The British Motor Sports Association issued a statement saying it was "shocked and saddened."
"Sean was a hugely promising young racer who came through the junior formulas in Britain, before making a career in international sportscar racing," the statement said. "He is leading the 2013 Porsche Supercup championship and had won both the Nurburgring and Dubai 24 Hours this year."
Guy Edwards was one of the drivers who helped pull Niki Lauda from his burning vehicle during the 1976 Formula One German Grand Prix. Sean Edwards was recently involved in the production of the Ron Howard-directed movie "Rush," about the 1976 F1 season.
Calls to the Queensland Raceway were not returned.
