1989 Australian Touring Car Championship

The 1989 Australian Touring Car Championship was a CAMS sanctioned Australian motor racing title open to Group 3A Touring Cars. The championship, which was the 30th Australian Touring Car Championship, began on 5 March at Amaroo Park and ended on 9 July at Oran Park Raceway after eight rounds. The 1989 Australian Manufacturers' Championship was contested over the same eight round series.

The championship, which was promoted as the Shell Ultra Australian Touring Car Championship, was won by Dick Johnson driving a Ford Sierra RS500.Toyota won the Australian Manufacturers' Championship.

The following drivers and teams competed in the 1989 Australian Touring Car Championship.

Following on from their dominant 1988 championship 1-2, the Dick Johnson Racing Ford Sierra RS500 drivers Dick Johnson and John Bowe again finished 1-2 in the title race, winning the first six rounds with Johnson's fifth (and last) championship win equaling the record of Ian Geoghegan. Like Geoghegan, all of Dick Johnson's championships were won driving Fords.

The championship also saw long time Holden driver Peter Brock turn to Fords (after a year with BMW) in a bid to return to the top in Australia with two cars secured from British Sierra expert Andy Rouse for himself and Albury based driver Brad Jones. Brock's pole in Round 2 at Symmons Plains was his first touring car pole since the 1986 Sandown 500, while his win in the final round at Oran Park was his first ATCC win since 1986 and his first ever ATCC win in anything other than a Holden. Brock in his Mobil 1 Racing Sierra would prove to be the Shell team's most consistent challenger, finishing third in the championship, his highest placing since he finished third in 1985. Most observers felt that Brock adapted to the powerful Sierra's quicker than most, though he readily admitted his link with Rouse and the technical help he gave was a big factor in the Mobil teams revival. Also, unlike most of his fellow competitors when they started racing the Sierra's, Brock wasn't a stranger to racing turbocharged cars having raced a Porsche 956B at Silverstone and Le Mans in the 1984 World Sportscar Championship.

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