,000	$7,900,000	'	'	'	'	'

Income_Taxes_Details_3

Income Taxes (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Movement in uncertain tax positions	'	'	'
Uncertain tax positions at the beginning of the period	$14.70	$14.90	$36.10
Gross increase - tax position in prior periods	0.3	1.3	0.7
Gross decrease - tax position in prior periods	-0.8	-0.8	-19.1
Gross increase - current period tax position	0.1	'	'
Settlements	-0.4	-0.9	-2.2
Lapse in statute of limitations	-0.1	-0.3	-0.5
Foreign exchange	0.2	0.5	-0.1
Uncertain tax positions at the end of the period	14	14.7	14.9
Interest and penalties included within uncertain tax positions	2.7	'	'
Impact of uncertain tax positions on effective tax rate, if recognized	$14	'	'

Segment_Information_Details

Segment Information (Details)	12 Months Ended
	Dec. 31, 2013
	item
Segment Information	'
Number of reportable Segments	2
Number of geographic operating segments	4

Segment_Information_Details_2

Segment Information (Details 2) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues and adjusted segment income by reportable segment	'	'	'	'	'	'	'	'	'	'	'
Total revenues	$3,855	$3,798.90	$3,669.90	$3,381.60	$3,350.80	$3,310.70	$3,286.70	$3,136.10	$14,705.40	$13,084.30	$11,039.40
Floor plan interest expense	'	'	'	'	'	'	'	'	43.6	38.3	26.8
Other interest expense	'	'	'	'	'	'	'	'	47.9	46.8	44.1
Debt discount amortization	'	'	'	'	'	'	'	'	'	'	1.7
Depreciation	'	'	'	'	'	'	'	'	61.7	53.5	46.4
Equity in earnings of affiliates	'	'	'	'	'	'	'	'	30.7	27.6	25.4
Adjusted segment Income	'	'	'	'	'	'	'	'	375.4	290.1	248
Reconciliation of total adjusted segment income to consolidated income from continuing operations before income taxes	'	'	'	'	'	'	'	'	'	'	'
Adjusted segment Income	'	'	'	'	'	'	'	'	375.4	290.1	248
Debt redemption costs	'	'	'	'	'	'	'	'	'	-17.8	'
Income (loss) from continuing operations before income taxes	'	'	'	'	'	'	'	'	375.4	290.1	248
Total assets, equity method investments, and capital expenditures by reporting segment	'	'	'	'	'	'	'	'	'	'	'
Total assets	6,415.50	'	'	'	5,379	'	'	'	6,415.50	5,379	'
Equity method investments	346.9	'	'	'	303.2	'	'	'	346.9	303.2	'
Capital expenditures	'	'	'	'	'	'	'	'	169.9	152.3	131.7
Intersegment Elimination	'	'	'	'	'	'	'	'	'	'	'
Revenues and adjusted segment income by reportable segment	'	'	'	'	'	'	'	'	'	'	'
Total revenues	'	'	'	'	'	'	'	'	-32.3	-4.6	'
Adjusted segment Income	'	'	'	'	'	'	'	'	-0.3	-0.1	'
