The rear upper right side control arm mount pulled through the body on mt LTW CSL. It started with a noise (rattle), then the bushing broke and was replaced. It wasn't noticed that the inset nuts welded into the hat had started to crack. At the next track event the welds broke. This allowed to arm to move which steered the car left under torque. BMW says they are un aware of any other failures. The cost to repair was $1,900.00. This is not the same suspension point that was in Oct. Roundel. If anyone esle has had this experience, please let me know. I am aware of several others. David Finch
opti_at_ptd.net