WASHINGTON -- The U.S. vehicle fleet's fuel efficiency in the 2019 model year fell to 24.9 mpg as more Americans bought larger SUVs and crossovers instead of cars.
The EPA said Wednesday that the fuel economy of the U.S. fleet fell by 0.2 mpg and most manufacturers are using banked credits to meet current compliance requirements. The EPA said since the 2004 model year, when the vehicle fleet averaged 19.3 mpg, fuel economy and emissions have improved in 12 out of 15 years.
Automakers with better performance than the requirements can sell excess credits to other automakers.
General Motors and Fiat Chrysler Automobiles both saw fleetwide fuel economy fall 0.5 mpg in the 2019 model year, with FCA at 21.2 mpg and GM at 22.5 mpg. Ford Motor Co. rose 0.1 mpg to 22.5 mpg.
The shift to larger vehicles was the biggest factor hurting fuel economy. In 2019, 44 percent of the fleet were cars and 56 percent were light-duty trucks, a category that includes SUVs, the highest percentage of trucks on record. SUVs alone account for almost 50 percent of U.S. vehicle production.
The EPA also said average vehicle weight and horsepower hit records in the 2019 and were on place to rise again in 2020. Horsepower is up 79 percent since 1975 for all vehicles.
The EPA also disclosed that through the 2019 model year, Tesla Inc. has sold 39.8 million megagrams in credits, while FCA has purchased 82.1 million credits -- the most of any automaker.
Honda Motor Co. has also sold 40 million credits and GM purchased 10.7 million credits.
Toyota Motor Corp. sold 33.8 million credits, while BMW and Daimler bought 5.5 million credits and 12.2 million respectively.
President-elect Joe Biden has vowed to reverse the Trump administration's rollback of Obama-era fuel economy requirements, while EPA Administrator Andrew Wheeler said the report "shows in detail how few auto manufactures were able to meet the unrealistic emissions standards set by the Obama Administration without resorting to purchasing emission credits."
The EPA also said that early projects suggest fuel economy will jump to 25.7 mpg in the 2020 model year, which would be a new record.