Truth is, you can't race it

The BMW M3 CS is a racecar for the street. Just for the street. As Truth About Cars exposes, the little black box in the car records the time, date and shift points so you can't say, "I swear I never raced it on a track." If you're caught racing, the warranty is void. So you have the Competition Sport, that is most at home on track, destined to never truly be there. That is unless you really don't care about BMW backing you. Sounds like a hell of a ride, but a monster as a daily driver.