Mercedes fires a shot over the BMW M3’s bow with the new C63 AMG Of course the it has all the AMG goodness, from the hand-built V-8 engine to the upgraded brakes to the sport suspension. This new C-Class makes the leap to 60 mph in 4.3 seconds, thanks to V-8’s 451 horsepower and 443 lb.-ft. of torque. All the power flows through the new AMG Sportshift seven-speed transmission, which doesn’t up or downshift automatically, leaving the driver in complete control.