1981 ADELAIDE AEC R1 Group C Touring Cars

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Commentary from two of Australia's greats, Will Hagon & John Smailes all Credit ABC Sport
The 1981 Australian Endurance Championship was a CAMS sanctioned motor racing title for car manufacturers, contested with Group C Touring Cars. It was the 11th circuit racing manufacturers' championship title to be awarded by CAMS and the first to carry the Australian Endurance Championship name.[1]

http://en.wikipedia.org/wiki/1981_Aus...
Although the drivers' weren't credited with points, they were given points for the manufacturer of the car they were driving. Largely through the efforts of Peter Williamson and Graeme Bailey driving their Celica's to a Class C (1601 to 2000cc) win at each of the four rounds, Toyota were the winners of the Endurance Championship with a maximum of 36 points scored, from Ford in second with 27, and a three way tie for third between Holden, Mazda and Mitsubishi who totaled 24 points.