[2] The championship, which was sanctioned by the Confederation of Australian Motor Sport as an Australian title,[3] was contested over a ten-round series which began on 1 February 1998 at Sandown International Motor Raceway and ended on 2 August at Oran Park International Raceway.
The series was promoted as the "Shell Australian Touring Car Championship".
[4] The title, which was the 39th Australian Touring Car Championship, was won by Craig Lowndes.
[4] Points were awarded to the first twenty classified finishers in each race as follows: Race three at the Calder round was abandoned before the start due to water lying on the track after a late afternoon storm.
[9] The Cup was won by Lansvale Smash Repairs with the team's Holden Commodore (VS) driven by Trevor Ashby and Steve Reed.