because both the consumer and manufacturers are too fucking stupid to get it on their own. And again I say, the A in CAFE stands for AVERAGE. You can still have some gas hogs, you just have to balance them out with higher efficiency models in other classes. Vettes get like 30mpg so don’t even whine about sports cars being on the road to extinction. If this keeps Suzy Q. Soccermom from buying a fucking land yacht to truck her one kid to and from school and her own fat ass to and from the mall, then good… fuck her!