For 1985 the manufacturers’ title was again renamed, now becoming the Australian Manufacturers' Championship. The dual Australian Endurance Championship / Australian Manufacturers' Championship titles were contested in both 1985 and 1986 over a series of endurance races for cars complying with Australian Touring Car regulations, which were based on International Group A. No Australian Endurance Championship was awarded in the years from 1987 to 1989, however the Australian Manufacturers' Championship continued, now contested over the same series of sprint races as the Australian Touring Car Championship.