1999 Grand Prix of Sonoma

The 1999 Grand Prix of Sonoma was the fourth round of the

Sears Point Raceway, California

, on July 25, 1999.

Race results

Class winners in bold.

Pos	Class	No	Team	Drivers	Chassis	Tyre	Laps
Pos	Class	No	Team	Drivers	Engine	Tyre	Laps
1	LMP	42	BMW Motorsport Schnitzer Motorsport	JJ Lehto Steve Soper	BMW V12 LMR	M	97
1	LMP	42	BMW Motorsport Schnitzer Motorsport	JJ Lehto Steve Soper	BMW S70 6.0 L V12	M	97
2	LMP	1	Panoz Motor Sports	David Brabham Éric Bernard	Panoz LMP-1 Roadster-S	M	97
2	LMP	1	Panoz Motor Sports	David Brabham Éric Bernard	Yates ) 6.0 L V8	M	97
3	LMP	2	Panoz Motor Sports	Johnny O'Connell Jan Magnussen	Panoz LMP-1 Roadster-S	M	96
3	LMP	2	Panoz Motor Sports	Johnny O'Connell Jan Magnussen	Yates ) 6.0 L V8	M	96
4	LMP	20	Dyson Racing	Butch Leitzinger Elliott Forbes-Robinson	Riley & Scott Mk III	G	96
4	LMP	20	Dyson Racing	Butch Leitzinger Elliott Forbes-Robinson	Ford 5.0 L V8	G	96
5	LMP	43	BMW Motorsport Schnitzer Motorsport	Joachim Winkelhock Bill Auberlen	BMW V12 LMR	M	96
5	LMP	43	BMW Motorsport Schnitzer Motorsport	Joachim Winkelhock Bill Auberlen	BMW S70 6.0 L V12	M	96
6	LMP	0	Team Rafanelli SRL	Érik Comas Mimmo Schiattarella	Riley & Scott Mk III	Y	96
6	LMP	0	Team Rafanelli SRL	Érik Comas Mimmo Schiattarella	Judd GV4 4.0 L V10	Y	96
7	LMP	27	Price & Bscher	Thomas Bscher Pedro Lamy	BMW V12 LM	Y	95
7	LMP	27	Price & Bscher	Thomas Bscher Pedro Lamy	BMW S70 6.0 L V12	Y	95
8	LMP	36	Doran Lista Racing Jim Matthews Racing	Stefan Johansson Jim Matthews	Ferrari 333 SP	M	94
8	LMP	36	Doran Lista Racing Jim Matthews Racing	Stefan Johansson Jim Matthews	Ferrari F310E 4.0 L V12	M	94
9	LMP	27	Doran Lista Racing	Didier Theys Fredy Lienhard	Ferrari 333 SP	M	94
9	LMP	27	Doran Lista Racing	Didier Theys Fredy Lienhard	Ferrari F310E 4.0 L V12	M	94
10	LMP	11	Doyle-Risi Racing	Max Angelelli Didier de Radiguès	Ferrari 333 SP	P	94
10	LMP	11	Doyle-Risi Racing	Max Angelelli Didier de Radiguès	Ferrari F310E 4.0 L V12	P	94
11	LMP	74	Robinson Racing	George Robinson Jack Baldwin	Riley & Scott Mk III	?	93
11	LMP	74	Robinson Racing	George Robinson Jack Baldwin	Chevrolet 6.0 L V8	?	93
12	LMP	38	Champion Racing	Allan McNish Andy Pilgrim	Porsche 911 GT1 Evo	M	93
12	LMP	38	Champion Racing	Allan McNish Andy Pilgrim	Porsche 3.2 L Turbo Flat-6	M	93
13	LMP	16	Dyson Racing	Rob Dyson James Weaver	Riley & Scott Mk III	G	93
13	LMP	16	Dyson Racing	Rob Dyson James Weaver	Ford 5.0 L V8	G	93
14	LMP	18	Dollahite Racing	Bill Dollahite Mike Davies	Ferrari 333 SP	P	92
