1966 Formula One season Teams and drivers Teams and drivers

| Entrant | Constructor_ | Chassis | Engine | Tyre | Driver | Rounds |
|---|---|---|---|---|---|---|
| Reg Parnell Racing | Lotus - BRM | 25 | BRM P56 2.0 V8 BRM P60 1.9 V8 | F | Mike Spence | All |
| Reg Parnell Racing | Ferrari | 246 | Ferrari 228 2.4 V6 | F | Giancarlo Baghetti | 7 |
| Brabham Racing Organisation | Brabham - Repco | BT19 BT20 | Repco 620 3.0 V8 | G | Jack Brabham | All |
| Brabham Racing Organisation | Brabham - Repco | BT19 BT20 | Repco 620 3.0 V8 | G | Denny Hulme | 3–9 |
| Brabham Racing Organisation | Brabham - Climax | BT22 | Climax FPF 2.8 L4 | G | Denny Hulme | 1–2 |
| Brabham Racing Organisation | Brabham - Climax | BT22 | Climax FPF 2.8 L4 | G | Chris Irwin | 4 |
| Cooper Car Company | Cooper - Maserati | T81 | Maserati 9/F1 3.0 V12 | D | Richie Ginther | 1–2 |