Ironically: US EPA Cafe standards drive the increasing vehicle size. https://www.meche.engineering.cmu.edu/_files/images/research-groups/whitefoot-group/WS-Foo

Ironically: US EPA Cafe standards drive the increasing vehicle size. https://www.meche.engineering.cmu.edu/_files/images/research-groups/whitefoot-group/WS-FootprintFuelEconomy-EP.pdf https://www.meche.engineering.cmu.edu/_files/images/research... The cheapest way to meet the EPA MPG requirements is to INCREASE the vehicle wheelbase and make it larger. This is much easier than making it lighter or adding fuel efficient engines and technology. Plus, Americans have shown a preference for larger cars. It's a win-win until people can't afford the tin