1991 Formula One season Drivers and constructors Drivers and constructors

| Entrant | Constructor_ | Chassis | Engine | Tyre | Driver | Rounds |
|---|---|---|---|---|---|---|
| Larrousse F1 | Lola - Ford | LC91 | Ford Cosworth DFR V8 | G | Éric Bernard | 1-15 |
| Larrousse F1 | Lola - Ford | LC91 | Ford Cosworth DFR V8 | G | Bertrand Gachot | 16 |
| Larrousse F1 | Lola - Ford | LC91 | Ford Cosworth DFR V8 | G | Aguri Suzuki | All |
| Coloni Racing | Coloni - Ford | C4 | Cosworth DFR V8 | G | Pedro Chaves | 1-13 |
| Coloni Racing | Coloni - Ford | C4 | Cosworth DFR V8 | G | Naoki Hattori | 15-16 |
| Team 7Up Jordan | Jordan - Ford | 191 | Ford HB4 V8 | G | Bertrand Gachot | 1-10 |
| Team 7Up Jordan | Jordan - Ford | 191 | Ford HB4 V8 | G | Michael Schumacher | 11 |
| Team 7Up Jordan | Jordan - Ford | 191 | Ford HB4 V8 | G | Roberto Moreno | 12-13 |