Reconciliation of total adjusted segment income to consolidated income from continuing operations before income taxes	'	'	'	'	'	'	'	'	'	'	'
Adjusted segment Income	'	'	'	'	'	'	'	'	-0.3	-0.1	'
Income (loss) from continuing operations before income taxes	'	'	'	'	'	'	'	'	-0.3	-0.1	'
Total assets, equity method investments, and capital expenditures by reporting segment	'	'	'	'	'	'	'	'	'	'	'
Total assets	-0.3	'	'	'	-0.1	'	'	'	-0.3	-0.1	'
Retail | Operating segments	'	'	'	'	'	'	'	'	'	'	'
Revenues and adjusted segment income by reportable segment	'	'	'	'	'	'	'	'	'	'	'
Total revenues	'	'	'	'	'	'	'	'	14,532.20	13,084.90	11,039.40
Floor plan interest expense	'	'	'	'	'	'	'	'	43	38.3	26.8
Other interest expense	'	'	'	'	'	'	'	'	44.5	46.7	44.1
Debt discount amortization	'	'	'	'	'	'	'	'	'	'	1.7
Depreciation	'	'	'	'	'	'	'	'	60.4	53.5	46.4
Equity in earnings of affiliates	'	'	'	'	'	'	'	'	4.9	3.3	2.1
Adjusted segment Income	'	'	'	'	'	'	'	'	341.1	284.3	224.7
Reconciliation of total adjusted segment income to consolidated income from continuing operations before income taxes	'	'	'	'	'	'	'	'	'	'	'
Adjusted segment Income	'	'	'	'	'	'	'	'	341.1	284.3	224.7
Income (loss) from continuing operations before income taxes	'	'	'	'	'	'	'	'	341.1	284.3	224.7
Total assets, equity method investments, and capital expenditures by reporting segment	'	'	'	'	'	'	'	'	'	'	'
Total assets	5,747.60	'	'	'	5,101.30	'	'	'	5,747.60	5,101.30	'
Equity method investments	81.6	'	'	'	53.3	'	'	'	81.6	53.3	'
Capital expenditures	'	'	'	'	'	'	'	'	169.9	152.3	131.7
Other | Operating segments	'	'	'	'	'	'	'	'	'	'	'
Revenues and adjusted segment income by reportable segment	'	'	'	'	'	'	'	'	'	'	'
Total revenues	'	'	'	'	'	'	'	'	205.5	4	'
Floor plan interest expense	'	'	'	'	'	'	'	'	0.6	'	'
Other interest expense	'	'	'	'	'	'	'	'	3.4	0.1	'
Depreciation	'	'	'	'	'	'	'	'	1.3	'	'
Equity in earnings of affiliates	'	'	'	'	'	'	'	'	25.8	24.3	23.3
Adjusted segment Income	'	'	'	'	'	'	'	'	34.6	23.7	23.3
Reconciliation of total adjusted segment income to consolidated income from continuing operations before income taxes	'	'	'	'	'	'	'	'	'	'	'
Adjusted segment Income	'	'	'	'	'	'	'	'	34.6	23.7	23.3
Income (loss) from continuing operations before income taxes	'	'	'	'	'	'	'	'	34.6	23.7	23.3
Total assets, equity method investments, and capital expenditures by reporting segment	'	'	'	'	'	'	'	'	'	'	'
Total assets	668.2	'	'	'	277.8	'	'	'	668.2	277.8	'
Equity method investments	265.3	'	'	'	249.9	'	'	'	265.3	249.9	'
Capital expenditures	'	'	'	'	'	'	'	'	$86.40	$9.90	'