14	LMP	18	Dollahite Racing	Bill Dollahite Mike Davies	Ferrari F310E 4.0 L V12	P	92
15	LMP	15	Hybrid R&D	Chris Bingham Ross Bentley	Riley & Scott Mk III	Y	92
15	LMP	15	Hybrid R&D	Chris Bingham Ross Bentley	Ford 5.0 L V8	Y	92
16	LMP	8	Transatlantic Racing	Scott Schubot Rick Sutherland	Riley & Scott Mk III	G	90
16	LMP	8	Transatlantic Racing	Scott Schubot Rick Sutherland	Ford 5.0 L V8	G	90
17	GTS	91	Dodge Viper Team Oreca	Olivier Beretta David Donohue	Dodge Viper GTS-R	M	90
17	GTS	91	Dodge Viper Team Oreca	Olivier Beretta David Donohue	Dodge 8.0 L V10	M	90
18	GTS	3	Corvette Racing	Chris Kneifel Ron Fellows	Chevrolet Corvette C5-R	G	89
18	GTS	3	Corvette Racing	Chris Kneifel Ron Fellows	Chevrolet 6.0 L V8	G	89
19	GTS	92	Dodge Viper Team Oreca	Karl Wendlinger Tommy Archer	Dodge Viper GTS-R	M	89
19	GTS	92	Dodge Viper Team Oreca	Karl Wendlinger Tommy Archer	Dodge 8.0 L V10	M	89
20	GTS	55	Saleen/Allen Speedlab	Terry Borcheller Ron Johnson	Saleen Mustang SR	P	88
20	GTS	55	Saleen/Allen Speedlab	Terry Borcheller Ron Johnson	Ford 8.0 L V8	P	88
21	GTS	56	Martin Snow Racing	Martin Snow Kelly Collins	Porsche 911 GT2	M	88
21	GTS	56	Martin Snow Racing	Martin Snow Kelly Collins	Porsche 3.6 L Turbo Flat-6	M	88
22	GT	9	Prototype Technology Group	Boris Said Hans-Joachim Stuck	BMW M3	Y	88
22	GT	9	Prototype Technology Group	Boris Said Hans-Joachim Stuck	BMW 3.2 L I6	Y	88
23	GT	23	Manthey Racing Alex Job Racing	Dirk Müller Cort Wagner	Porsche 911 GT3-R	M	88
23	GT	23	Manthey Racing Alex Job Racing	Dirk Müller Cort Wagner	Porsche 3.6 L Flat-6	M	88
24	GTS	48	Freisinger Motorsport	Wolfgang Kaufmann Michel Ligonnet	Porsche 911 GT2	D	87
24	GTS	48	Freisinger Motorsport	Wolfgang Kaufmann Michel Ligonnet	Porsche 3.6 L Turbo Flat-6	D	87
25	GTS	61	Konrad Motorsport	Franz Konrad Bob Wollek	Porsche 911 GT2	D	87
25	GTS	61	Konrad Motorsport	Franz Konrad Bob Wollek	Porsche 3.6 L Turbo Flat-6	D	87
26	GT	10	Prototype Technology Group	Darren Law Johannes van Overbeek	BMW M3	Y	87
26	GT	10	Prototype Technology Group	Darren Law Johannes van Overbeek	BMW 3.2 L I6	Y	87
27	GT	22	Alex Job Racing	Mike Fitzgerald Darryl Havens	Porsche 911 Carrera RSR	Y	86
27	GT	22	Alex Job Racing	Mike Fitzgerald Darryl Havens	Porsche 3.8 L Flat-6	Y	86
28	GT	24	Alex Job Racing	Randy Pobst Jim Kelly	Porsche 911 Carrera RSR	Y	86
28	GT	24	Alex Job Racing	Randy Pobst Jim Kelly	Porsche 3.8 L Flat-6	Y	86
29	GT	02	Reiser Callas Rennsport	Doc Bundy David Murry	Porsche 911 Carrera RSR	P	86
29	GT	02	Reiser Callas Rennsport	Doc Bundy David Murry	Porsche 3.8 L Flat-6	P	86
30	GT	68	The Racer's Group	Kevin Buckler Vic Rice	Porsche 911 Carrera RSR	G	85
