has launched new Sedan for you, 2012 . The 2012 is an M3 GTS with four doors. This car isn’t called the M3 CRT Big Horsepower though, so let’s get to the things that make it lighter than a standard M3 sedan. Benefitting from new manufacturing processes developed for the carbon-intensive BMW i3 and i8 models coming in 2013, the M3 CRT has a hood that consists of two carbon-fiber sheets encasing an aramid composite honeycomb for added rigidity. As a result, it has the strength of a traditional steel hood with just a quarter of the weight. Compared to a normal M3’s aluminum piece, the weight is halved.