 After being tagged by Peter Snowdon's Aston Martin Abbott struck the barriers on the outside of the circuit between Old Hall and Cascades corners at unabated speed.The car flipped several times end over end, clearing the safety barriers, before coming to rest upside down where it burst into flames.The fire was caused by the roof skin being ripped off in the force of the accident, in the process this also ripped off the fuel filler pipes from the fuel tank.