30	GT	68	The Racer's Group	Kevin Buckler Vic Rice	Porsche 3.8 L Flat-6	G	85
31	GT	03	Reiser Callas Rennsport	Grady Willingham Joel Reiser Craig Stanton	Porsche 911 Carrera RSR	P	85
31	GT	03	Reiser Callas Rennsport	Grady Willingham Joel Reiser Craig Stanton	Porsche 3.8 L Flat-6	P	85
32	GT	25	RWS Motorsport	Hans-Jörg Hofer Luca Riccitelli	Porsche 911 GT3-R	M	84
32	GT	25	RWS Motorsport	Hans-Jörg Hofer Luca Riccitelli	Porsche 3.6 L Flat-6	M	84
33	GTS	83	Chiefie Motorsports	Stefano Buttiero Zak Brown	Porsche 911 GT2	?	83
33	GTS	83	Chiefie Motorsports	Stefano Buttiero Zak Brown	Porsche 3.6 L Turbo Flat-6	?	83
34	GT	67	The Racer's Group	Michael Schrom Spencer Trenery	Porsche 911 Carrera RSR	G	83
34	GT	67	The Racer's Group	Michael Schrom Spencer Trenery	Porsche 3.8 L Flat-6	G	83
35	GT	88	Vanderhoof Racing	Joe Varde Tim Ralston	Porsche 911 Carrera RSR	?	82
35	GT	88	Vanderhoof Racing	Joe Varde Tim Ralston	Porsche 3.8 L Flat-6	?	82
36 DNF	GT	6	Prototype Technology Group	Peter Cunningham Mark Simo	BMW M3	Y	79
36 DNF	GT	6	Prototype Technology Group	Peter Cunningham Mark Simo	BMW 3.2 L I6	Y	79
37	GT	17	Contemporary Motorsports	Mike Conte Bruno Lambert	Porsche 911 Carrera RSR	?	78
37	GT	17	Contemporary Motorsports	Mike Conte Bruno Lambert	Porsche 3.8 L Flat-6	?	78
38 DNF	LMP	12	Doyle-Risi Racing	Alex Caffi Wayne Taylor	Ferrari 333 SP	P	73
38 DNF	LMP	12	Doyle-Risi Racing	Alex Caffi Wayne Taylor	Ferrari F310E 4.0 L V12	P	73
39	LMP	63	Downing Atlanta	Jim Downing Chris Ronson	Kudzu DLY	G	63
39	LMP	63	Downing Atlanta	Jim Downing Chris Ronson	Mazda R26B 2.6 L 4-Rotor	G	63
40 DNF	LMP	28	Intersport Racing	Jon Field Niclas Jönsson	Lola B98/10	G	38
40 DNF	LMP	28	Intersport Racing	Jon Field Niclas Jönsson	Roush ) 6.0 L V8	G	38
41 DNF	GT	76	Team ARE	Harry Rady Simon Sobrero	Porsche 911 Carrera RSR	Y	36
41 DNF	GT	76	Team ARE	Harry Rady Simon Sobrero	Porsche 3.8 L Flat-6	Y	36
42 DNF	GT	7	Prototype Technology Group	Brian Cunningham Christian Menzel	BMW M3	Y	2
42 DNF	GT	7	Prototype Technology Group	Brian Cunningham Christian Menzel	BMW 3.2 L I6	Y	2
DNQ	LMP	97	Team Cascadia	Ed Zabinski Shane Lewis	Lola B98/10	P	-
DNQ	LMP	97	Team Cascadia	Ed Zabinski Shane Lewis	Chevrolet 6.0 L V8	P	-
DNQ	LMP	29	Intersport Racing	Sam Brown Steve Romak John Mirro	Riley & Scott Mk III	G	-
DNQ	LMP	29	Intersport Racing	Sam Brown Steve Romak John Mirro	Roush ) 6.0 L V8	G	-
DNQ	LMP	60	Kopf Precision Products	Kris Wilson Tim Moser	Keiler KII	?	-
DNQ	LMP	60	Kopf Precision Products	Kris Wilson Tim Moser	Ford 5.0 L V8	?	-