1999 Grand Prix of Sonoma

The 1999 Grand Prix of Sonoma was the fourth round of the 1999 American Le Mans Series season. It took place at 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	Ford (Élan-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	Ford (Élan-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	Ford (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	Ford (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	?	-