In 2010 the guys from G-Power have released a special program for the BMW M3. Today, the G-Power has come with an evolution of that package dubbed GT2 R. The Bavarian model now features 720 horsepower at 5.900 rpm and 700 Nm peek of torque at 5.900 rpm. 

In these conditions, the car can sprint from stand still to 100 km/h in 3.7 seconds while the 0 – 200 km/h is done in 9.5 seconds. The top speed announced by the G-Power is clocked at 330 km/h. 

All these figures were achieved thanks to a new SK II supercharged system and with an increased displacement from 4.0 liters to 4.6 liters. The cooling system also was modified while the exterior package gives you the impression that you are on the tack. 

Source: WCF