6. Mercedes ML 63 AMG
The Cadillac Escalade is one of the most common luxury SUVs around. Although it has a big and powerful V8 under the hood, nobody expects this enormous car to be as fast as it is. Interestingly, the guys from Hennessey decided to make the Escalade faster than the Camaro and almost as fast as the Corvette ZR1.
The HPE 800 kit includes a supercharger and over 30 various upgrades to the Escalade stock drivetrain. The result is a massive 805 HP beast that can reach 60 mph in a mind-blowing 3.7 seconds.