1975 Australian Manufacturers' Championship

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. * Round 1, Chesterfield 250, Adelaide International Raceway, South Australia, 24 August * Round 2, Sandown 250, Sandown, Victoria, 14 September * Round 3, Hardie Ferodo 1000, Mount Panorama, Bathurst, New South Wales, 6 October * Round 4, Rothmans 300, Surfers Paradise, Queensland, 9 November * Round 5, Phillip Island 500k, Phillip Island, Victoria, 23 November

1975 Australian Manufacturers' Championship

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. * Round 1, Chesterfield 250, Adelaide International Raceway, South Australia, 24 August * Round 2, Sandown 250, Sandown, Victoria, 14 September * Round 3, Hardie Ferodo 1000, Mount Panorama, Bathurst, New South Wales, 6 October * Round 4, Rothmans 300, Surfers Paradise, Queensland, 9 November * Round 5, Phillip Island 500k, Phillip Island, Victoria, 23 November