The proposals are open for public comment until today July 25th, and your feedback can help ensure NHTSA’s new rules are best designed to keep our streets safe. Submit your comments to the federal register: https://www.federalregister.gov/documents/2023/05/26/2023-11201/new-car-assessment-program
Supposedly the cafe standards are based on the wheelbase of vehicles, so they started making vehicles larger to comply. With smaller cars it’s harder to meet the cafe standards.