Originally Posted by Canaletto
Interesting, those don't look like the M Performance Brakes that are currently available for the 2 series, since they appear to be drilled instead of dimpled.
Looks like they may be the "BMW Performance Brake System"?
It is most likely the same calipers as the F3x and F8x with drilled rotors (maybe identical to the F8x). The F8x uses identical calipers to the F3x 2NH/M Performance brakes.