For the M2, M3 & M4 ( + F20 , F21 , F2, F23, F30 ,F31 , F32 , F36)
Carbon fiber, often called the black gold, is an ultimate High-Tech material. It is expensive (just ask your BMW dealer) and very labor intensive / complicated to produce. Carbon fiber is much stronger than steel and extremely light (eg Formula 1 Monocoque and suspension arms). In addition, a first quality carbon fiber has eye-catching optical properties. Every right-minded Motorsport enthusiast is familiar with this. We apply the same fine-meshed tissue structure and sizing of the threads as BMW.
,, Naked" Carbon-fiber