The 1975 Australian Manufacturers' Championship was a CAMS sanctioned national motor racing title for vehicles manufacturers. The championship was contested over a five round series.
Each round was a single race of 250 km distance or greater, open to Group C Touring Cars. Cars competed in four classes based on engine capacity:
For all rounds other than the Bathurst round, championship points were awarded on a 9-8-7-6-5-4-3-2-1 basis for the first nine places in each class. For the Bathurst round, championship points were awarded on an 18-16-14-12-10-8-6-4-2 basis for the first nine places in each class. Additional points were awarded at all rounds on a 4-3-2-1 basis for the first four outright places. Only the highest placed vehicle from each manufacturer was eligible to score points at any given round.
Results
Note: Only models which contributed to a manufacturer’s points total are shown in the above table.