- Between 1980 and 2004 there were dramatic improvements in automobile technology and thus greatly improved engine efficiency
- However, this was focused towards making the cars larger and better performing rather than reducing fuel consumption
- Data based on US Environmental Protection Agency data for “light vehicles”.
SOURCE: Hakim, D., “E.P.A. Holds Back Report on Car Fuel Efficiency”, New York Times, July 28, 2005.
