The 1974 Australian Manufacturers' Championship was an Australian motor racing competition for Group C Touring Cars.
[2] The championship was contested over a five round series with each round being a single race staged over a minimum distance of 250 km.
[1][3] Cars competed in four engine capacity classes.
[1] For all rounds except the Bathurst round, championship points were awarded on a 9-8-7-6-5-4-3-2-1 basis for the first nine positions in each class plus 4-3-2-1 for the first four positions outright.
[1] Only the best placed car from each manufacturer was eligible to score points.