The 1972 Australian Manufacturers' Championship was a CAMS sanctioned national motor racing title for car manufacturers. It was contested over a five-round series. All rounds were open only to Group E Series Production Touring Cars.Entries were divided into four classes, split via "CP Units", where the engine capacity of the vehicle (in litres) was multiplied by the retail price of the vehicle (in dollars) to give a CP (Capacity Price) Units value for each model. Championship results were as follows.