Originally Posted by Rated ///M
I'm guessing only a little bit. CF still costs a lot and if BMW used extensive amounts of it, it would push the price up significantly. The M3 is BMW's bread and butter and sells more then any other M car.(X5/X6 M excluded) They have to keep it at a specific price point.
M4 will probably use a lot of CFRP (as per i range) which is a lot more affordable than CF with similar weight benefits, M3 will not benefit from this (or not as much)