Gustav from m5board has taken the 2012 M5 for review on all possible environements: city driving, autobahn driving, track runs, standstill launch control etc.
The GT3 RS is known by enthousiats as the best handling Porsche on the track, from the grand variety of 911 models. The power output of the 3.8 liters high revving Boxer aspirated engine is only 450 HP against the 560 HP produced by the turbocharged V8 under the M5 hood, but is around 600 kg lighter than the M5.