The 1965 Armstrong 500 was the sixth running of the Bathurst 500 touring car race. It was held on 3 October 1965 at the Mount Panorama Circuit just outside Bathurst, New South Wales, Australia. The race was open to Australian assembled or manufactured vehicles and, for the first time, to imported vehicles, of which at least 100 examples and 250 examples respectively had been registered in Australia. Cars competed in four classes based on the purchase price of the vehicle in Australian pounds. Prize money was on offer only for class placings however the Armstrong Trophy was presented to the entrant of the outright winning car, this being the first time in the history of the event that there had been an official award for the outright winner.
The outright winning car was the Ford Cortina Mk.I GT500 entered by Fairfield Motors and driven by Barry Seton and emerging young driver Midge Bosworth. Second was another Ford car dealer entered Cortina driven mainly by Bruce McPhee with one lap driven by Barry Mulholland. Third, and one lap behind the two Cortina was the factory entered Morris Cooper S of Brian Foley and Peter Manton.
The smallest class was for cars under £920. It was made of Datsun 1300, Fiat 850, 1.5 litre Ford Cortina 220, Morris Mini de Luxe and Vauxhall Viva, although all the Datsun's were withdrawn prior to race start due to wheel cracking failures.
The £921 to £1,020 class featured 1.5 litre Ford Cortina 240, Isuzu Bellett, Morris Cooper, Renault R8 and Toyota Corona.