It's been said that the guy at the head of the burnout boxes had his hand up to hold on the burnouts.....he had NOT turned to signal a burnout. The starting line guys have to give the signal to the burnout box...they had NOT...clearly a screw up from the FC team.

The Mustang driver went back to the pits to remove what was left of his taillights, straightend and secured the rear bumper and then dealt with a bent rim. He did come back to qualifying
Hope his neck wasn't too sore the next day....that was quite a punch.