BMW makes great cars in every class (1 series, 3 series, etc.), but I feel that once an M is produced they need to make the vehicle that much more special. So things like a carbon fiber roof, nicer interior (maybe carbon fiber trim like the Audi's) should be in the top of the line, most expensive variant o(M cars). Otherwise, I don't think it is fair to have cheaper vehicles in the line with more features (i.e. kind of like the E92 M3 without having LED DRL's). You should get more for your money if you spend more. An 85k dollar M3/M4 should have these things like a carbon fiber roof.
