The 1990 Sandown 500 was an endurance race for touring cars complying with CAMS Group 3A regulations. The event was held at the Sandown Raceway near Melbourne, Australia on 9 September 1990. The scheduled race distance was 161 laps of the 3.10 km circuit, totaling 499 km.
Of the 27 entries which qualified for the event, 25 faced the starter.
The final results were:
| Position | Division | No. | Entrant | Drivers | Car | Laps |
|---|---|---|---|---|---|---|
| 1 | Div.1 | 35 | Peter Jackson Racing | Glenn Seton George Fury |
Ford Sierra RS500 | 161 |
| 2 | Div.1 | 6 | Mobil 1 Racing | Charlie O'Brien Peter Brock |
Ford Sierra RS500 | 161 |
| 3 | Div.1 | 28 | Playscape Racing | Kevin Waldock Mike Preston |
Ford Sierra RS500 | 158 |
| 4 | Div.1 | 05 | Mobil 1 Racing | Peter Brock Andrew Miedecke David Parsons |
Ford Sierra RS500 | 151 |
| 5 | Div.1 | 15 | Toyota Team Australia | John Smith Drew Price |
Toyota Supra Turbo A | 149 |
| 6 | Div.1 | 46 | Gary Willmington Performance | Gary Willmington Bryan Thomson |
Toyota Supra Turbo | 144 |
| 7 | Div.1 | 44 | Paul Trevathan | Paul Trevethan Andrew McDowell |
Holden VL Commodore SS Group A | 144 |
| 8 | Div.3 | 78 | Phoenix Motorsport | Geoff Full David Ratcliff |
Toyota Sprinter AE86 | 139 |
| 9 | Div.1 | 23 | Beaurepaires | Chris Lambden Greg Crick |
Nissan Skyline HR31 GTS-R | 137 |
| 10 | Div.1 | 19 | Car Trek Racing | Bob Jones Heather Spurle |
Holden VL Commodore SS Group A SV | 129 |
| 11 | Div.1 | 22 | Lusty Engineering | Graham Lusty Peter Janson |
Holden VL Commodore SS Group A SV | |
| DNF | Div.1 | 11 | Perkins Engineering | Larry Perkins Tomas Mezera |
Holden VL Commodore SS Group A SV | |
| DNF | Div.1 | 38 | Andrew Bagnall | Andrew Bagnall Robbie Francevic |
Ford Sierra RS500 | |
| NC | Div.3 | 74 | Phil Alexander Keith McCulloch |
Toyota Corolla | ||
| DNF | Div.1 | 9 | Allan Moffat Enterprises | Klaus Niedzwiedz Gregg Hansford |
Ford Sierra RS500 | |
| DNF | Div.1 | 36 | Peter Hudson Ian Clark Ian Carrig |
BMW 635 CSi | ||
| DNF | Div.3 | 71 | Toyota Team Australia | John Faulkner Neal Bates |
Toyota Corolla FX-GT AE92 | |
| DNF | Div.1 | 18 | Shell Ultra-Hi Racing | Jeff Allam John Bowe Paul Radisich |
Ford Sierra RS500 | |
| DNF | Div.1 | 14 | Netcomm | Murray Carter Matt Wacker |
Ford Sierra RS500 | |
| DNF | Div.3 | 75 | Bob Holden Motors | Dennis Rogers Llynden Reithmuller |
Toyota Corolla | |
| DNF | Div.3 | 70 | Toyota Dealer Team | Peter McKay Paul Stokell |
Toyota Corolla FX-GT AE92 | |
| DNF | Div.2 | 53 | Brian Bolwell Racing | Mike Twigden Brian Bolwell |
BMW 323i | |
| DNF | Div.1 | 16 | Holden Racing Team | Win Percy Neil Crompton |
Holden VL Commodore SS Group A SV | |
| DNF | Div.1 | 42 | Lusty Engineering | John Lusty Bernie Stack |
Holden VL Commodore SS Group A SV | |
| DNF | Div.1 | 17 | Shell Ultra Hi Racing | Dick Johnson John Bowe |
Ford Sierra RS500 | |
| DNS | Div.3 | 72 | David Sala | David Sala Richard Vorst |
Toyota Corolla | |
| DNS | Div.1 | 86 | Gemspares | Daryl Hendrick Joe Sommariva |
Holden VL Commodore SS Group A SV |
1990 Australian Touring Car season
Australian Motor Racing Year, 1990/91 Racing Car News, September 1990
| Preceded by 1989 .05 - 500 |
Sandown 500 1990 |
Succeeded by 1991 Don't Drink Drive Sandown 500 |