Story: the car ramped up the tire wall, then nose-dived into the turf and flipped lengthwise. The bolted-in roll cage didn't have big enough floor plates and they punched through the floor, completely failing to provide protection to the occupants! Somehow, neither driver nor passenger sustained injury!
Bolt in cage
Just another reason why you shuoldn't skimp on safety equipment if you plant to go on ANY track! Take a good look at pciture #8.