2005 Formula One season Drivers and constructors Drivers and constructors

| Entrant | Constructor_ | Chassis | Engine_ | Tyre | Driver | Rounds |
|---|---|---|---|---|---|---|
| Jordan Grand Prix | Jordan - Toyota | EJ15 EJ15B | Toyota RVX-05 | B | Tiago Monteiro | All |
| Jordan Grand Prix | Jordan - Toyota | EJ15 EJ15B | Toyota RVX-05 | B | Narain Karthikeyan | All |
| Minardi F1 Team | Minardi - Cosworth | PS04B PS05 | Cosworth CK2004 Cosworth TJ2005 | B | Patrick Friesacher | 1–11 |
| Minardi F1 Team | Minardi - Cosworth | PS04B PS05 | Cosworth CK2004 Cosworth TJ2005 | B | Robert Doornbos | 12–19 |
| Minardi F1 Team | Minardi - Cosworth | PS04B PS05 | Cosworth CK2004 Cosworth TJ2005 | B | Christijan Albers | All |