Caterham Seven 310
Open air, nearly open wheeled, and ready for an open throttle, the Caterham Seven 310 might be the most fun you can have for the price. Born from the company's racing efforts, it's powered by a 1.6L Ford Sigma Ti-VCT engine, mated to a five-speed gearbox. Thanks to the aluminum-plated body with composite panels and other lightweight components, it moves from 0-60 in just 4.9 seconds and can hit a top speed of 127 mph. The interior is predictably spartan, but when you're having this much fun driving, you don't have time to stare at the dash.