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.
Winners
Date Overall winner(s) Entrant Car Distance/Duration Race title Report IMSA GT Championship 1976 Jim Busby Busby Racing Porsche Carrera Coca-Cola Bottler's Weekend report 1977 David Hobbs McLaren North America BMW 320i Turbo report 1978 David Hobbs McLaren North America BMW 320i 3rd Annual Camel GT Challenge report 1979 Peter Gregg Peter Gregg Porsche 935/78 Sprite Grand Prix report 1980 John Fitzpatrick Dick Barbour Racing Porsche 935 K3/80 Datsun's Golden State Challenge Grand Prix report 1981 Klaus Ludwig Team Zakspeed-Roush Ford Mustang Turbo Datsun Camel GT report 1982 Klaus Ludwig Team Zakspeed-Roush Ford Mustang Turbo Sears Point Camel GT report 1983 Al Holbert Jim Trueman Holbert Racing March 83G-Porsche 3 hours Ford California Camel GT report 1984 Bill Whittington Blue Thunder Racing Team March 83G-Chevrolet Ford California Camel GT report 1985 Bob Wollek Bayside Disposal Racing Porsche 962 Ford California Grand Prix report 1986 Rob Dyson Price Cobb Dyson Racing Porsche 962 Ford California Grand Prix report 1987 Jochen Mass Bayside Motorsports Porsche 962 Ford California Grand Prix report 1988 Geoff Brabham Electramotive Engineering Nissan GTP ZX-T Lincoln-Mercury California Grand Prix report 1989 Geoff Brabham Electramotive Engineering Nissan GTP ZX-T Lincoln-Mercury California Grand Prix report 1990 Juan Manuel Fangio II All American Racers Eagle HF89-Toyota California Camel Grand Prix report 1991–1994: Not held 1995 James Weaver Dyson Racing Riley & Scott Mk III-Ford 1 hour, 45 minutes Apple Computer, Inc. presents the California Grand Prix report 1996 Wayne Taylor Scott Sharp Doyle Racing Riley & Scott Mk III-Oldsmobile 3 hours Toshiba California Grand Prix report 1997 Andy Wallace James Weaver Dyson Racing Riley & Scott Mk III-Ford 2 hours California Grand Prix report 1998: Not held American Le Mans Series 1999 JJ Lehto Steve Soper BMW Motorsport BMW V12 LMR 2 hours, 45 minutes Grand Prix of Sonoma presented by Toshiba report 2000 Allan McNish Rinaldo Capello Audi Sport North America Audi R8 2 hours, 45 minutes Grand Prix of Sonoma report 2001 Rinaldo Capello Tom Kristensen Audi Sport North America Audi R8 2 hours, 45 minutes X-Factor Grand Prix of Sonoma report 2002 David Brabham Jan Magnussen Panoz Motor Sports Panoz LMP 01 2 hours, 45 minutes Grand Prix of Sonoma presented by Foster's Lager report 2003 Butch Leitzinger James Weaver Dyson Racing Lola EX257-AER 2 hours, 45 minutes Infineon Grand Prix of Sonoma report 2004 JJ Lehto Marco Werner ADT Champion Racing Audi R8 2 hours, 45 minutes Infineon Grand Prix of Sonoma report 2005 Frank Biela Emanuele Pirro ADT Champion Racing Audi R8 2 hours, 45 minutes Infineon Grand Prix of Sonoma report Rolex Sports Car Series 2006 Scott Pruett Luis Díaz Chip Ganassi Racing with Felix Sabates Riley Mk XI-Lexus report 2007* Jon Fogarty Alex Gurney GAINSCO/Bob Stallings Racing Riley Mk XI-Pontiac Armed Forces Grand-Am 250 report 2008* Max Angelelli Michael Valiante SunTrust Racing Dallara DP01-Pontiac Armed Forces 250 report
*Daytona Prototypes only.
External links World Sports Racing Prototypes: IMSA archive Racing Sports Cars: Sears Point archive Ultimate Racing History: Sears Point archive