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

| Entrant | Constructor_ | Chassis | Engine | Tyre | Driver | Rounds |
|---|---|---|---|---|---|---|
| Motor Racing Developments | Brabham - Ford | BT37 BT42 | Ford Cosworth DFV 3.0 V8 | G | Carlos Reutemann | All |
| Motor Racing Developments | Brabham - Ford | BT37 BT42 | Ford Cosworth DFV 3.0 V8 | G | Wilson Fittipaldi | All |
| Motor Racing Developments | Brabham - Ford | BT37 BT42 | Ford Cosworth DFV 3.0 V8 | G | Andrea de Adamich | 4-6, 8-9 |
| Motor Racing Developments | Brabham - Ford | BT37 BT42 | Ford Cosworth DFV 3.0 V8 | G | Rolf Stommelen | 11-14 |
| Motor Racing Developments | Brabham - Ford | BT37 BT42 | Ford Cosworth DFV 3.0 V8 | G | John Watson | 9, 15 |
| Yardley Team McLaren | McLaren - Ford | M19A M19C M23 | Ford Cosworth DFV 3.0 V8 | G | Denny Hulme | All |