Hey anyone here get burned by letting a friend drive their M3? I MIGHT HAVE.. My friend and me, are headed to get some lunch, and he asks if he could drive. Normally, I'd say no, but he's like a father to me and was a highway patrolman for years, so I figured he'd take it easy, right? Well, he did, up until he decided to hit 60 mph in a parking lot and hit the handbrake... the wheels locked for a second. Could this have caused any damage? I checked the tires and didn't find any flat spots. Basically, I want to know what if any harm could this have done? Thanks.