| 0 | Schiattarella / van de Poele / Enge | Team Rafanelli SRL (I) | | Riley & Scott | Mk III | | Judd | LMP |
| 02 | Murry / Mowlem / Haywood | Reiser Callas Rennsport (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT |
| 03 | Stanton / Willingham / Reiser | Reiser Callas Rennsport (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT |
| 06 | Maxwell / Toivonen | Multimatic Motorsports (CDN) | | Lola | B98/10 | | Ford | LMP |
| 07 | Hall / Marshall / Marshall / Lux | G&W Motorsports (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT |
| 08 | Hürtgen / Haupt / Ahrlé | Roock Motorsport North America (D) | Fabian Roock | Porsche | 993 GT2 | | Porsche | GTS |
| 1 | Brabham / Bernard / Wallace | Panoz Motor Sports (USA) | Don Panoz | Panoz | LMP-1 Roadster S | | Ford | LMP |
| 2 | Magnussen / O'Connell / Gidley | Panoz Motor Sports (USA) | Don Panoz | Panoz | LMP-1 Roadster S | | Ford | LMP |
| 3 | Fellows / Kneifel / Paul, Jr. | Corvette Racing (USA) | | Chevrolet | Corvette C5 | -R | Chevrolet | GTS |
| 4 | Collins / Pilgrim / Sharp | Corvette Racing (USA) | | Chevrolet | Corvette C5 | -R | Chevrolet | GTS |
| 6 | Said / Stuck | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GT |
| 7 | Cunningham / Simo / Cunningham | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GT |
| 8 | Schubot / Camferdam / Sutherland | Transatlantic Racing (USA) | | Riley & Scott | Mk III | | Ford | LMP |
| 10 | Law / Van Overbeek / Simo | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GT |
| 11 | Angelelli / de Radigues / Pompidou | Doyle-Risi Racing (USA) | | Ferrari | 333 SP | | Ferrari | LMP |
| 12 | Caffi / Taylor / Montermini | Doyle-Risi Racing (USA) | | Ferrari | 333 SP | | Ferrari | LMP |
| 13 | Graf / Lammers / Konrad | J&P Motorsports (USA) | | Panoz | LMP-1 Roadster S | | Ford | LMP |
| 17 | Lambert / Conte | Contemporary Motorsports (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT |
| 19 | Defourny / Hugenholtz / Ara | Chamberlain Motorsport (GB) | Hugh Chamberlain | Dodge | Viper | GTS-R | Dodge | GTS |
| 20 | Weaver / Forbes-Robinson / Leitzinger | Dyson Racing (USA) | | Riley & Scott | Mk III | | Ford | LMP |
| 22 | Pobst / Fitzgerald / *Havens | Alex Job Racing (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT |
| 23 | Maassen / Müller / Wagner | Manthey Racing (D) | Alex Job | Porsche | 996 GT3-R | | Porsche | GT |
| 25 | Riccitelli / Hofer / Huisman | RWS Motorsport (D) | | Porsche | 996 GT3-R | | Porsche | GT |
| 27 | Theys / Lienhard / Dickens | Doran Lista Racing (USA) | | Ferrari | 333 SP | | Ferrari | LMP |
| 28 | Field / Jones / Jönsson | Intersport Racing (USA) | | Lola | B98/10 | | Ford | LMP |
| 29 | Hubman / Rice / Mirro | Intersport Racing (USA) | | Riley & Scott | Mk III | | Ford | LMP |
| 31 | Kester / Dullum / Baumann | Nygmatech Motorsports (USA) | | Riley & Scott | Mk III | | Ford | LMP |
| 36 | Johansson / Matthews / Dixon | Doran Matthews Racing (USA) | | Ferrari | 333 SP | | Ferrari | LMP |
| 38 | McNish / Kelleners / Wollek | Champion Racing (USA) | | Porsche | 911 GT1 | Evo | Porsche | LMP |
| 42 | Lehto / Müller | BMW Motorsport (D) | | BMW | V12 LMR | | BMW | LMP |
| 43 | Auberlen / Soper / Winkelhock | BMW Motorsport (D) | | BMW | V12 LMR | | BMW | LMP |
| 48 | Kaufmann / Ligonnet | Freisinger Motorsport (D) | | Porsche | 993 GT2 | | Porsche | GTS |
| 49 | Stewart / Hane | Freisinger Motorsport (D) | Manfred Freisinger | Porsche | 993 GT2 | R | Porsche | GTS |
| 55 | Johnson / Borcheller / Lewis | Saleen-Allen Speedlab (USA) | | Saleen | Mustang | SR | Ford | GTS |
| 56 | Snow / Schumacher / *O'Steen | Martin Snow Racing (USA) | Larry Schumacher | Porsche | 993 GT2 | | Porsche | GTS |
| 61 | Neugarten / Slater / McGlynn | Konrad Motorsport (D) | Franz Konrad | Porsche | 993 GT2 | | Porsche | GTS |
| 62 | Grupp / Waddell / Spencer | Downing/Atlanta (USA) | | Kudzu | DLM | | Mazda | LMP |
| 63 | Fréon / Katz / Downing | Downing/Atlanta (USA) | Jim Downing | Kudzu | DLY | | Mazda | LMP |
| 64 | Pumpelly / *Lewis / *Mathewson | Spencer Pumpelly Racing (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT |
| 70 | Gabel / de Quesada | Alegra Motorsports (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT |
| 73 | Refenning / Ziegelman / Wheeler / Lima | Auto Sport South Racing (USA) | Alan Ziegelman | Porsche | 993 Carrera | RSR | Porsche | GT |
| 74 | Baldwin / Robinson / Hoerr | Robinson Racing (USA) | | Riley & Scott | Mk III | | Chevrolet | LMP |
| 75 | Gounon / Tinseau / Montagny | DAMS (F) | | Lola | B98/10 | | Judd | LMP |
| 76 | Sobrero / Cilli / Auberlen | Team ARE (USA) | Richard Raimist | Porsche | 993 Carrera | RSR | Porsche | GT |
| 83 | Foster / Brown / Schrom / Earle | Chiefie Motorsports (USA) | | Porsche | 993 GT2 | | Porsche | GTS |
| 84 | Nowicki / Heinricy | Specter Werkes/Sports Inc. | | Chevrolet | Corvette C5 | | Chevrolet | GT |
| 91 | Beretta / Wendlinger / Duez | Dodge Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |
| 92 | Archer / Donohue / Belloc | Dodge Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |
| 93 | Amorim / Bell / Clérico | Dodge Viper Team Oreca (F) | Hugues de Chaunac | Dodge | Viper | GTS-R | Dodge | GTS |
| 95 | Schroeder / Volk / St. James | TRV Motorsport (USA) | | Riley & Scott | Mk III | | Chevrolet | LMP |
| 96 | Heinricy / White / Coker / *Varde | Freisinger Motorsport (USA) | | Porsche | 996 GT3 Cup | | Porsche | GT |