The SL 550 may ride on the same 19-inch wheels, but they spin a lot faster with the turbocharged V8 engine under the hood developing 449 hp. Not much changes besides this jump in power, with the interior receiving ventilated multi-contour seats that include Airscarf neck-level heating and massage functionality. A hands-free power trunk lid is installed and the driver-assist suite is enhanced with an automatic parking assist system. You can add the Driver Assistance Package to round out the tech offering available to the SL-Class.
PRESAFE PLUS, Active Distance Assist DISTRONIC, DISTRONIC PLUS w/Steering Assist, PRESAFE Brake w/Collision Mitigation, BAS PLUS, Active Brake Assist w/Cross-Traffic Function, Blind Spot Assist, Active Lane Keeping Assist, Speed Limit Assist, PRESAFE PLUS