As for Conservababble:
Having the government regulate fuel economy standards in the first place is bad. However, I would much rather have stuff like that be implemented on the state level. Ignoring the fact that something like this is a 10th Amendment issue, there's also the fact that getting crap legislation changed on a state level is going to be a lot easier to do than getting changes at the federal level.

Let California set higher standards. Let the idiot legislators and that RINO Arnold pass legislation that will drive up the cost of production for those states.