The 1990 Australian Drivers' Championship was an Australian motor racing title sanctioned by the Confederation of Australian Motor Sport and open to Formula Holden racing cars.[1] It was the 34th Australian Drivers' Championship[2] and the second to be contested by Formula Holden cars.[3] The championship winner was awarded the CAMS Gold Star.[1]
The championship was won by Simon Kane driving a Ralt RT21.[3]
The championship was contested over eight rounds with one race per round.[3]
| Round[3] | Race name | Circuit[3] | State | Date[3] | Winning driver[3] | Winning car[3] |
| 1 | Phillip Island | Victoria | 25 March | Simon Kane | Ralt RT21 | |
| 2 | Winton | Victoria | 8 April | John Briggs | Ralt RT21 | |
| 3 | Amaroo Park | New South Wales | 27 May | Mark Poole | Shrike 003 | |
| 4 | ACL Trophy[4] | Mallala | South Australia | 10 June | Mark Skaife | SPA |
| 5 | Oran Park | New South Wales | 19 August | Mark Skaife | SPA | |
| 6 | Sandown | Victoria | 9 September | Mark Poole | Shrike 003 | |
| 7 | Winton | Victoria | 7 October | Simon Kane | Ralt RT21 | |
| 8 | Thalgo Trophy[5] | Adelaide | South Australia | 3 November | Neil Crompton | Ralt RT20 |
The following teams and drivers competed in the 1990 Australian Drivers' Championship.
| Team | Car | No | Driver |
|---|---|---|---|
| Skaife Racing P/L | Spa FB001 | 3 |  Mark Skaife
|
| FAPM | Ralt RT20 | 4 | Roger Martin
|
| Clive Kane Photography | Ralt RT21 | 5 | Simon Kane
|
| Richard Davison | Ralt RT20 | 6 | Richard Davison
|
| Boylan Racing | Ralt RT20 | 7 | Neil Crompton
|
| John Briggs | Ralt RT21 | 9 | John Briggs
|
| Thalgo Racing Team | Spa FB002 | 11 | Tony Blanche Mark McLaughlin
|
| Ralt RT21 | 12 | Mark Larkham Tony Blanche
| |
| TAFE Team Motorsport | Shrike NB89H | 21 | Mark Poole
|
| Wayne Gardner
| |||
| David Mawer | Ralt RT21 | 27 | John Smith
|
| Hocking Motorsport | Hocking 901 | 38 | Sam Astuti Roger Martin
|
| March 87B | 73 | Mark McLaughlin Domenic Beninca Chris Hocking
| |
| Tenth Corporation P/L | Ralt RT20 | 39 | Drew Price
|
| Ralt RT4 | Paul Collins
| ||
| Ray Cutchie | Ralt RT4 | Ray Cutchie Brian Sampson
| |
| John Hermann | Liston BF3 | John Herrman
| |
| Mark Potter | Ralt RT4 | Mark Potter
|
Championship points were awarded on a 9–6–4–3–2–1 basis to the first six finishers[1] at each round. Each driver could retain only his/her best seven results, any other points being discarded.[1]
| Position[6] | Driver[7] | No.[3][4][5] | Car[3][4][5] | Entrant[4][5] | Phi[8] | Win[8] | Ama[8] | Mal[8] | Ora[8] | San[8] | Win[8] | Ade[8] | Points[6] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Simon Kane | 5 | Ralt RT21 | Clive Kane Photography | 9 | 6 | 6 | 4 | (4) | 6 | 9 | 6 | 46 |
| 2 | Mark Poole | 21 | Shrike 003 | TAFE Team Motorsport | 4 | 3 | 9 | 6 | 2 | 9 | 6 | – | 39 |
| 3 | Mark Skaife | 3 | Spa | Skaife Racing P/L | 2 | 1 | – | 9 | 9 | 2 | – | – | 23 |
| 4 | Neil Crompton | 7 | Ralt RT20 | Peter Boylan | – | 2 | 3 | 1 | 6 | – | – | 9 | 21 |
| Drew Price | 39 | Ralt RT20 | Tenth Corporation P/L | 6 | 4 | 4 | – | 3 | 4 | – | – | 21 | |
| 6 | John Briggs | 9 | Ralt RT21 | John Briggs | 3 | 9 | – | 3 | – | – | – | 2 | 17 |
| 7 | Mark McLaughlin | 73 &11 | March 87B Ralt RT21 Spa |
Chris Hocking Thalgo Racing Team |
– | – | – | 2 | 1 | – | 4 | 4 | 11 |
| 8 | Richard Davison | 6 | Ralt RT20 | Richard Davison | 1 | – | – | – | – | 3 | – | 3 | 7 |
| 9 | Chris Hocking | 38 | Hocking 901 | Chris Hocking | – | – | – | – | – | – | 3 | 1 | 4 |
| 10 | Tony Blanche | 11 &12 | Ralt RT21 | Thalgo Racing Team | – | – | – | – | – | 1 | 2 | – | 3 |
| 11 | Mark Larkham | 12 | Ralt RT21 | Thalgo Cosmetic Racing | – | – | 2 | – | – | – | – | – | 2 |
| 12 | Roger Martin | 4 | Ralt RT20 | FAPM | – | – | 1 | – | – | – | – | – | 1 |
