Automakers to CAFE: ‘Not so fast…’

The Big 3 are chafing under the new CAFE requirements. I suppose I can’t blame them for pushing against regulations that present risks to their business models, but I have to wonder: can’t they see from the plummeting value of their used vehicles (because nobody wants to buy the older, less fuel-efficient vehicles any longer) that the market is primed for a new generation of more fuel-efficient vehicles?