The Active Body Control suspension system uses a coil spring, hydraulic cylinder and shock absorber at each wheel. The system senses the requirements of each wheel and adjusts for vibration, pitch, squat and roll. The driver can use the system to select a ride height, including Sport mode, which provides sharper handling. The SL-Class also uses electronic stability control, anti-lock brakes, electro-hydraulic braking and brake assist.
Standard equipment includes heated washer nozzles and rain-sensing wipers, dual chrome exhaust tips, heated rear window and mirrors, multifunction steering wheel and a sun sensor that adjusts the climate control when the sun is shining into the passenger compartment. The Easy-Pack feature tilts the stowed roof up a bit for trunk access.
Only 100 SL550 Night Editions will be built. They feature matte-finish designo magno black paint, black premium leather interior, 19-inch AMG 2-tone wheels, silver-painted front calipers with script logo and darkened headlights and taillights. The interior has chrome accents and arrow seat stitching, echoing the iconic arrow-shaped noses of Mercedes-Benz supercars.
The SL63 AMG remains nearly unchanged for 2011, with a 6.3L V8 tuned by AMG for 518 hp and a 0-60 time of 4.5 seconds. The interior gets the high-tech treatment, with carbon fiber trim and Napa leather seats. The MCT 7-speed transmission with race-start function optimizes acceleration with maximum power and minimum slip at the touch of a button.
The SL65 AMG boasts a 6.0L V12 engine making 604 hp and a whopping 738 lb-ft of torque. Options at this level are few, but include the AMG performance prep package for those who take track days very seriously.