Fuel Economy Tradeoffs Graphic (IMAGE) University of Washington Caption From 1975 to 1990, most of the benefit from fuel saving technologies went towards making cars more fuel efficient. From 1990 to 2009, a greater share of those potential savings were cancelled out by changes that made cars faster, bigger or more luxurious. Credit University of Washington Usage Restrictions With credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.