i did some donuts in a nice empty slick parking lot and was wondering what i could or ruined on my car? i was listening for weird noises and of course i found some but im sure they were always there. could a donut ruin a differential? im not worried about tires, i have a 4.10 LSD and it spins donuts in first no problem. I didn't rev it high and i didn't floor it but at the end of the donut the car was moving back words because of the momentum but the wheels were spinning forward how bad is that? cant a bmw handle a donut? this is a really stupid question but im just curious.