Actual fuel economy of cars and light trucks: 1966-2019
Green Car Congress
JANUARY 7, 2021
No change between 1991 and 2004 (19.6 A modest increase between 2004 and 2008 (from 19.6 million} plug-in electric cars and light trucks that were sold in the United States through December 2019 were still on the road, they would represent only about 0.6% of all registered cars and light trucks in 2019.).
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