Four varying levels are available to choose from, beginning with Stage I; a simple ECU software revision which sees output from the turbocharged 4.4-litre V8 jump from 418 kW (560 hp) and 680 Nm of torque to 456 kW (620 hp) and 720 Nm. Again, Stage II involves remapped software plus the fitment of new downpipes for 470 kW (640 hp) and 760 Nm.
Moving up the imaginary ladder, Stage III includes a carbon air intake by Gruppe M and a sport rear silencer with adjustable valve control, releasing 492 kW (670 hp) and 790 Nm. The final option gains an additional MHR performance box which unleashes in excess of 515 kW (700 hp) and 860 Nm.
Visually, this M6 Coupe sits lower to the ground thanks to a new coilover suspension kit and wears a set of three-piece forged ADV.1 Track Spec wheels measuring 9.5 and 10.5 × 21-inches.
[Source: Manhart Racing]