Segment_Information_Details_3

Segment Information (Details 3) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Sales to external customers and Long-lived assets, net	'	'	'	'	'	'	'	'	'	'	'
Sales to external customer	$3,855	$3,798.90	$3,669.90	$3,381.60	$3,350.80	$3,310.70	$3,286.70	$3,136.10	$14,705.40	$13,084.30	$11,039.40
Long-lived assets, net	1,619.90	'	'	'	1,346.80	'	'	'	1,619.90	1,346.80	'
U.S.	'	'	'	'	'	'	'	'	'	'	'
Sales to external customers and Long-lived assets, net	'	'	'	'	'	'	'	'	'	'	'
Sales to external customer	'	'	'	'	'	'	'	'	9,466.30	8,438.80	7,174.30
Long-lived assets, net	1,172.10	'	'	'	964.9	'	'	'	1,172.10	964.9	'
Foreign	'	'	'	'	'	'	'	'	'	'	'
Sales to external customers and Long-lived assets, net	'	'	'	'	'	'	'	'	'	'	'
Sales to external customer	'	'	'	'	'	'	'	'	5,239.10	4,645.50	3,865.10
Long-lived assets, net	$447.80	'	'	'	$381.90	'	'	'	$447.80	$381.90	'

Summary_of_Quarterly_Financial2

Summary of Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data	'	'	'	'	'	'	'	'	'	'	'
Total revenues	$3,855	$3,798.90	$3,669.90	$3,381.60	$3,350.80	$3,310.70	$3,286.70	$3,136.10	$14,705.40	$13,084.30	$11,039.40
Gross profit	586.4	576.8	565.1	531.5	513.3	498.9	501.6	491.9	2,259.80	2,005.70	1,752.10
Net income	59.7	65.5	62.5	58	49.3	41.3	49.6	47	245.7	187.2	178.3
Net income attributable to Penske Automotive Group common stockholders	$59.20	$65.30	$62	$57.70	$48.60	$41	$49.10	$46.80	$244.20	$185.50	$176.90
Diluted earnings per share attributable to Penske Automotive Group common stockholders (in dollars per share)	$0.66	$0.72	$0.69	$0.64	$0.54	$0.45	$0.54	$0.52	$2.70	$2.05	$1.94

