Driving fun and fuel economy aren't always oxymorons
8th: 2008 Mitsubishi Eclipse Spyder – $25,699 base price
The Mitsubishi Eclipse has moved far from its roots as a lightweight sporty tourer. Still, even with its added mass, the convertible Spyder manages to get good gas mileage thanks to its manual transmission and four-cylinder engine. Technically, its gas mileage is below the preceding Porsches, but since it drinks regular instead of premium, your annual fuel cost is lower.