| 0 | Schiattarella / de Radigues / Simon | Team Rafanelli SRL (I) | | Lola | B2K/10 | | Judd | LMP |
| 08 | Brown / Rice / Snow | Roock Motorsport North America (USA) | Fabian Roock | Porsche | 993 GT2 | | Porsche | GTS |
| 09 | Fitzgerald / Trenery / *Peeler | Roock Motorsport North America (USA) | Fabian Roock | Porsche | 993 GT2 | | Porsche | GTS |
| 1 | Magnussen / Brabham | Panoz Motor Sports (USA) | Don Panoz | Panoz | LMP-1 Roadster S | | Elan | LMP |
| 2 | Graf / O'Connell / Katou | Panoz Motor Sports (USA) | Don Panoz | Panoz | LMP-1 Roadster S | | Elan | LMP |
| 3 | Fellows / Kneifel / Bell | Corvette Racing (USA) | | Chevrolet | Corvette C5 | -R | Chevrolet | GTS |
| 4 | Collins / Pilgrim / Fréon | Corvette Racing (USA) | | Chevrolet | Corvette C5 | -R | Chevrolet | GTS |
| 5 | Luhr / Müller | Dick Barbour Racing (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 7 | Said / Stuck / Van Overbeek | Prototype Technology Group (USA) | | BMW | M3 | E46 GT | BMW | GT |
| 9 | Wallace / Leitzinger / Lagorce | Team Cadillac (USA) | | Cadillac | Northstar LMP | | Cadillac | LMP |
| 10 | Cunningham / *Jönsson / *Cunningham | Prototype Technology Group (USA) | | BMW | M3 | E46 GT | BMW | GT |
| 11 | Weickardt / Parker | Patriot Motorsports (USA) | | Dodge | Viper | GTS-R | Dodge | GTS |
| 12 | Paul, Jr. / Hanneman / Parker / *Gilbert | Patriot Motorsports (USA) | | Dodge | Viper | GTS-R | Dodge | GTS |
| 15 | Brockman / Wars / Newman | Dick Barbour Racing (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 19 | Angelelli / Taylor / van de Poele | Team Cadillac (USA) | | Cadillac | Northstar LMP | | Cadillac | LMP |
| 21 | Lewis / Wagner / Mazzuoccola | MCR/Aspen Knolls (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 23 | Pobst / Lambert / Lazzaro | Alex Job Racing (USA) | Alex Job | Porsche | 996 GT3-R | | Porsche | GT |
| 28 | Konrad / Slater / *Borcheller | Konrad Motorsport (D) | | Lola | B2K/10 | | Ford | LMP |
| 30 | Jeannette / Policastro / Jackson | White Lightning Racing (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 31 | Bernard / Collard | Motorola-DAMS (F) | | Cadillac | Northstar LMP | | Cadillac | LMP |
| 32 | Goossens / Tinseau | Motorola-DAMS (F) | | Cadillac | Northstar LMP | | Cadillac | LMP |
| 34 | Baron / Hindery / Buitoni | Orbit (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 36 | Smith / *Johansson / *Kelleners | Johansson-Matthews Racing (USA) | | Reynard | 2KQ | | Judd | LMP |
| 37 | Field / Gavin / *Sutherland | Intersport Racing (USA) | | Lola | B2K/10 | | Judd | LMP |
| 39 | Matthews / Simo | Johansson-Matthews Racing (USA) | | Reynard | 2KQ | | Judd | LMP |
| 42 | Lehto / Müller | BMW Motorsport (D) | | BMW | V12 LMR | | BMW | LMP |
| 43 | Gounon / Auberlen | BMW Motorsport (D) | | BMW | V12 LMR | | BMW | LMP |
| 51 | Maassen / Wollek | Dick Barbour Racing (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 52 | Mathewson / Willingham / Burgess | Seikel Motorsport (D) | Peter Seikel | Porsche | 996 GT3-R | | Porsche | GT |
| 61 | Pompidou / Duno / Watson | Chamberlain Motorsport (GB) | Hugh Chamberlain | Chrysler | Viper | GTS-R | Chrysler | GTS |
| 66 | Buckler / Collin / *Michaelian | The Racers Group (USA) | Kevin Buckler | Porsche | 996 GT3-R | | Porsche | GT |
| 69 | Foster / Wankum / Doff | Kyser Racing (CDN) | | Porsche | 996 GT3-R | | Porsche | GT |
| 70 | Murry / *Mowlem | Skea Racing International (AUS) | | Porsche | 996 GT3-R | | Porsche | GT |
| 71 | Bundy / Dean / *Skea | Skea Racing International (AUS) | | Porsche | 996 GT3-R | | Porsche | GT |
| 77 | McNish / Capello / Alboreto | Audi Sport North America (D) | Reinhold Joest | Audi | R8 | | Audi | LMP |
| 78 | Pirro / Kristensen / Biela | Audi Sport North America (D) | Reinhold Joest | Audi | R8 | | Audi | LMP |
| 80 | Law / Morton / Schrom | G & W Motorsports (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 81 | Lux / Galica / Endress | G & W Motorsports (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 91 | Beretta / Wendlinger / Duez | Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |
| 92 | Archer / Derichebourg / Huisman | Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |
| 93 | Donohue / Belloc / Dupuy | Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |