"The SL 55 AMG is fitted with the most powerful AMG engine to date. The all-new 5.5-litre, supercharged V8 makes for breathtaking acceleration, from 0 to 62.5 mph in only 4.7 seconds. The gearshift buttons, located on the rear of the AMG steering wheel spokes, allow for smooth and accessible gear changing. The AMG Speedshift program operates an automatic downshift function to boost the engine's braking effect, and ensures you're in the right gear at all times. This feature comes into its' own on tight corners and sharp bends. The SL 55's ABC (Active Body Control) has been calibrated to AMG specific parameters to match its performance."