seeing as how m-performance brakes are NOT included in the m-sport, it is mainly just a trim package. i think the steering wheel is cool, it gets u access to estoril blue 2, but otherwise all cosmetic..
I guess you can get the staggered 255s on 18s which is nice and performance tires.
2014 335i RWD: ZMM, ZDA, ZDH, ZPP, ZTP, 2NH, 2TB, 5DL; Z4A MPPK; AW ext / VB int
2014 ML350: P01, R33, 297, 319, 846, 864, 889, 996; LB ext / AB int