| Series | Driver | Season article | | Formula One World Championship | BRA}} Ayrton Senna | 1990 Formula One season |
| GBR}} McLaren-Honda |
| IndyCar World Series | USA}} Al Unser, Jr. | 1990 IndyCar season |
| American Racing Series | CAN}} Paul Tracy | 1990 American Racing Series season |
| International Formula 3000 | FRA}} Érik Comas | 1990 International Formula 3000 season |
| British Formula 3000 | PRT}} Pedro Chaves |
| Japanese Formula 3000 | JPN}} Kazuyoshi Hoshino | 1990 Japanese Formula 3000 season |
| EFDA Formula Opel Lotus Euroseries | BRA}} Rubens Barrichello |
| Australian Drivers' Championship | AUS}} Simon Kane | 1990 Australian Drivers' Championship |
| Atlantic Championship | USA}} Brian Till |
| USA}} Mark Dismore |
| Formula Three |
|---|
| All-Japan Formula Three Championship | JPN}} Naoki Hattori |
| British Formula Three Championship | FIN}} Mika Häkkinen | 1990 British Formula Three Championship |
| Formula 3 Sudamericana | BRA}} Christian Fittipaldi |
| French Formula Three Championship | FRA}} Éric Hélary |
| German Formula Three Championship | DEU}} Michael Schumacher | 1990 German Formula Three Championship |
| B|Champion of the B Class}}: {{flagicon|AUT}} Franz Binder |
| Italian Formula Three Championship | ITA}} Roberto Colciago |
| Formula 3 Sweden | SWE}} Niclas Jönsson |
| Formula Renault |
|---|
| Championnat de France Formule Renault | FRA}} Emmanuel Collard |
| British Formula Renault Championship | BRA}} Thomas Erdos |
| Formula Ford |
|---|
| Australian Formula Ford Championship | AUS}} Russell Ingall |
| Formula Ford Portugal | PRT}} Pedro Couceiro |
| Formula Ford Spain | ESP}} Pedro de la Rosa |
| Formula Ford 1600 Germany | DEU}} Ralf Druckenmüller |
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