The 2005 Campionato Italiano Superturismo Season was the fourth season of the Italian Superturismo Championship since its recreation in 2002. It was won by well-known former Formula One and CART driver Alessandro Zanardi.
| Driver | Team | Car |
|---|---|---|
| Salvatore Tavano | DB Motorsport | Alfa Romeo 156 GTA |
| Andrea Larini | DB Motorsport | Alfa Romeo 156 GTA |
| Vitaliano Caldarelli | DB Motorsport | Alfa Romeo 156 GTA |
| Alessandro Balzan | Scuderia del Girasole | Alfa Romeo 156 GTA |
| Lorenzo Falessi | Errepi Racing | Alfa Romeo 147 |
| Alessandro Zanardi | BMW Team Italy | BMW 320i |
| Gianluca de Lorenzi | GDL Racing | BMW 320i |
| Lorenzo Pasquinelli | ZeroCinque Motorsport | BMW 320i |
| Giannantonio Pennino | ZeroCinque Motorsport | BMW 320i |
| Stefano Valli | ZeroCinque Motorsport | BMW 320i |
| Stefano D'Aste | Proteam Motorsport | BMW 320i |
| Giuseppe Cirò | Proteam Motorsport | BMW 320i |
| Franz Engstler | Engstler Motorsport | BMW 320i |
| Adriano de Micheli | JAS Motorsport | Honda Accord |
| Valle Mäkelä | Lethonen Motorsport | SEAT Toledo Cupra |
| Tom Coronel | GR Asia | SEAT Toledo Cupra |
| Round | Circuit | Date |
|---|---|---|
| 1 2 |
Monza | 10 April |
| 3 4 |
Magny-Cours | 1 May |
| 5 6 |
Imola | 29 May |
| 7 8 |
Mugello | 3 July |
| 9 10 |
Magione | 24 July |
| 11 12 |
Varano | 11 September |
| 13 14 |
Vallelunga | 16 October |
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