Are you going Sedan or Coupe?
I like my M-sport car. Functionality wise, the only difference over a sport is the shifter. I dont think there is anything else it contributes. If you are going sedan, I'm not sure. Check the f30 forum as that is the new generation.
2009 335i 6MT M-Sport AW/CR Convertible
2002 Toyota 4Runner 4wd