| 0 | Martini / Schiattarella / *de Radigues | Team Rafanelli SRL (I) | | Lola | B2K/10 | | Judd | LMP |
| 02 | Simon / *Blieninger / *Simo | Pole Team (D) | | Riley & Scott | Mk III | | Judd | LMP |
| 03 | Stanton / Haywood / Reiser | Reiser Callas Rennsport (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 06 | Maxwell / Empringham / Graham | Multimatic Motorsport (CDN) | Scott Maxwell | Lola | B98/10 | | Ford | LMP |
| 07 | Riccitelli / Peter / Quester | RWS Motorsport (D) | | Porsche | 996 GT3-R | | Porsche | GT |
| 08 | Rice / Hürtgen / Haupt | Roock Motorsport North America (D) | Fabian Roock | Porsche | 993 GT2 | | Porsche | GTS |
| 09 | Brown / Jurasz / Earle | Roock Motorsport North America (D) | Fabian Roock | Porsche | 993 GT2 | | Porsche | GTS |
| 1 | Brabham / Raphanel / Magnussen | Panoz Motor Sports (USA) | Don Panoz | Panoz | LMP-1 Roadster S | | Elan | LMP |
| 2 | O'Connell / Katou / *Graf | 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 |
| 6 | Said / Stuck / Van Overbeek | Prototype Technology Group (USA) | | BMW | M3 | E46 GT | BMW | GT |
| 6T | Simo / Said / Auberlen | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GT |
| 9 | Lagorce / Wallace / *Leitzinger | Team Cadillac (USA) | | Cadillac | Northstar LMP | | Cadillac | LMP |
| 10 | Cunningham / Cunningham / Law | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GT |
| 19 | van de Poele / Taylor / Angelelli | 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 / *Conte | Alex Job Racing (USA) | Alex Job | Porsche | 996 GT3-R | | Porsche | GT |
| 27 | Theys / Baldi / Lienhard | Doran/Lista Racing (USA) | | Ferrari | 333 SP | | Judd | LMP |
| 30 | MacLeod / Jeannette / Lauer | White Lightning Racing (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 31 | Collard / Bernard / *Tinseau | Motorola-DAMS (F) | | Cadillac | Northstar LMP | | Cadillac | LMP |
| 33 | Konrad / Slater / Paul, Jr. | Konrad Motorsport (D) | Franz Konrad | Porsche | 993 GT2 | R | Porsche | GTS |
| 36 | Johansson / Smith / *Matthews | Johansson Matthews Racing (USA) | | Reynard | 2KQ | | Judd | LMP |
| 37 | Field / Whittington / Whittington | Intersport Racing (USA) | | Lola | B98/10 | | Ford | LMP |
| 38 | Weaver / Schroeder / Kelleners | Champion Racing (USA) | | Lola | B2K/10 | | Porsche | LMP |
| 41 | Bouchut / Zadra / *Cruchet | Team LR Organisation (CH) | | Porsche | 996 GT3-R | | Porsche | GT |
| 42 | Lehto / Müller | BMW Motorsport (D) | | BMW | V12 LMR | | BMW | LMP |
| 43 | Auberlen / Gounon / Soper | BMW Motorsport (D) | | BMW | V12 LMR | | BMW | LMP |
| 51 | Maassen / Wollek | Dick Barbour Racing (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 52 | Collin / Mathewson / Burgess | Seikel Motorsport (D) | Peter Seikel | Porsche | 996 GT3-R | | Porsche | GT |
| 66 | Buckler / Nagel / Fitzgerald | The Racers Group (USA) | Kevin Buckler | Porsche | 996 GT3-R | | Porsche | GT |
| 70 | Mowlem / Murry | Skea Racing International (AUS) | | Porsche | 996 GT3-R | | Porsche | GT |
| 71 | Willingham / Hawkins / Skea | Skea Racing International (AUS) | | Porsche | 996 GT3-R | | Porsche | GT |
| 74 | Baldwin / Robinson / *Hoerr | Robinson Racing (USA) | | Reynard | 2KQ | | Judd | LMP |
| 77 | Capello / McNish / Alboreto | Audi Sport North America (D) | Reinhold Joest | Audi | R8 | | Audi | LMP |
| 78 | Biela / Pirro / Kristensen | Audi Sport North America (D) | | Audi | R8 | | Audi | LMP |
| 87 | James / Barbosa / Robertson | MCR/Nygmatech (USA) | | Porsche | 911 Carrera RSR | | Porsche | GT |
| 88 | Baron / Kester / Hindery | MCR/Nygmatech (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 89 | Dullum / McCormick / Baumann / *Wattles | MCR/Nygmatech (USA) | | Porsche | 996 GT3-R | | Porsche | GT |
| 91 | Beretta / Wendlinger / Dupuy | Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |
| 92 | Donohue / Archer / Duez | Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |
| 93 | Beltoise / Belloc / Amorim | Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |