at the same time tracks also have a responsibility to make sure that cars meet certain requirements to be safe. Not sure if anybody remembers but at Sunshine years ago a guy died after loosing control of his car. Partlly his fault as he was drinking openly out there and his car had muffler tubing for a cage. The muffler tubing in his car was well known by everybody out there and a standing joke also among track personel. well nobody was laughing when it happened after you saw his car.