thumb|Sonoman rata. Sonoman Grand Prix 2003 oli American Le Mans Series -kauden 2003 kolmas osakilpailu, joka ajettiin 27. heinäkuuta Sonoma Racewayn moottoriradalla Kaliforniassa Yhdysvalloissa.
Kilpailun voitti MG-Lolalla ajaneet Butch Leitzinger ja James Weaver.
Tulokset Sija Luokka Nro Talli Kuljettaja Auto Renkaat Kierrokset Moottori 1 LMP675 16 Dyson Racing Butch Leitzinger James Weaver MG-Lola EX257 102 MG (AER) XP20 2.0L Turbo I4 2 LMP900 1 Infineon Team Joest Marco Werner Frank Biela Audi R8 102 Audi 3.6L Turbo V8 3 LMP900 38 ADT Champion Racing Johnny Herbert JJ Lehto Audi R8 102 Audi 3.6L Turbo V8 4 LMP900 27 Doran Lista Racing Didier Theys Bill Auberlen Dallara SP1 102 Judd GV5 5.0L V10 5 LMP900 10 JML Team Panoz Olivier Beretta Gunnar Jeannette Panoz LMP01 Evo 101 Élan 6L8 6.0L V8 6 LMP900 11 JML Team Panoz Benjamin Leuenberger David Saelens Panoz LMP01 Evo 101 Élan 6L8 6.0L V8 7 LMP675 20 Dyson Racing Chris Dyson Andy Wallace MG-Lola EX257 100 MG (AER) XP20 2.0L Turbo I4 8 GTS 3 Corvette Racing Ron Fellows Johnny O'Connell Chevrolet Corvette C5-R 97 Chevrolet LS7-R 7.0L V8 9 GTS 4 Corvette Racing Kelly Collins Oliver Gavin Chevrolet Corvette C5-R 97 Chevrolet LS7-R 7.0L V8 10 GTS 80 Prodrive David Brabham Jan Magnussen Ferrari 550-GTS Maranello 96 Ferrari 5.9L V12 11 LMP900 30 Intersport Racing Clint Field Rick Sutherland Lola B2K/10B 94 Judd GV4 4.0L V10 12 GTS 88 Prodrive Tomáš Enge Peter Kox Ferrari 550-GTS Maranello 94 Ferrari 5.9L V12 13 GT 23 Alex Job Racing Lucas Luhr Sascha Maassen Porsche 911 GT3-RS 93 Porsche 3.6L Flat-6 14 GT 24 Alex Job Racing Jörg Bergmeister Timo Bernhard Porsche 911 GT3-RS 93 Porsche 3.6L Flat-6 15 GT 35 Risi Competizione Anthony Lazzaro Ralf Kelleners Ferrari 360 Modena GTC 93 Ferrari 3.6L V8 16 GT 66 The Racer's Group Kevin Buckler Cort Wagner Porsche 911 GT3-RS 93 Porsche 3.6L Flat-6 17 GT 31 Petersen Motorsport White Lightning Racing Craig Stanton Johnny Mowlem Porsche 911 GT3-RS 92 Porsche 3.6L Flat-6 18 LMP675 18 Essex Racing David McEntee Jason Workman Lola B2K/40 92 Nissan (AER) VQL 3.0L V6 19 GT 79 J3 Racing David Murry Justin Jackson Porsche 911 GT3-RS 91 Porsche 3.6L Flat-6 20 GT 43 Orbit Racing Leo Hindery Peter Baron Porsche 911 GT3-RS 91 Porsche 3.6L Flat-6 21 GT 67 The Racer's Group Michael Schrom Pierre Ehret Porsche 911 GT3-RS 90 Porsche 3.6L Flat-6 22 GTS 0 Team Olive Garden Emanuele Naspetti Mimmo Schiattarella Ferrari 550 Maranello 90 Ferrari 6.0L V12 23 GT 42 Orbit Racing Joe Policastro Joe Policastro, Jr. Porsche 911 GT3-RS 89 Porsche 3.6L Flat-6 24 GT 89 Inline Cunningham Racing Oswaldo Negri, Jr. Scott Bader Porsche 911 GT3-RS 87 Porsche 3.6L Flat-6 25 GT 28 JMB Racing USA Stéphane Grégoire Eliseo Salazar Ferrari 360 Modena GTC 87 Ferrari 3.6L V8 26 GT 61 P.K. Sport Keith Alexander Vic Rice Porsche 911 GT3-R 87 Porsche 3.6L Flat-6 27 GT 63 ACEMCO Motorsports Terry Borcheller Shane Lewis Ferrari 360 Modena GTC 87 Ferrari 3.6L V8 28 GT 68 The Racer's Group Marc Bunting Chris Gleason Porsche 911 GT3-RS 81 Porsche 3.6L Flat-6 29DNF GT 60 P.K. Sport Robin Liddell Alex Davison Porsche 911 GT3-RS 72 Porsche 3.6L Flat-6 30DNF GTS 71 Carsport America Aaron Povoledo Jean-Philippe Belloc Dodge Viper GTS-R 71 Dodge 8.0L V10 31DNF LMP900 12 American Spirit Racing Michael Lewis Tomy Drissi Riley & Scott Mk III C 45 Lincoln (Élan) 5.0L V8 32DNF GT 33 ZIP Racing Andy Lally Spencer Pumpelly Porsche 911 GT3-RS 44 Porsche 3.6L Flat-6 33DNF GT 29 JMB Racing USA Andrea Garbagnati Ludovico Manfredi Ferrari 360 Modena GTC 31 Ferrari 3.6L V8 34DNF GT 03 Hyper Sport Joe Foster Brad Nyberg Rick Skelton Panoz Esperante GT-LM 28 Élan 5.0L V8 35DNF LMP675 56 Team Bucknum Racing Jeff Bucknum Bryan Willman Chris McMurry Pilbeam MP91 24 Willman (JPX) 3.4L V6 DNS LMP675 37 Intersport Racing Jon Field Duncan Dayton MG-Lola EX257 - MG (AER) XP20 2.0L Turbo I4
Luokka:Sonoman Grand Prix Luokka:American Le Mans Series -kausi 2003