2005 Formula One season Drivers and constructors Drivers and constructors

| Entrant | Constructor_ | Chassis | Engine_ | Tyre | Driver | Rounds |
|---|---|---|---|---|---|---|
| Scuderia Ferrari Marlboro | Ferrari | F2004M F2005 | Ferrari 053 Ferrari 055 | B | Michael Schumacher | All |
| Scuderia Ferrari Marlboro | Ferrari | F2004M F2005 | Ferrari 053 Ferrari 055 | B | Rubens Barrichello | All |
| Lucky Strike BAR Honda | BAR - Honda | 007 | Honda RA005E | M | Jenson Button | 1–4, 7–19 |
| Lucky Strike BAR Honda | BAR - Honda | 007 | Honda RA005E | M | Takuma Sato | 1, 3–4, 7–19 |
| Lucky Strike BAR Honda | BAR - Honda | 007 | Honda RA005E | M | Anthony Davidson | 2 |
| Mild Seven Renault F1 Team | Renault | R25 | Renault RS25 | M | Fernando Alonso | All |
| Mild Seven Renault F1 Team | Renault | R25 | Renault RS25 | M | Giancarlo Fisichella | All |