GM is in the midst of a pivot to all-electric vehicles and sustainable energy practices, with plans to launch 30 new EV models globally by 2025, eliminate tailpipe emissions from its light-duty vehicle lineup by 2035, and reach carbon neutrality by 2040. However, in the meantime, a recent government study indicates that GM is one of the worst auto companies in the U.S. with regard to fuel economy.
According to the recent 2021 EPA Automotive Trends Report, GM’s average estimated real-world fuel economy increased from 22.2 mpg in 2015 to 23 mpg in 2020, placing it near the bottom of the list when compared to the rest of the automotive industry.
Ford tied with GM in terms of current real-world mpg estimates at 23 mpg in 2020, up from 22.8 mpg in 2015. Stellantis was at the very bottom of the list, with average fuel economy decreasing from 21.8 mpg to 21.3 mpg.
At the top of the list for internal combustion manufacturers was Honda, which raised its average fuel economy from 28.5 mpg to 29.1 mpg during the five-year interval. Subaru was second, going from 28.1 mpg to 28.5 mpg, while Hyundai was third, going from 27.5 mpg to 28.4 mpg.
The industry average increased from 24.6 mpg to 25.4 mpg. The report also listed the MPGe (miles per gallon equivalent) for electric-vehicle maker Tesla, which rose from 97.1 MPGe to 119.1 MPGe between 2015 and 2020.
What’s more, the report looked at CO2 emissions, indicating that GM decreased its average emissions from 399 grams per mile to 386 grams per mile. The industry average emissions decreased from 360 grams per mile to 349 grams per mile.
The EPA’s estimated figures are based on laboratory tests that aim to simulate a wide range of operating conditions, including both hot and cold weather, higher speeds, and fast acceleration, as may be encountered by the average driver.