Focused on fuel economy

Optimizing vehicle fuel efficiency takes a combination of engineering solutions and driver behavior. In part one of this two-part series, AEI examines the technologies being employed. Part two, coming in the April 6 print edition, discusses drivers' impact on higher mpg.

Automakers could make greater headway in their quest to meet fuel-economy standards if consumers would be willing to give up some of the comfort and convenience features to which they have become accustomed.

But there are not a lot of consumers ready to forego an audio system, power windows, and air-conditioning in return for the personal benefit of lower fuel expenses, let alone for the communal benefits of energy independence and environmental protection.