Condensed_Consolidating_Financ2

Condensed Consolidating Financial Information (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Millions, unless otherwise specified
Condensed consolidating balance sheet	'	'	'	'
Cash and cash equivalents	$49.80	$43.50	$26.80	$17.90
Accounts receivable, net	606.2	550.9	'	'
Inventories	2,538.30	1,975.70	'	'
Other current assets	88.5	90.4	'	'
Assets held for sale	63.8	123.4	'	'
Total current assets	3,346.60	2,783.90	'	'
Property and equipment, net	1,241	1,022.90	'	'
Intangible assets	1,449	1,248.30	'	'
Equity method investments	346.9	303.2	'	'
Other long-term assets	32	20.7	'	'
Total assets	6,415.50	5,379	'	'
Floor plan notes payable	1,704.40	1,404.90	'	'
Floor plan notes payable - non-trade	903.2	711.4	'	'
Accounts payable	374.7	261.1	'	'
Accrued expenses	264	222.6	'	'
Current portion of long-term debt	50	19.5	'	'
Liabilities held for sale	35.5	75.6	'	'
Total current liabilities	3,331.80	2,695.10	'	'
Long-term debt	1,033.20	917.1	'	'
Deferred tax liabilities	361.4	287.8	'	'
Other long-term liabilities	167	162.7	'	'
Total liabilities	4,893.40	4,062.70	'	'
Total equity	1,522.10	1,316.30	1,149.50	1,055
Total liabilities and equity	6,415.50	5,379	'	'
5.75% Notes	'	'	'	'
Condensed consolidating balance sheet	'	'	'	'
Interest rate (as a percent)	5.75%	5.75%	5.75%	'
Domestic Subsidiaries ownership guaranteeing obligations (as a percent)	100.00%	'	'	'
Penske Automotive Group | 5.75% Notes	'	'	'	'
Condensed consolidating balance sheet	'	'	'	'
Interest rate (as a percent)	5.75%	5.75%	'	'
Guarantor Subsidiaries	'	'	'	'
Condensed consolidating balance sheet	'	'	'	'
Domestic Subsidiaries ownership guaranteeing obligations (as a percent)	100.00%	'	'	'
Eliminations	'	'	'	'
Condensed consolidating balance sheet	'	'	'	'
Accounts receivable, net	-392.5	-345.5	'	'
Total current assets	-392.5	-345.5	'	'
Other long-term assets	-1,686	-1,522.60	'	'
Total assets	-2,078.50	-1,868.10	'	'
Accrued expenses	-392.5	-345.5	'	'
Total current liabilities	-392.5	-345.5	'	'
Long-term debt	-123.5	-76	'	'
Total liabilities	-516	-421.5	'	'
Total equity	-1,562.50	-1,446.60	'	'
Total liabilities and equity	-2,078.50	-1,868.10	'	'
Reportable legal entities | Penske Automotive Group	'	'	'	'
Condensed consolidating balance sheet	'	'	'	'
Accounts receivable, net	392.5	345.5	'	'
Other current assets	2.9	3.5	'	'
Total current assets	395.4	349	'	'
Property and equipment, net	4	4.5	'	'
Equity method investments	295	252.8	'	'
Other long-term assets	1,697.40	1,535.90	'	'
Total assets	2,391.80	2,142.20	'	'
Floor plan notes payable - non-trade	128.2	112.1	'	'
Accounts payable	3.4	3.3	'	'
Accrued expenses	0.1	0.5	'	'
Total current liabilities	131.7	115.9	'	'
Long-term debt	738	710	'	'
Total liabilities	869.7	825.9	'	'
Total equity	1,522.10	1,316.30	'	'
Total liabilities and equity	2,391.80	2,142.20	'	'
Reportable legal entities | Guarantor Subsidiaries	'	'	'	'
Condensed consolidating balance sheet	'	'	'	'
Cash and cash equivalents	12.6	34.4	25.8	15.6
Accounts receivable, net	387.5	366.2	'	'
Inventories	1,436.10	1,193.60	'	'
Other current assets	43.5	55.8	'	'
Assets held for sale	15.6	42.1	'	'
Total current assets	1,895.30	1,692.10	'	'
Property and equipment, net	808.8	640.8	'	'
Intangible assets	782.7	720.8	'	'
Other long-term assets	5.3	5	'	'
Total assets	3,492.10	3,058.70	'	'
Floor plan notes payable	1,028.70	893.8	'	'
Floor plan notes payable - non-trade	447.3	344.8	'	'
Accounts payable	143.2	122.5	'	'
Accrued expenses	123.6	113.5	'	'
Current portion of long-term debt	39.5	9.8	'	'
Liabilities held for sale	6.8	21.8	'	'
Total current liabilities	1,789.10	1,506.20	'	'
Long-term debt	158.3	121.6	'	'
Deferred tax liabilities	337.6	260.4	'	'
Other long-term liabilities	69.3	85.1	'	'
Total liabilities	2,354.30	1,973.30	'	'
Total equity	1,137.80	1,085.40	'	'
Total liabilities and equity	3,492.10	3,058.70	'	'
Reportable legal entities | Non-Guarantor Subsidiaries	'	'	'	'
Condensed consolidating balance sheet	'	'	'	'
Cash and cash equivalents	37.2	9.1	1	2.3
Accounts receivable, net	218.7	184.7	'	'
Inventories	1,102.20	782.1	'	'
Other current assets	42.1	31.1	'	'
Assets held for sale	48.2	81.3	'	'
Total current assets	1,448.40	1,088.30	'	'
Property and equipment, net	428.2	377.6	'	'
Intangible assets	666.3	527.5	'	'
Equity method investments	51.9	50.4	'	'
Other long-term assets	15.3	2.4	'	'
Total assets	2,610.10	2,046.20	'	'
Floor plan notes payable	675.7	511.1	'	'
Floor plan notes payable - non-trade	327.7	254.5	'	'
Accounts payable	228.1	135.3	'	'
Accrued expenses	532.8	454.1	'	'
Current portion of long-term debt	10.5	9.7	'	'
Liabilities held for sale	28.7	53.8	'	'
Total current liabilities	1,803.50	1,418.50	'	'
Long-term debt	260.4	161.5	'	'
Deferred tax liabilities	23.8	27.4	'	'
Other long-term liabilities	97.7	77.6	'	'
Total liabilities	2,185.40	1,685	'	'
Total equity	424.7	361.2	'	'
Total liabilities and equity	$2,610.10	$2,046.20	'	'

