1981 Brazilian Grand Prix
🇧🇷 Brazil Autódromo Internacional Nelson Piquet, Rio de Janeiro, Brazil Round 2 of 15
Constructors' Championship
| Pos | Team | Pts | Wins |
|---|---|---|---|
| 1 | Williams | 15 | 1 |
| 2 | Brabham | 4 | 0 |
| 3 | Alfa Romeo | 3 | 0 |
| 4 | Tyrrell | 2 | 0 |
| 5 | Theodore | 1 | 0 |
| — | Fittipaldi | 0 | 0 |
| — | Renault | 0 | 0 |
| — | Ensign | 0 | 0 |
| — | Ferrari | 0 | 0 |
| — | Ligier | 0 | 0 |
| — | ATS | 0 | 0 |
| — | Arrows | 0 | 0 |
| — | Osella | 0 | 0 |
| — | Team Lotus | 0 | 0 |
| — | McLaren | 0 | 0 |