Lawmakers boasted of more efficient vehicles, less dependence on foreign oil, cleaner fuel sources and punishment for oil companies that dared to engage in price gouging.

FORBES: Magazine Article

And by setting a single standard in place, rather than a tangle of overlapping and uncertain rules, auto companies will have the clear incentive to develop more efficient vehicles.

WHITEHOUSE: Promoting Cleaner, More Efficient Vehicles

Ford, GM and Chrysler were caught flat-footed when US consumers began switching en masse to smaller, more fuel efficient vehicles.

BBC: Fresh troubles for US car giants