Mercedes SL500 turned into Carlsson CK50 The Germans know how to make cars but they also know hot to tune cars. The guys at Carlsson would like to take a chance and modify your Mercedes SL500 into a Carlsson CK50 (also known as a beast) with improved performances. First thing they did is adding a new electronic control unit (ECU) that will improve the output of the 5.5 liter V8 to produce 435hp (instead of the factory 388 hp) and a 600 Nm of torque. With these modifications and a new exhaus