1990 World Sportscar Championship
The 1990 World Sportscar Championship season was the 38th season of FIA World Sportscar Championship racing. It featured the 1990 FIA World Sports-Prototype Championship for Drivers and the 1990 FIA World Sports-Prototype Championship for Teams, both of which were contested over a series for cars running under the FIA's Group C formula. The series ran from 8 April 1990 to 7 October 1990 and was composed of nine races.
Schedule
| Rnd | Race | Circuit | Date |
| 1 |  Fuji Film Cup | Suzuka Circuit | 8 April |
| 2 |  Trofeo F. Caracciolo | Autodromo Nazionale Monza | 29 April |
| 3 |  Shell BRDC Empire Trophy | Silverstone Circuit | 20 May |
| 4 |  Coupes de Spa | Circuit de Spa-Francorchamps | 3 June |
| 5 |  Coupe de Dijon | Dijon-Prenois | 22 July |
| 6 |  ADAC Sportwagen Weltmeisterschaft | Nürburgring | 19 August |
| 7 | Shell Donington Trophy | Donington Park | 2 September |
| 8 |  Players Ltée Mondial | Circuit Gilles Villeneuve | 23 September |
| 9 |  Trofeo Hermanos Rodriguez | Autodromo Hermanos Rodriguez | 7 October |
Entries
Results and standings
Race results
The Montreal race was stopped before 75% distance was completed, therefore half points were awarded.| Rnd | Circuit | Winning Team | Results |
| Rnd | Circuit | Winning Drivers | Results |
| 1 | Suzuka |  No. 1 Team Sauber-Mercedes | Report |
| 1 | Suzuka | Jean-Louis Schlesser Mauro Baldi | Report |
| 2 | Monza | No. 1 Team Sauber-Mercedes | Report |
| 2 | Monza | Jean-Louis Schlesser Mauro Baldi | Report |
| 3 | Silverstone | No. 3 Silk Cut Jaguar | Report |
| 3 | Silverstone | Martin Brundle Alain Ferté | Report |
| 4 | Spa-Francorchamps | No. 2 Team Sauber-Mercedes | Report |
| 4 | Spa-Francorchamps | Jochen Mass Karl Wendlinger | Report |
| 5 | Dijon-Prenois | No. 1 Team Sauber-Mercedes | Report |
| 5 | Dijon-Prenois | Jean-Louis Schlesser Mauro Baldi | Report |
| 6 | Nürburgring | No. 1 Team Sauber-Mercedes | Report |
| 6 | Nürburgring | Jean-Louis Schlesser Mauro Baldi | Report |
| 7 | Donington | No. 1 Team Sauber-Mercedes | Report |
| 7 | Donington | Jean-Louis Schlesser Mauro Baldi | Report |
| 8 | Montreal | No. 1 Team Sauber-Mercedes | Report |
| 8 | Montreal | Jean-Louis Schlesser Mauro Baldi | Report |
| 9 | Mexico City | No. 2 Team Sauber-Mercedes | Report |
| 9 | Mexico City | Jochen Mass Michael Schumacher | Report |
| 1st | 2nd | 3rd | 4th | 5th | 6th |
| 9 | 6 | 4 | 3 | 2 | 1 |
In order to be classified for points, a team had to complete 75% of the winner's distance. Further, drivers were required to complete at least 30% of their car's total race distance to qualify for championship points.
Drivers' World Championship
Teams' World Championship
| Pos | Team | SUZ | MNZ | SIL | SPA | DIJ | NUR | DON | MON | MEX | Points |
| 1 | Team Sauber-Mercedes | 1 | 1 | Ret | 1 | 1 | 1 | 1 | 1 | 1 | 67.5 |
| 2 | Silk Cut Jaguar | Ret | 3 | 1 | 2 | 4 | 3 | DSQ | 15 | 3 | 30 |
| 3 | Nissan Motorsports International | 3 | 7 | NC | 3 | 3 | 5 | 4 | 2 | 2 | 26 |
| 4 | Spice Engineering | 18 | 6 | 3 | 4 | 6 | 7 | 3 | 21 | 10 | 13 |
| 5 | Joest Porsche Racing | 11 | 5 | 4 | 7 | 7 | 6 | 7 | 6 | 5 | 8.5 |
| 6 | Porsche Kremer Racing | 5 | 9 | 5 | 9 | 18 | 18 | 8 | 4 | 7 | 5.5 |
| 7 |  Brun Motorsport | 6 | 12 | 6 | 5 | 11 | 8 | 12 | 10 | Ret | 4 |
| 8 | Richard Lloyd Racing | 15 | 17 | 11 | 6 | Ret | Ret | 11 | 3 | Ret | 3 |
| 9 | Toyota Team Tom's | 4 | Ret | 12 | 18 | Ret | Ret | Ret | 7 | Ret | 3 |