Originally Posted by lucid
A potential issue with timed autocross events is that the results are often published. However, the only thing that is published is the name of the driver and the type of car, and not a VIN. So, how would a dealer be able to prove that your car was in an autocross unless they can get your VIN from the event organizer? Plus, why would BMW even bother given autocross events are not all that hard on your M? If BMW starts going after people who enjoy their Ms in a responsible manner at an autocross, I would never buy a BMW again. I doubt they will do such a thing though.
One of the local dealers is actually a cosponsor of the BMWCCA autocrosses. In all my decades of autocross I've never had a breakdown related to AX, so I guess the risk is low. After all, we're not talking about Nissan or Sabaru here.