The 1974 Australian Manufacturers' Championship was a CAMS sanctioned Australian national motor racing title open to Group C Touring Cars. The championship, which was the fourth Australian Manufacturers' Championship, was won by General Motors-Holden's.
1974 Australian Manufacturers' Championship Wikipedia
The championship was contested over a five round series with each round being a single race staged over a minimum distance of 250 km.
Cars competed in four engine capacity classes.Up to and including 1300 cc
1301 to 2000 cc
2001 to 3000 cc
Over 3000 cc
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 at all rounds except the Bathurst round. For the Bathurst round only, championship points were awarded on an 18-16-14-12-10-8-6-4-2 basis for the first nine positions in each class plus 4-3-2-1 for the first four positions outright. Only the best placed car from each manufacturer was eligible to score points.
Note: Championship placings below second position are not known.