Of course, BMW doesn't want the M2 CS to surpass its M4 CS sibling. The S55 unit powering the M4 CS delivers 460 hp, which has been downgraded to around 410 hp for the M2 CS according to sources, but that's still a significant upgrade over the standard car's 365 hp. If the M4 CS is anything to go by, the M2 CS will also benefit from an upgraded chassis with sports tuned suspension, and lighter, more aerodynamic components to complement the extra power, bringing the M2 closer to its arch rival, the Porsche Cayman GT4. Hopefully it won't be too long until we find out how BMW is planning to make one of the best M cars in years even better.