Research Report

Improving Automotive Efficiency

January 1, 1994

This is a reprint of the December 1994 cover story from Scientific American. It provides a succinct and readable overview of energy losses in today's cars and explains the opportunities for efficiency improvement using available technologies. Also included in the "Amateur Scientist" feature from the same issue, which gives a more technical discussion of how one might measure the principal frictional energy losses in a car.

Research Report

Improving Automotive Efficiency

This Article Was About

Fuel Economy Transportation System Efficiency


John DeCicco
Marc Ross
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