6. Ford Mustang SVT Cobra
Ford had a problem with the 1999 Cobra, and it turned out that the cars delivered significantly less power than the advertised 320 hp. So, in 2003, they decided to make amends with the SVT Cobra, which featured a supercharged V8 and 390 hp.
Even though the 390 hp was more than enough to beat the competitors, the 2003/4 was underrated, and its real power was almost 450 hp. The SVT Cobra was the first modern Mustang with independent rear suspension (the first for a production Mustang), insane power, and performance.