Condensed_Consolidating_Financ3

Condensed Consolidating Financial Information (Details 2) (USD $)	3 Months Ended								12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed consolidating statement of income	'	'	'	'	'	'	'	'	'	'	'
Revenues	$3,855	$3,798.90	$3,669.90	$3,381.60	$3,350.80	$3,310.70	$3,286.70	$3,136.10	$14,705.40	$13,084.30	$11,039.40
Cost of sales	'	'	'	'	'	'	'	'	12,445.60	11,078.60	9,287.30
Gross profit	586.4	576.8	565.1	531.5	513.3	498.9	501.6	491.9	2,259.80	2,005.70	1,752.10
Selling, general and administrative expenses	'	'	'	'	'	'	'	'	1,761.90	1,586.80	1,410.50
Depreciation	'	'	'	'	'	'	'	'	61.7	53.5	46.4
Operating income	'	'	'	'	'	'	'	'	436.2	365.4	295.2
Floor plan interest expense	'	'	'	'	'	'	'	'	-43.6	-38.3	-26.8
Other interest expense	'	'	'	'	'	'	'	'	-47.9	-46.8	-44.1
Debt discount amortization	'	'	'	'	'	'	'	'	'	'	-1.7
Equity in earnings of affiliates	'	'	'	'	'	'	'	'	30.7	27.6	25.4
Debt redemption costs	'	'	'	'	'	'	'	'	'	-17.8	'
Income from continuing operations before income taxes	'	'	'	'	'	'	'	'	375.4	290.1	248
Income taxes	'	'	'	'	'	'	'	'	-124.3	-94.3	-71.8
Income from continuing operations	'	'	'	'	'	'	'	'	251.1	195.8	176.2
Loss from discontinued operations, net of tax	'	'	'	'	'	'	'	'	-5.4	-8.6	2.1
Net income	59.7	65.5	62.5	58	49.3	41.3	49.6	47	245.7	187.2	178.3
Other Comprehensive Income (Loss), Net of Taxes	'	'	'	'	'	'	'	'	18.9	17.6	-24.1
Comprehensive Income	'	'	'	'	'	'	'	'	264.6	204.8	154.2
Less: Comprehensive income attributable to the non-controlling interests	'	'	'	'	'	'	'	'	2	1.9	1.4
Comprehensive income attributable to Penske Automotive Group common stockholders	'	'	'	'	'	'	'	'	262.6	202.9	152.8
Eliminations	'	'	'	'	'	'	'	'	'	'	'
Condensed consolidating statement of income	'	'	'	'	'	'	'	'	'	'	'
Equity in earnings of subsidiaries	'	'	'	'	'	'	'	'	-407.3	-341.1	-272.4
Income from continuing operations before income taxes	'	'	'	'	'	'	'	'	-407.3	-341.1	-272.4
Income taxes	'	'	'	'	'	'	'	'	135.4	111.6	79.3
Income from continuing operations	'	'	'	'	'	'	'	'	-271.9	-229.5	-193.1
Loss from discontinued operations, net of tax	'	'	'	'	'	'	'	'	5.4	8.6	-2
Net income	'	'	'	'	'	'	'	'	-266.5	-220.9	-195.1
Other Comprehensive Income (Loss), Net of Taxes	'	'	'	'	'	'	'	'	-9.8	-16.6	21.2
Comprehensive Income	'	'	'	'	'	'	'	'	-276.3	-237.5	-173.9
Less: Comprehensive income attributable to the non-controlling interests	'	'	'	'	'	'	'	'	-0.5	-0.3	'
Comprehensive income attributable to Penske Automotive Group common stockholders	'	'	'	'	'	'	'	'	-275.8	-237.2	-173.9
Reportable legal entities | Penske Automotive Group	'	'	'	'	'	'	'	'	'	'	'
Condensed consolidating statement of income	'	'	'	'	'	'	'	'	'	'	'
Selling, general and administrative expenses	'	'	'	'	'	'	'	'	21.4	19.4	19
Depreciation	'	'	'	'	'	'	'	'	1.8	1.3	1.3
Operating income	'	'	'	'	'	'	'	'	-23.2	-20.7	-20.3
Floor plan interest expense	'	'	'	'	'	'	'	'	-9.6	-8.6	-1.4
Other interest expense	'	'	'	'	'	'	'	'	-26.1	-29.5	-25.4
Debt discount amortization	'	'	'	'	'	'	'	'	'	'	-1.7
Equity in earnings of affiliates	'	'	'	'	'	'	'	'	25.5	24	23
Debt redemption costs	'	'	'	'	'	'	'	'	'	-17.8	'
Equity in earnings of subsidiaries	'	'	'	'	'	'	'	'	407.3	341.1	272.4
