Sunday 15th August 1971
Jo Siffert took pole and the win for BRM at the Austrian Grand Prix. On lap 36, Stewart’s race ended with a violent accident – his left rear driveshaft broke and the wheel was torn off. He emerged unhurt to be greeted as World Champion following Ickx’s retirement. Francois Cevert was chasing down Siffert, but with 12 laps to go his gearbox exploded.