| Race Title: | Grand Prix of Sonoma |
| Track Map: | Infineon (Sears Point) with emphasis on Long track.png |
| Venue: | Sonoma Raceway |
| First Race: | 1976 |
| Last Race: | 2008 |
| Most Wins Driver: | James Weaver (3) |
| Most Wins Team: | Dyson Racing (4) |
| Most Wins Manufacturer: | Porsche (7) |
The Grand Prix of Sonoma was a sports car race held at Sonoma Raceway (formerly Sears Point Raceway and Infineon Raceway) in Sonoma, California. It began in 1976 as an IMSA GT Championship race, before joining the American Le Mans Series from 1999 to 2005. It was a Grand-Am Rolex Sports Car Series race from 2006 to 2008.
| Date | Overall Winner(s) | Entrant | Car | Distance/Duration | Race Title | Report | |
|---|---|---|---|---|---|---|---|
| IMSA GT Championship | |||||||
| 1976 | 100miles | Coca-Cola Bottler's Weekend | report | ||||
| 1977 | 100miles | report | |||||
| 1978 | 100miles | 3rd Annual Camel GT Challenge | report | ||||
| 1979 | 100miles | Sprite Grand Prix | report | ||||
| 1980 | 100miles | Datsun's Golden State Challenge Grand Prix | report | ||||
| 1981 | 100miles | Datsun Camel GT | report | ||||
| 1982 | 100miles | Sears Point Camel GT | report | ||||
| 1983 | 3 hours | Ford California Camel GT | report | ||||
| 1984 | 100miles | Ford California Camel GT | report | ||||
| 1985 | 300km (200miles) | Ford California Grand Prix | report | ||||
| 1986 | 300km (200miles) | Ford California Grand Prix | report | ||||
| 1987 | 300km (200miles) | Ford California Grand Prix | report | ||||
| 1988 | 300km (200miles) | Lincoln-Mercury California Grand Prix | report | ||||
| 1989 | 300km (200miles) | Lincoln-Mercury California Grand Prix | report | ||||
| 1990 | 300km (200miles) | California Camel Grand Prix | report | ||||
| 1991-1994: Not held | |||||||
| 1995 | 1 hour, 45 minutes | Apple Computer, Inc. presents the California Grand Prix | report | ||||
| 1996 | 3 hours | Toshiba California Grand Prix | report | ||||
| 1997 | 2 hours | California Grand Prix | report | ||||
| 1998: Not held | |||||||
| American Le Mans Series | |||||||
| 1999 | 2 hours, 45 minutes | report | |||||
| 2000 | 2 hours, 45 minutes | Grand Prix of Sonoma | report | ||||
| 2001 | 2 hours, 45 minutes | X-Factor Grand Prix of Sonoma | report | ||||
| 2002 | 2 hours, 45 minutes | report | |||||
| 2003 | 2 hours, 45 minutes | Infineon Grand Prix of Sonoma | report | ||||
| 2004 | 2 hours, 45 minutes | Infineon Grand Prix of Sonoma | report | ||||
| 2005 | 2 hours, 45 minutes | Infineon Grand Prix of Sonoma | report | ||||
| Rolex Sports Car Series | |||||||
| 2006 | 400km (200miles) | report | |||||
| 2007* | 400km (200miles) | Armed Forces Grand-Am 250 | report | ||||
| 2008* | 250miles | Armed Forces 250 | report | ||||
*Daytona Prototypes only.