Income from continuing operations before income taxes	'	'	'	'	'	'	'	'	373.9	288.5	246.6
Income taxes	'	'	'	'	'	'	'	'	-124.3	-94.3	-71.8
Income from continuing operations	'	'	'	'	'	'	'	'	249.6	194.2	174.8
Loss from discontinued operations, net of tax	'	'	'	'	'	'	'	'	-5.4	-8.6	2.1
Net income	'	'	'	'	'	'	'	'	244.2	185.6	176.9
Other Comprehensive Income (Loss), Net of Taxes	'	'	'	'	'	'	'	'	18.9	17.6	-24.1
Comprehensive Income	'	'	'	'	'	'	'	'	263.1	203.2	152.8
Less: Comprehensive income attributable to the non-controlling interests	'	'	'	'	'	'	'	'	0.5	0.3	'
Comprehensive income attributable to Penske Automotive Group common stockholders	'	'	'	'	'	'	'	'	262.6	202.9	152.8
Reportable legal entities | Guarantor Subsidiaries	'	'	'	'	'	'	'	'	'	'	'
Condensed consolidating statement of income	'	'	'	'	'	'	'	'	'	'	'
Revenues	'	'	'	'	'	'	'	'	8,761.60	7,783.60	6,609.30
Cost of sales	'	'	'	'	'	'	'	'	7,348.40	6,551.90	5,507.80
Gross profit	'	'	'	'	'	'	'	'	1,413.20	1,231.70	1,101.50
Selling, general and administrative expenses	'	'	'	'	'	'	'	'	1,077.40	954.8	879.2
Depreciation	'	'	'	'	'	'	'	'	35.8	29.2	25.7
Operating income	'	'	'	'	'	'	'	'	300	247.7	196.6
Floor plan interest expense	'	'	'	'	'	'	'	'	-20	-16.7	-13.8
Other interest expense	'	'	'	'	'	'	'	'	-4.5	-0.6	-1
Income from continuing operations before income taxes	'	'	'	'	'	'	'	'	275.5	230.4	181.8
Income taxes	'	'	'	'	'	'	'	'	-100.8	-87.3	-53
Income from continuing operations	'	'	'	'	'	'	'	'	174.7	143.1	128.8
Loss from discontinued operations, net of tax	'	'	'	'	'	'	'	'	0.4	'	3.1
Net income	'	'	'	'	'	'	'	'	175.1	143.1	131.9
Other Comprehensive Income (Loss), Net of Taxes	'	'	'	'	'	'	'	'	4	1	-9.6
Comprehensive Income	'	'	'	'	'	'	'	'	179.1	144.1	122.3
Comprehensive income attributable to Penske Automotive Group common stockholders	'	'	'	'	'	'	'	'	179.1	144.1	122.3
Reportable legal entities | Non-Guarantor Subsidiaries	'	'	'	'	'	'	'	'	'	'	'
Condensed consolidating statement of income	'	'	'	'	'	'	'	'	'	'	'
Revenues	'	'	'	'	'	'	'	'	5,943.80	5,300.70	4,430.10
Cost of sales	'	'	'	'	'	'	'	'	5,097.20	4,526.70	3,779.50
Gross profit	'	'	'	'	'	'	'	'	846.6	774	650.6
Selling, general and administrative expenses	'	'	'	'	'	'	'	'	663.1	612.6	512.3
Depreciation	'	'	'	'	'	'	'	'	24.1	23	19.4
Operating income	'	'	'	'	'	'	'	'	159.4	138.4	118.9
Floor plan interest expense	'	'	'	'	'	'	'	'	-14	-13	-11.6
Other interest expense	'	'	'	'	'	'	'	'	-17.3	-16.7	-17.7
Equity in earnings of affiliates	'	'	'	'	'	'	'	'	5.2	3.6	2.4
Income from continuing operations before income taxes	'	'	'	'	'	'	'	'	133.3	112.3	92
Income taxes	'	'	'	'	'	'	'	'	-34.6	-24.3	-26.3
Income from continuing operations	'	'	'	'	'	'	'	'	98.7	88	65.7
Loss from discontinued operations, net of tax	'	'	'	'	'	'	'	'	-5.8	-8.6	-1.1
Net income	'	'	'	'	'	'	'	'	92.9	79.4	64.6
Other Comprehensive Income (Loss), Net of Taxes	'	'	'	'	'	'	'	'	5.8	15.6	-11.6
Comprehensive Income	'	'	'	'	'	'	'	'	98.7	95	53
Less: Comprehensive income attributable to the non-controlling interests	'	'	'	'	'	'	'	'	2	1.9	1.4
Comprehensive income attributable to Penske Automotive Group common stockholders	'	'	'	'	'	'	'	'	$96.70	$93.10	$51.60

