Having the premiere at Geneva Motor Show Carlsson C225 Mercedes SL600 is equipped with a 6.0 liter V12 Bi-Turbo engine which was modified to output 753 horsepower (554 kW) and an incredible 1.320 Nm of torque at 3750 rpm. The thing is that they limited those 1.320 Nm of Carlsson’s C25 Mercedes SL600 to 1.150