A lot is being said about what we SHOULD be driving. Not a lot is being said about WHY we drive the vehicles we do.

Read interview:
http://www.hybridcars.com/laurie-david-interview.html

Last I checked, automakers are owned by shareholders who expect profits. Nobody can expect businesses to risk profitability and loss of market share by adopting a small-car (fuel-efficient) portfolio when the customer base doesn't want it.

Automakers sell what consumers want at the highest price they can. Their product portfolio will change only when consumers see a direct benefit. Gasoline is still not pricey enough to warrant this change.

Laurie David is talking about what we SHOULD do. I disagree with her logic. It is impossible to legislate consumer preferences.