We got a little snow the other day and I wanted to take my mustang out and do some donuts. Well I didn't have any problems spinning out. I had it in drive and I spun around and I ended up going backwards while I was still in drive. I sat there for a second because my car wouldn't go. Then I tuned off my car, restarted it, and I could shift again. It seems to be fine now. I was just wondering why I my car couldn't move and could I have broken something. I think their must be some safety feature that made it do that. Oh I have a 95 v6 mustang.