Improving Automotive Efficiency

Research Report T942


John DeCicco and Marc Ross


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.