1973 Formula One season Championship drivers and constructors Championship drivers and constructors

| Entrant | Constructor_ | Chassis | Engine | Tyre | Driver | Rounds |
|---|---|---|---|---|---|---|
| Hesketh Racing | March - Ford | 731 | Ford Cosworth DFV 3.0 V8 | G | James Hunt | 6, 8-10, 12, 14-15 |
| Team Ensign | Ensign - Ford | N173 | Ford Cosworth DFV 3.0 V8 | F | Rikky von Opel | 8-10, 12-15 |