It seems that BMW is focusing on developing the improved versions of the M models, starting with the M4 GTS and CS. The math is simple – the more you pay, the more you get. The standard M models will be at the bottom followed by the Competition Package, the CS, and the GTS. Here we have a BMW M4 CS racing against the Porsche 911 Carrera GTS. See it below.
Visit: Motorsport Magazine