DSC and even MDM just causes a lot of understeer on entry and then just kills any exit speed. For example, slow corner onto a long straight. You generally want to be on power sooner and you want to be slipping the car all the way to exit. MDM just interferes and kills any speed. This car does awesome with some judicious throttle steering and sliding.
Your missing out on half the fun if you keep MDM or DSC on. An e46 M3 is a great car on the track. An E9X M3 is a FUN car on the track.
Just my $.02.
2015 F34 328iX GT Glacier Silver
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red