After blowing a tire, Allison's car spun around and the air rushing over the car caused it to create a low-pressure region over the car—just like an airplane's wing—and take flight. He took out a large section of protective fencing and came quite close to taking his own life as well as a handful of spectators. It was after this crash that the restrictor plates were installed on all cars that disrupt the airflow over the car should it turn around. Jetlife!