From article by David Shepardson and Christina Rogers of The Detroit News:
"A government-imposed tax hike, Akerson believes, will prompt more people to buy small cars and do more good for the environment than forcing automakers to comply with higher gas-mileage standards."
With a 50 cent to $1 gas tax per gallon increase, Akerson states, "people will start buying more Cruzes and they will start buying less Suburbans."