With most AMG models getting a new, hand-built, AMG-exclusive 6.3-liter V8, it comes as no surprise that the beautiful Mercedes-Benz CLS gets the treatment, too. Replacing the CLS55 AMG, the new CLS63 AMG’s engine makes more than 500 horsepower and 450 lb.-ft. of torque. Acceleration to 60 mph should take less than 4.5 seconds. Other upgrades include a new seven-speed AMG Speedshift transmission, AMG suspension, AMG brakes, AMG design, and AMG interior upgrades, including some kick-ass sport seats.