Official Entrants - Le Mans 2003
(This was the last update I made before the first practice session)
| No | Team | Car | Drivers |
| 4 | Riley & Scott Racing | Riley & Scott Mk IIIC | Marc Goossens/Jim Matthews/Christophe Tinseau |
| 5 | Audi Sport Japan Team Goh | Audi R8 | Jan Magnussen/Seiji Ara/Marco Werner |
| 6 | Champion Racing/Dave Maraj | Audi R8 | Stefan Johansson/Emanuelle Pirro/Jyrki Jarvilehto |
| 9 | Kondo Racing | Dome S101 | Masahiko Kondo/Ukyo Katayama/Francois Migault |
| 10 | Arena International Motorsports | Audi R8 | Perry McCarthy/Mika Salo/Frank Biela |
| 11 | JML Team Panoz | Panoz LMP-01 | Olivier Beretta/Max Papis/Gunnar Jeanette |
| 12 | JML Team Panoz | Panoz LMP-01 | Benjamin Leuenberger/Scott Maxwell/David Saelens |
| 13 | Courage Competition | Courage C60JX | Jonathan Cochet/Stephan Gregoire/Jean-Marc Gounon |
| 14 | Team Nasamax | Reynard 01Q | Roman Dumas/Robbie Stirling/Werner Lupberger |
| 15 | Racing for Holland | Dome S101 | Jan Lammers/John Bosch/Andy Wallace |
| 16 | Racing for Holland | Dome S101 | Beppe Gabbiani/Felipe Ortiz/Tristan Gommendy |
| 17 | Pescarolo Sport | Courage C60 | Jean-Christophe Boullion/Franck Lagorce/Stephane Sarrazin |
| 18 | Pescarolo Sport | Courage C60 | Soheil Ayari/Eric Helary/Nicolas Minassian |
| 19 | Automotive Durango SRL | Durango | Jean-Bernard Bouvet/Sylvain Boulay/Michele Rugolo |
| 20 | Lister Racing | Lister LMP | Jamie Campbell-Walker/Nathan Kinch/Vincent Vosse |
| 21 | Edouard Sezionale | Norma M2000-02 | Edouard Sezionale/Patrice Roussel/Lucas Lasserre |
| 7 | Team Bentley | Bentley EXP Speed 8 | Guy Smith/Rinaldo Capello/Tom Kristensen |
| 8 | Team Bentley | Bentley EXP Speed 8 | Mark Blundell/Johnny Herbert/David Brabham |
| 23 | Team Bucknum Racing | Pilbeam JPX | Jeff Bucknum/Chris McMurry/Bryan Willman |
| 24 | Rachel Welter Racing | WR Peugeot | Yojiro Terada/Olivier Porta/Gavin Pickering |
| 25 | Gerard Welter Racing | WR | Bastien Briere/Stephane Daoudi/Jean-Rene de Fournoux |
| 26 | RN Motorsport | DBA4-03S | John Nielsen/Hayanari Shimoda/Caspar Elgaard |
| 27 | Intersport Racing | MG Lola EX-257 | Duncan Dayton/John Field/Rick Sutherland |
| 29 | Noel Del Bello | Reynard 2KQ | Jean-Luc Maury-Laribiere/Christophe Pillon/Didier Andre |
| 31 | Courage Competition | Courage C65 | Philippe Alliott/David Hallyday/Carl Rosenblad |
| 50 | Corvette Racing | Corvette C5-R | Andy Pilgrim/Kelly Collins/Oliver Gavin |
| 53 | Corvette Racing | Corvette C5-R | Ron Fellows/Franck Freon/Johnny O'Connell |
| 61 | Carsport America | Pagani Zonda C12 | Mike Hezemans/Anthony Kumpen/David Hart |
| 64 | Graham Nash Motorsport | Saleen S7-R | Pedro Chaves/Mike Newton/Tommy Erdos |
| 66 | Konrad Motorsport | Saleen S7-R | Toni Seiler/Franz Konrad/Walter Brun |
| 68 | Scorp Motorsport Communication | Chrysler Viper GTS-R | Louis Marques/Christian Laveille/Rene Metge |
| 72 | Luc Alphand Adventures | Ferrari 550 Maranello | Luc Alphand/Jerome Policand/Frederic Dor |
| 80 | Prodrive/Veloqx Motorsport | Ferrari 550 Maranello | Kelvin Burt/Darren Turner/Anthony Davidson |
| 86 | Larbre Competition | Chrysler Viper GTS-R | Christophe Bouchut/Patrice Goueslard/S. Zaccha |
| 88 | Prodrive/Veloqx Motorsport | Ferrari 550 Maranello | Tomas Enge/Peter Kox/Jamie Davies |
| 70 | JMB Racing | Ferrari 360 Modena | Fabio Babini/Fabrizio de Simone/David Terrien |
| 75 | Thierry Perrier | Porsche 996 GT3-RS | Nigel Smith/Ian Khan/Michel Neugarten |
| 77 | Team Taisan Advan | Porsche 996 GT3-RS | Atsushi Yogo/Kazuyuki Nishizawa/Akira Iida |
| 78 | PK Sport | Porsche 996 GT3-RS | Piers Masarati/Dave Warnock/Robin Liddell |
| 81 | The Racers Group | Porsche 996 GT3-RS | Kevin Buckler/Timo Bernhard/Jorg Bergmeister |
| 83 | Seikel Motorsport | Porsche 996 GT3-RS | David Shep/Tony Burgess/John Lloyd |
| 84 | T2M | Porsche 996 GT3-RS | Vanina Ickx/Patrick Bourdais/Roland Berville |
| 85 | Racing Team Holland | Spyker C8 Double 12R | Norman Simon/Hans Hugenholtz/Tom Coronel |
| 87 | Orbit Racing | Porsche 996 GT3-RS | Peter Baron/Leo Hindery/Marc Lieb |
| 91 | Chamberlain/TVR | TVR Tuscan Rs | Richard Stanton/Richard Hay/Rob Barff |
| 92 | Chamberlain/TVR | TVR Tuscan Rs | Mike Jordan/Michael Caine/Tim Sugden |
| 93 | Alex Job Racing | Porsche 996 GT3-RS | Sascha Maassen/Emmanuel Collard/Lucas Luhr |
| 94 | Risi Competizione | Ferrari 360 Modena | Ralf Kelleners/Terry Borcheller/Anthony Lazzaro |
| 95 | Risi Competizione | Ferrari 360 Modena | Shane Lewis/Butch Leitzinger/Johnny Mowlem |
| 99 | XL Racing | Ferraro 550 Maranello | Ange Barde/Gael Lesoudier/Michel Ferte |
