1981 Formula One season Drivers and constructors Drivers and constructors

| Constructor_ | Chassis | Engine | Tyres | Driver | Rounds |
|---|---|---|---|---|---|
| March - Ford | 811 | Ford Cosworth DFV 3.0 V8 | M A | Eliseo Salazar | 4-6 |
| March - Ford | 811 | Ford Cosworth DFV 3.0 V8 | M A | Eliseo Salazar | 1-3 |
| March - Ford | 811 | Ford Cosworth DFV 3.0 V8 | M A | Derek Daly | 4-6 |
| Fittipaldi - Ford | F8C | Ford Cosworth DFV 3.0 V8 | M A P | Keke Rosberg | 1-10, 12-15 |
| Fittipaldi - Ford | F8C | Ford Cosworth DFV 3.0 V8 | M A P | Chico Serra | 1-10, 12-15 |
| Alfa Romeo | 179B 179C 179D | Alfa Romeo 1260 3.0 V12 | M | Mario Andretti | All |
| Alfa Romeo | 179B 179C 179D | Alfa Romeo 1260 3.0 V12 | M | Bruno Giacomelli | All |
| Ligier - Matra | JS17 | Matra MS81 3.0 V12 | M | Jean-Pierre Jarier | 1-2 |