7. Chevrolet Cobalt SS Turbo
The Chevrolet Cobalt SS Turbo slipped under the radar as a humble compact, but enthusiasts know its secret. With a turbocharged four-cylinder engine and finely tuned chassis, the Cobalt SS could embarrass much pricier sports cars both on the street and track. Its plain looks made victories even sweeter for those in the know. Jalopnik calls it one of GM’s best driver’s cars of its era.