Just wondering if switching to the setup in the 1M would be the way to go in future?
"Brake hardware is shared with the current M3, and consists of 14.2-inch cast-iron ventilated front discs, 13.8-inch ventilated rear discs and single-piston sliding calipers all around. This is a notable upgrade over the 13.3-inch front and 12.8-inch rear rotors on the 135i."
http://www.insideline.com/bmw/1-seri...-series-m.html