The drive that hit the door should still run .. If they were watching the car backed up and put his door to the charging car ..accidental. you could see the guy get on the breaks was just to late for anything .
thats what iam thinking too the car that got kicked out was already in motion when he full speed there was nothing he could do that was a bad call on the people who run the derby for sure.... iam a huge derby fan along with my family running all the time and this happens alot bad call for sure...