Condensed_Consolidating_Financ4

Condensed Consolidating Financial Information (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed consolidating statement of cash flows	'	'	'
Net cash from (used in) continuing operating activities	$314.80	$324.60	$136.80
Investing activities:	'	'	'
Purchase of property and equipment	-169.9	-152.3	-131.7
Purchase of car rental vehicles	-86.4	-9.9	'
Proceeds from sale-leaseback transactions	'	1.6	'
Acquisitions, net	-338.1	-250.2	-232.1
Other	6.8	8.8	2.9
Net cash from (used in) continuing investing activities	-587.6	-402	-360.9
Financing activities:	'	'	'
Repurchase of 3.5% senior subordinated convertible notes	'	-62.7	-87.3
Issuance of 5.75% senior subordinated notes	'	550	'
Repurchase of 7.75% senior subordinated notes	'	-390.8	'
Net borrowings (repayments) of long-term debt	144.8	-28.5	155.2
Net (repayments) borrowings of floor plan notes payable - non-trade	191.8	71.6	197
Proceeds from exercises of options, including excess tax benefit	'	'	3.4
Repurchases of common stock	-15.8	-9.8	-44.3
Dividends	-56	-41.5	-22
Payment of deferred financing fees	'	-8.6	'
Other	0.2	-1.1	'
Net cash from (used in) continuing financing activities	265	78.6	202
Net cash from (used in) discontinued operations	14.1	15.5	31
Net change in cash and cash equivalents	6.3	16.7	8.9
Cash and cash equivalents, beginning of period	43.5	26.8	17.9
Cash and cash equivalents, end of period	49.8	43.5	26.8
3.5% Notes	'	'	'
Financing activities:	'	'	'
Interest rate (as a percent)	3.50%	3.50%	3.50%
5.75% Notes	'	'	'
Financing activities:	'	'	'
Interest rate (as a percent)	5.75%	5.75%	5.75%
7.75% Notes	'	'	'
Financing activities:	'	'	'
Interest rate (as a percent)	7.75%	7.75%	7.75%
Penske Automotive Group | 3.5% Notes	'	'	'
Financing activities:	'	'	'
Interest rate (as a percent)	'	3.50%	3.50%
Penske Automotive Group | 5.75% Notes	'	'	'
Financing activities:	'	'	'
Interest rate (as a percent)	5.75%	5.75%	'
Penske Automotive Group | 7.75% Notes	'	'	'
Financing activities:	'	'	'
Interest rate (as a percent)	'	7.75%	7.75%
Reportable legal entities | Penske Automotive Group	'	'	'
Condensed consolidating statement of cash flows	'	'	'
Net cash from (used in) continuing operating activities	46.6	45.5	-39.4
Investing activities:	'	'	'
Purchase of property and equipment	-1.4	-1.1	-1.3
Other	-17.5	-3.3	'
Net cash from (used in) continuing investing activities	-18.9	-4.4	-1.3
Financing activities:	'	'	'
Repurchase of 3.5% senior subordinated convertible notes	'	-62.7	-87.3
Issuance of 5.75% senior subordinated notes	'	550	'
Repurchase of 7.75% senior subordinated notes	'	-390.8	'
Net borrowings (repayments) of long-term debt	28	-98.9	125
Net (repayments) borrowings of floor plan notes payable - non-trade	16.1	21.2	65.9
