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.

Teams and drivers

Team	Car	No.	Drivers	Rounds	Class
BMW Team Italy-Spain	BMW 320i	4	Alessandro Zanardi	1-4, 6
Lehtonen Motorsport	SEAT Toledo Cupra	19	Valle Mäkelä	1-2
JAS Motorsport	Honda Accord	27	Adriano de Micheli	1-3
Proteam Motorsport	BMW 320i	30	Stefano D'Aste	1-3
		31	Giuseppe Cirò	1-3
DB Motorsport	Alfa Romeo 156 GTA	51	Salvatore Tavano	All
		52	Andrea Larini	1-4, 6-7
GDL Racing	BMW 320i	53	Gianluca De Lorenzi	All
ZeroCinque Motorsport	BMW 320i	54	Stefano Valli	All
Scuderia del Girasole	SEAT Toledo Cupra	55	Alessandro Balzan	All
DB Motorsport	Alfa Romeo 156 GTA	56	Vitaliano Caldarelli	5
Proteam Motorsport	BMW 320i	57	Davide Roda	7
		58	Luca Rangoni	7
GR Asia	SEAT Toledo Cupra	59	Tom Coronel	7
Engstler Motorsport	BMW 320i	62	Franz Engstler	7
ZeroCinque Motorsport	BMW 320i	81	Giannantonio Pennino	4	SP
Errepi Racing	Alfa Romeo 147	82	Lorenzo Falessi	5,7	SP
ZeroCinque Motorsport	BMW 320i	83	Lorenzo Pasquinelli	5-7	SP

Race calendar and results

Round		Circuit	Date	Pole Position	Fastest Lap	Winning Driver	Winning Team
1	R1	Monza	10 April	Alessandro Zanardi	Alessandro Zanardi	Alessandro Zanardi	BMW Team Italy-Spain
	R2				Alessandro Zanardi	Alessandro Zanardi	BMW Team Italy-Spain
2	R1	Magny-Cours	1 May	Valle Mäkelä	Alessandro Zanardi	Alessandro Zanardi	BMW Team Italy-Spain
	R2				Valle Mäkelä	Giuseppe Cirò	Proteam Motorsport
3	R1	Imola	29 May	Adriano de Micheli	Alessandro Balzan	Alessandro Zanardi	BMW Team Italy-Spain
	R2				Alessandro Zanardi	Alessandro Zanardi	BMW Team Italy-Spain
4	R1	Mugello	3 July	Alessandro Zanardi	Gianluca De Lorenzi	Gianluca De Lorenzi	GDL Racing
	R2				Salvatore Tavano	Alessandro Zanardi	BMW Team Italy-Spain
5	R1	Magione	24 July	Salvatore Tavano	Gianluca De Lorenzi	Gianluca De Lorenzi	GDL Racing
	R2				Gianluca De Lorenzi	Alessandro Balzan	Scuderia del Girasole
6	R1	Varano	11 September	Alessandro Zanardi	Alessandro Zanardi	Alessandro Zanardi	BMW Team Italy-Spain
	R2				Alessandro Zanardi	Alessandro Zanardi	BMW Team Italy-Spain
7	R1	Vallelunga	16 October	Salvatore Tavano	Tom Coronel	Alessandro Balzan	Scuderia del Girasole
	R2				Gianluca De Lorenzi	Alessandro Balzan	Scuderia del Girasole

• Rounds 1–2 were run together with the WTCC.

Championship standings

• 12 results from 14 are valid for the championship

Drivers' Championship

Pos	Driver	Car	MON		MGN		IMO		MUG		MAG		VAR		VAL		Pts
1	Alessandro Zanardi	BMW	1	1	1	6	1	1	2	1	Ret	Ret	1	1			91
2	Gianluca De Lorenzi	BMW	7	Ret	4	3	4	3	1	2	1	2	4	Ret	3	2	79
3	Salvatore Tavano	Alfa Romeo	3	4	3	2	3	4	3	3	5	3	2	4	2	3	76 (85)
4	Alessandro Balzan	Seat	4	2	Ret	DNS	2	Ret	Ret	7	2	1	Ret	6	1	1	64
5	Stefano Valli	BMW	8	6	7	5	7	Ret	4	5	4	5	5	3	5	6	46 (47)
6	Andrea Larini	Alfa Romeo	5	7	Ret	Ret	6	5	Ret	4			3	2	4	5	41
7	Stefano D'Aste	BMW	2	8	Ret	Ret	5	2									21
8	Giuseppe Cirò	BMW	Ret	5	5	1	Ret	Ret									18
9	Adriano de Micheli	Honda	6	3	6	4	Ret	Ret									17
10	Lorenzo Pasquinelli	BMW									7	7	Ret	5	6	8	12
11	Vitaliano Caldarelli	Alfa Romeo									3	4					11
12	Valle Mäkelä	Seat	Ret	Ret	2	Ret											8
13	Lorenzo Falessi	Alfa Romeo									6	6			7	Ret	8
14	Giannantonio Pennino	BMW							5	6							7
15	Franz Engstler	BMW													8	4	6
16	Tom Coronel	Seat													Ret	7	2