With its teeny 3-cylinder engine and itty-bitty body, the ultra-mini Smart ForTwo is best suited for city driving. On Las Vegas streets it got 34 mpg, which was still well behind the Prius's unbeatable 52.4 mpg.
But in the other tests that involved high-speed driving, the ForTwo finished third behind the Jetta diesel and the Prius hybrid.
If fuel costs are considered, the ForTwo came in second. The Jetta had better total fuel economy, but diesel fuel is more expensive than even the premium gas required by the ForTwo.
NEXT: 2nd place: 2005 Volkswagen Jetta TDI