1991 Formula One World Championship
The 1991 Formula One season was the 42nd edition of the championship. The champion was Ayrton Senna. McLaren won the constructors championship.
Drivers and constructors
| Entrant | Constructor | Chassis | Engine | Tyre | No | Driver | Rounds |
|---|---|---|---|---|---|---|---|
| Honda Marlboro McLaren | McLaren-Honda | MP4/6 | Honda RA121E 3.5 V12 | G | 1 | Ayrton Senna | All |
| 2 | Gerhard Berger | All | |||||
| Braun Tyrrell Honda | Tyrrell-Honda | 020 | Honda RA101E 3.5 V10 | P | 3 | Satoru Nakajima | All |
| 4 | Stefano Modena | All | |||||
| Canon Williams Team | Williams-Renault | FW14 | Renault RS3 3.5 V10 | G | 5 | Nigel Mansell | All |
| 6 | Riccardo Patrese | All | |||||
| Motor Racing Developments | Brabham-Yamaha | BT59YBT60Y | Yamaha OX99 3.5 V12 | P | 7 | Martin Brundle | All |
| 8 | Mark Blundell | All | |||||
| Footwork Grand Prix International | Footwork-Porsche | A11CFA12 | Porsche 3512 3.5 V12 | G | 9 | Michele Alboreto | 1–6 |
| 10 | Alex Caffi | 1–4 | |||||
| Stefan Johansson | 5–6 | ||||||
| Footwork-Ford | FA12C | Ford Cosworth DFR 3.5 V8 | 9 | Michele Alboreto | 7–16 | ||
| 10 | Stefan Johansson | 7–8 | |||||
| Alex Caffi | 9–16 | ||||||
| Team Lotus | Lotus-Judd | 102B | Judd EV 3.5 V8 | G | 11 | Mika Häkkinen | All |
| 12 | Julian Bailey | 1–4 | |||||
| Johnny Herbert | 5–8, 11, 13, 15–16 | ||||||
| Michael Bartels | 9–10, 12, 14 | ||||||
| Fondmetal | Fondmetal-Ford | FA1M-EFomet-1 | Ford Cosworth DFR 3.5 V8 | G | 14 | Olivier Grouillard | 1–13 |
| Gabriele Tarquini | 14–16 | ||||||
| Leyton House Racing | Leyton House-Ilmor | CG911 | Ilmor 2175A 3.5 V10 | G | 15 | Maurício Gugelmin | All |
| 16 | Ivan Capelli | 1–14 | |||||
| Karl Wendlinger | 15–16 | ||||||
| Automobiles Gonfaronnaises Sportives | AGS-Ford | JH25JH25BJH27 | Ford Cosworth DFR 3.5 V8 | G | 17 | Gabriele Tarquini | 1–13 |
| Olivier Grouillard | 14 | ||||||
| 18 | Stefan Johansson | 1–2 | |||||
| Fabrizio Barbazza | 3–14 | ||||||
| Camel Benetton Ford | Benetton-Ford | B190BB191 | Ford HBA4 3.5 V8 | P | 19 | Roberto Moreno | 1–11 |
| Michael Schumacher | 12–16 | ||||||
| 20 | Nelson Piquet | All | |||||
| Scuderia Italia | Dallara-Judd | F191 | Judd GV 3.5 V10 | P | 21 | Emanuele Pirro | All |
| 22 | JJ Lehto | All | |||||
| Minardi Team | Minardi-Ferrari | M191 | Ferrari 037 3.5 V12 | G | 23 | Pierluigi Martini | All |
| 24 | Gianni Morbidelli | 1–15 | |||||
| Roberto Moreno | 16 | ||||||
| Equipe Ligier Gitanes | Ligier-Lamborghini | JS35JS35B | Lamborghini 3512 3.5 V12 | G | 25 | Thierry Boutsen | All |
| 26 | Érik Comas | All | |||||
| Scuderia Ferrari | Ferrari | 642642/2643 | Ferrari 037 3.5 V12 | G | 27 | Alain Prost | 1–15 |
| Gianni Morbidelli | 16 | ||||||
| 28 | Jean Alesi | All | |||||
| Larrousse F1 | Lola-Ford | LC91 | Ford Cosworth DFR 3.5 V8 | G | 29 | Éric Bernard | 1–15 |
| Bertrand Gachot | 16 | ||||||
| 30 | Aguri Suzuki | All | |||||
| Coloni Racing | Coloni-Ford | C4 | Ford Cosworth DFR 3.5 V8 | G | 31 | Pedro Chaves | 1–13 |
| Naoki Hattori | 15–16 | ||||||
| Team 7Up Jordan | Jordan-Ford | 191 | Ford HBA4 3.5 V8 | G | 32 | Bertrand Gachot | 1–10 |
| Michael Schumacher | 11 | ||||||
| Roberto Moreno | 12–13 | ||||||
| Alessandro Zanardi | 14–16 | ||||||
| 33 | Andrea de Cesaris | All | |||||
| Modena Team | Lambo-Lamborghini | 291 | Lamborghini 3512 3.5 V12 | G | 34 | Nicola Larini | All |
| 35 | Eric van de Poele | All |