Motor race drivers in Australia are protected from litigation because of death or injury caused by accident during a race and are also protected from criminal charges, as long as they have obeyed rules laid down by the authorities involved in racing.
It is not the responsibility of the motor race driver to ensure the safety of the crowd, this is the responsibility of the track authority and the organisers of the event (who should have insurance for any incidents or accidents).
Troy Critchley was involved in an accident when his racing car skidded out of control at a charity event in the town of Selmer, Tennessee, and crashed into the crowd. He was doing a "burnout".
Six spectators aged 15-22 died and 22 other people, including a five year old boy, were injured.
Critchley has avoided jail by plea bargaining and has plead guilty to 28 charges of reckless simple assault.
I'm sure this wouldn't happen here in Australia - however, it depends on the conditions under which the "display" was held. Perhaps Troy should have checked that in the event of an accident he would be covered, it may be a very expensive lesson for him.