Sales of vehicles increased by $747,248, or 138%, from $542,783 for the year ended December 31, 2020 to $1,290,031 for the year ended December 31, 2021. As referenced earlier, this increase is primarily due to a full year of commercial sales in 2021, compared to three months in 2020 (as commercialization of the Polestar 2 didn’t commence until Q4 2020), as well as Polestar’s further expansion into new markets in 2021. Sales of vehicles increased by $542,783, or 100%, from nil for the year ended December 31, 2019 to $542,783 for the year ended December 31, 2020. The increase was due to the first commercial deliveries of the Polestar 1 and Polestar 2 to customers during the year ended December 31, 2020.
Sales of software and performance engineered kits decreased by $9,553, or 27%, from $35,434 for the year ended December 31, 2020 to $25,881 for the year ended December 31, 2021. This decrease is a result of Polestar moving towards a focus on vehicle sales and Volvo Cars offering Polestar’s performance engineered kits at a reduced price. Sales of software and performance engineered kits decreased by $37,673, or 52%, from $73,107 for the year ended December 31, 2019 to $35,434 for the year ended December 31, 2020. The decrease is mainly an effect of the termination of the performance engineered kits agreement in March 2019. A new performance engineered kits agreement was not signed until December 2020, at which point in time Volvo Cars resumed offering Polestar’s performance engineered kits to its customers, but at a reduced price.
Sales of carbon credits decreased by $20,842, or 77%, from $27,141 for the year ended December 31, 2020 to $6,299 for the year ended December 31, 2021. This decrease is due to prevailing market conditions and lower demand for carbon credits from Volvo Cars and third party OEMs. Sales of carbon credits increased by $27,141, or 100%, from nil for the year ended for the year ended December 31, 2019 to $27,141 for the year ended December 31, 2020 as this was the first year Polestar sold carbon credits. The carbon credit arrangement with Volvo Cars was executed in November 2020 as the year ended December 31, 2020 was Polestar’s first year selling vehicles and generating carbon credits.
Vehicle leasing revenue increased by $6,217, or 100%, from nil for the year ended December 31, 2020 to $6,217 for the year ended December 31, 2021. The increase was the result of Polestar entering into operating leases for the first time in 2021.
Other revenue increased by $3,866, or 79%, from $4,887 for the year ended December 31, 2020 to $8,753 for the year ended December 31, 2021. This increase was primarily the result of sales-based royalties received from Volvo Cars on sales of parts and accessories for Polestar vehicles which Volvo Cars began selling to Polestar customers during 2021. Other revenue decreased by $14,421, or 75%, from $19,308 for the year ended December 31, 2019 to $4,887 for the year ended December 31, 2020. The decrease was primarily the result of a reduction in research and development services provided to Volvo Cars during the year ended December 31, 2020 .
Cost of sales and gross profit
Cost of sales increased by $782,597, or 141%, from $553,724 for the year ended December 31, 2020 to $1,336,321 for the year ended December 31, 2021. This increase was primarily driven by expanded production and commercialization of Polestar 2 vehicles and a deterioration of the SEK/CNY exchange rate throughout 2021. Specifically, sales volume growth in the United States resulted in higher customs import duties and Polestar’s SEK/CNY transaction exchange losses on contract manufacturing invoices paid to Geely contributed to higher overall costs of sales. Cost of sales increased by $513,934, from $39,790 for the year ended December 31, 2019 to $553,724 for the year ended December 31, 2020. The increase in cost of sales was driven by deliveries of the Polestar 1 and Polestar 2. Prior to the year ended December 31, 2020, the Polestar 1 and Polestar 2 were only available for pre-order.
Gross profit decreased by $55,661, or 98%, from $56,521 for the year ended December 31, 2020 to $860 for the year ended December 31, 2021. This decrease was primarily due to a negative gross profit impact of $20,842 related to reduced sales of carbon credits, a negative gross profit impact of $9,553 related to reduced sales of
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