Proceeds from exercises of options, including excess tax benefit	'	'	3.4
Repurchases of common stock	-15.8	-9.8	-44.3
Dividends	-56	-41.5	-22
Payment of deferred financing fees	'	-8.6	'
Net cash from (used in) continuing financing activities	-27.7	-41.1	40.7
Reportable legal entities | Guarantor Subsidiaries	'	'	'
Condensed consolidating statement of cash flows	'	'	'
Net cash from (used in) continuing operating activities	31.4	126.9	188.6
Investing activities:	'	'	'
Purchase of property and equipment	-111.7	-101.7	-76.1
Purchase of car rental vehicles	-86.4	-9.9	'
Acquisitions, net	-127.5	-115.8	-194.3
Other	20	4.8	'
Net cash from (used in) continuing investing activities	-305.6	-222.6	-270.4
Financing activities:	'	'	'
Net borrowings (repayments) of long-term debt	66.4	50.9	18.4
Net (repayments) borrowings of floor plan notes payable - non-trade	181.8	42.7	34.9
Distributions from (to) parent	0.9	5.2	6.1
Net cash from (used in) continuing financing activities	249.1	98.8	59.4
Net cash from (used in) discontinued operations	3.3	5.5	32.6
Net change in cash and cash equivalents	-21.8	8.6	10.2
Cash and cash equivalents, beginning of period	34.4	25.8	15.6
Cash and cash equivalents, end of period	12.6	34.4	25.8
Reportable legal entities | Non-Guarantor Subsidiaries	'	'	'
Condensed consolidating statement of cash flows	'	'	'
Net cash from (used in) continuing operating activities	236.8	152.2	-12.4
Investing activities:	'	'	'
Purchase of property and equipment	-56.8	-49.5	-54.3
Proceeds from sale-leaseback transactions	'	1.6	'
Acquisitions, net	-210.6	-134.4	-37.8
Other	4.3	7.3	2.9
Net cash from (used in) continuing investing activities	-263.1	-175	-89.2
Financing activities:	'	'	'
Net borrowings (repayments) of long-term debt	50.4	19.5	11.8
Net (repayments) borrowings of floor plan notes payable - non-trade	-6.1	7.7	96.2
Other	0.2	-1.1	'
Distributions from (to) parent	-0.9	-5.2	-6.1
Net cash from (used in) continuing financing activities	43.6	20.9	101.9
Net cash from (used in) discontinued operations	10.8	10	-1.6
Net change in cash and cash equivalents	28.1	8.1	-1.3
Cash and cash equivalents, beginning of period	9.1	1	2.3
Cash and cash equivalents, end of period	$37.20	$9.10	$1

Schedule_II_VALUATION_AND_QUAL1

Schedule II VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts	'	'	'
Valuation and qualifying accounts	'	'	'
Balance at Beginning of Year	$2.90	$2	$1.80
Additions	1	0.9	1
Deductions, Recoveries & Other	-0.5	'	-0.8
Balance at Ending of Year	3.4	2.9	2
Tax valuation allowance	'	'	'
Valuation and qualifying accounts	'	'	'
Balance at Beginning of Year	14.6	11.8	7.3
Additions	1.6	3	8.8
Deductions, Recoveries & Other	-1.6	-0.2	-4.3
Balance at Ending of Year	$14.60	$14.60	$11.80