Australian Gold Star 1975
Reigning champion Max Stewart and his close rival Kevin Bartlett both bought new Lola T400s for 1975, but found Lola's new design baffling during the Tasman series and retreated to their older T330/332 Lolas for the last two races. Both tried again with the T400s in the Gold Star series and Stewart won the Australian GP in atrocious conditions at Surfers Paradise, but that was the only win for either of them until Bartlett won the final race of the season. Their problems left the door ajar for John McCormack, whose Elfin MR6 had been fitted with the latest Holden engine and was now very reliable, allowing the veteran to put together a string of solid results and regain his title by just five points from Johnny Walker, who had wisely retained his older Lola T330/T332.
The find of the season was Bruce Allison, who had acquired Kevin Bartlett's Lola T332 and took pole position at the Grand Prix. He would move to the US and then British series in the next two seasons.
The races
31 Aug 1975 > Australian Grand Prix at Surfers Paradise
14 Sep 1975 > Marlboro 100 at Sandown Park
21 Sep 1975 > Radio 2JJ Gold Star race at Oran Park
19 Oct 1975 > TAA Gold Star race at Calder
28 Nov 1975 > Phillip Island Classic Cup
1975 Australian Gold Star table
| 1 | John McCormack | Elfin MR6 - Repco Holden V8 | 27 pts | 2 wins |
| 2 | Johnnie Walker | Lola T330/T332 - Repco Holden V8 | 22 pts | 1 win |
| 3 | Max Stewart | Lola T400 - Chevrolet V8 | 19 pts | 1 win |
| 4 | Kevin Bartlett | Lola T400 - Chevrolet V8 | 17 pts | 1 win |
| 5 | John Leffler | Bowin P8 - Chevrolet V8 | 14 pts | |
| 6 | Bruce Allison | Lola T332 - Chevrolet V8 | 6 pts | |
| 7= | Paul Bernasconi | Lola T400 - Chevrolet V8 | 4 pts | |
| 7= | Ray Winter | (ANF2) 1.6-litre Mildren - Ford twin cam | 4 pts | |
| 9= | Chris Milton | McLaren M18/M22 - Chevrolet V8 | 3 pts | |
| 9= | Enno Buesselman | (ANF2) 1.6-litre Elfin 622 - Ford twin cam | 3 pts |
All cars are 5-litre ANF1 (F5000) cars unless otherwise noted.