1983 Australian Touring Car Championship

Brock's early season form and some uncharacteristic reliability problems saw him lagging in ninth place at the midway point in the championship after failing to finish at Calder and Symmons Plains thanks to gearbox failure both times, while finishing third at Sandown and ninth at Wanneroo after spinning out of the lead in a dice with Moffat and Fury (Moffat's win at Wanneroo caused a sensation due to his Formula One style mid-race pit stop for fuel).

Defending champion Dick Johnson battled season long with an ill-handling Ford XE Falcon and could only manage two distant 3rd placings at both Sandown and Wanneroo (where he led for the only time in the series) to finish a disappointing 6th in the championship, 94 points behind Moffat.

Moffat finished the final race in 3rd position, behind Brock and teammate Gregg Hansford, claiming the 1983 ATCC 6 points ahead of Fury in second place.

Controversy also reigned throughout the series with some teams such as the MHDT (Brock) and STP Roadways (Grice) claiming that Moffat was foxing during the championship and not racing as fast as he could in an effort to 'hoodwink' CAMS into believing the RX-7's, which ran the 1.2 Litre 12A rotary engine in the championship, needed the larger and more powerful (by some 30 bhp (22 kW; 30 PS)) 1.3 Litre 13B engine to be competitive against the V8's at Bathurst.

In a TV interview with Smailes immediately following his 2nd placing to Moffat, Peter Brock was informed of the new homologations and expressed his displeasure with CAMS for announcing it on television during the race and not letting those who the decision affected (the teams) know first.

[4] The fallout from CAMS decision led to both the Nissan and Roadways teams boycotting the final race of the series at Lakeside, though the official reason given by Nissan team manager Howard Marsden was that the Bluebirds needed further development for the upcoming 1983 Australian Endurance Championship which included both blue ribbon events, the Sandown 400 and the James Hardie 1000 at Bathurst.

Moffat only failed to finish once at Sandown (broken axle) and finished every other race on the podium, including four wins, four pole positions and five fastest laps resulting in new lap records at Sandown, Symmons Plains, Wanneroo, Surfers (shared with Brock) and Oran Park, while Fury's best were two seconds (Calder and Wanneroo) and one third at Symmons Plains.

One outcome from this series was that in the future turbocharged cars had their engine capacities multiplied for the purposes of class point score weightings, meaning that in the 1984 Australian Touring Car Championship, the Bluebirds would compete on an equal footing with the other outright class competitors (this actually took effect prior to the start of the 1983 Endurance Championship which started two months after the ATCC concluded).

Allan Moffat won the championship driving a Mazda RX-7 similar to that pictured above