The 1980 Australian Sports Sedan Championship was open to drivers of Sports Sedans complying with CAMS Group B regulations. The title was contested over an eleven-round series * Round 1, Oran Park Raceway, New South Wales, 23 March * Round 2, Winton Motor Raceway, Victoria, 4 May * Round 3, Amaroo Park, New South Wales, 25 May * Round 4, Wanneroo Park, Western Australia, 8 June * Round 5, Lakeside International Raceway, Queensland, 22 June * Round 6, Calder Park Raceway, Victoria, 3 August * Round 7, Surfers Paradise, Queensland, 31 August * Round 8, Symmons Plains, Tasmania, 21 September * Round 9, Baskerville, Tasmania, 12 October * Round 10, The Advertiser Sports Sedan Challenge, Adelaide International Raceway, South Australia, 19 October * Round 11, Sandown Raceway, Victoria