2006 Saleen Mustang S281 Convertible Front

The most famous and fanatic Mustang tuner takes a stab at Ford's new horse and ends up finding a few more. Starting from the 300 in the Mustang GT, Saleen ups it to 325 on his own, 400 with the aid of a supercharger. The bad news is that he'll charge $38,000 and $45,000, respectively, for these extra-strength Mustangs. The S281E and its "estimated 500 HP" serve as the final threat.