I believe the new standard calls for a 1.5% improvement per year, or about 40 mpg in 2025, which seems, on the surface, to be achievable. The prior standard called for a 5% improvement per year, leading to a requirement for 54mpg in 2025.
The Honda Accord hybrid achieves a mid 40's real world MPG, and while it's considered a full sized car as it just barely meets the criteria, it's much more closely aligned with a mid sized car.
However, the current environment is going to be tough for automakers. Development may not come as easily or as fast. The Ford Fusion hybrid may meet the requirements, none of the other recent Ford cars will. Bottom line, American manufacturers will have a tough time meeting the relaxed regulations.
Last edited by Cujet; 04/08/20 09:50 PM.