9. Lincoln LS V8
The early-2000s Lincoln LS V8 combined American luxury with genuine performance, thanks to its rear-wheel-drive layout and a potent Jaguar-derived V8 engine. Clad in understated sheet metal, the LS shocked those who underestimated its abilities at the stoplight. MotorTrend recognized its unique blend of refinement and surprising speed, making it a true sleeper from an unexpected source.