| 0 | Maxwell / Priestley / Empringham | Multimatic Motorsports | | Ford | Mustang Cobra | | Ford | GT1 |
| 00 | Bouchut / Goueslard / Rosenblad / Ahrlé | Larbre Competition (F) | | Porsche | 911 GT1 | | Porsche | GT1 |
| 01 | McNish / Sullivan / Müller / Müller / Alzen | Rohr Motorsport (USA) | | Porsche | 911 GT1 | Evo | Porsche | GT1 |
| 04 | Morton / Graham / Huisman / Huisman | C.J. Motorsports (CDN) | John Graham | Porsche | 993 GT2 | R | Porsche | GT2 |
| 05 | Euser / Ishihara / Iketani / *Bytzek | Prova Motorsports (CDN) | | Porsche | 993 GT2 | | Porsche | GT2 |
| 07 | Cobb / Marshall / Chambers / Gallade / Konig | G & W Motorsports, Inc. | | Porsche | 993 | | Porsche | GT3 |
| 09 | Conway / van Cleef / Flis | Spirit of Daytona | | Mitsubishi | Eclipse | GSX | Mitsubishi | GT3 |
| 2 | Lewis / Rice / Hornkohl / Neville | Mosler Automotive | | Mosler | Raptor | | | GT1 |
| 3 | Dalmas / Wollek / Papis / Fellows / *Evans | Scandia Enginnering (USA) | | Ferrari | 333 SP | | Ferrari | CA |
| 4 | Borkowski / Kanaan / Buhl | Tom Gloy Racing | | Ford | Mustang Cobra | | Ford | GT1 |
| 5 | Wallace / Pruett / Boesel / Bundy | Panoz-Visteon Racing (USA) | Don Panoz | Panoz | GTR-1 | | Ford | GT1 |
| 6 | Simo / Cunningham / Quester | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GT3 |
| 7 | Bentley / Delano / Petery / Hill | Prototype Technology Group Inc. (USA) | | BMW | M3 | E36 | BMW | GT3 |
| 8 | O'Connell / Camferdam / Schubot | Transatlantic Racing/Support Net Racing (USA) | | Riley & Scott | Mk III | | Ford | CA |
| 10 | Auberlen / Duez / Said / Cunningham / *de Radigues | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GT3 |
| 11 | Fairbanks / *DeFontes / *Goldsborough / *Lewis / *Newhaus | Genesis Racing National Paintball (USA) | Rick Fairbanks | Hawk | MD3R | | Mazda | CA |
| 15 | Cochran / Aouate | Kevin Jeannette | | Porsche | 993 | | Porsche | GT2 |
| 16 | Weaver / Dyson / Schroeder / Forbes-Robinson | Dyson Racing Team (USA) | | Riley & Scott | Mk III | | Ford | CA |
| 17 | Taylor / van de Poele / Velez | Doyle-Risi Racing (USA) | | Ferrari | 333 SP | | Ferrari | CA |
| 19 | Smith / Montgomery / Davin | Davin Racing | | Kudzu | DLM | | Buick | CA |
| 20 | Leitzinger / Paul, Jr. / McCarthy / Dyson | Dyson Racing Team (USA) | | Riley & Scott | Mk III | | Ford | CA |
| 21 | Lara Resende / Schuch / Trindale / Sandro Sala | Dener Motorsport Stuttgart Sportscar | | Porsche | 993 GT2 | | Porsche | GT2 |
| 23 | Conte / Lambert / Holt / Havens | Alex Job Racing/Team Seattle (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 24 | Kitch / Sanborn / Cilli / Wolfkill | Alex Job Racing/Team Seattle (USA) | | Porsche | 911 Carrera | RSR | Porsche | GT3 |
| 25 | Hofer / Riccitelli / Sangiuolo / Blieninger | RWS-Brun Motorsport | | Porsche | 993 Cup | | Porsche | GT3 |
| 27 | Goldin / Thomas / Vallancourt / Goldin | Goldin Brothers Racing | | Mazda | RX-7 | | Mazda | GT3 |
| 28 | Field / Sutherland / Brickell / Bertaggia / Padilla | Intersport Wheelworks Racing (USA) | | Riley & Scott | Mk III | | Ford | CA |
| 29 | Rosa / Viganó / Rosa / Masselli / Johnson | Overbagh Motor Racing (USA) | Hoyt Overbagh | Chevrolet | Camaro | IV | Chevrolet | GT1 |
| 30 | Moretti / Luyendyk / Baldi / Theys | Doran/Moretti Racing | | Ferrari | 333 SP | | Ferrari | CA |
| 32 | Heinricy / *Hayner / *Harrington / *Knowles | Phoenix American Motorsport | | Pontiac | Firebird | Formula | Pontiac | GT3 |
| 33 | Weinberg / Michealian / Rockwood / McNeely | Phoenix American Motorsport | | Pontiac | Firebird | Formula | Pontiac | GT3 |
| 35 | Bucci / Casadei / Ciani / Garbagnati | McDill Racing (USA) | Richard McDill | Chevrolet | Camaro | IV | Chevrolet | GT1 |
| 36 | Salazar / Pace / Waddell / *Matthews | Colucci/Matthews Racing (USA) | | Riley & Scott | Mk III | | Ford | CA |
| 37 | White / Loftis / Strange / Howe | GTR Motorsports | | Porsche | 968 | GTR | Porsche | GT3 |
| 38 | Boutsen / Pilgrim / Kelleners | Champion Motors (USA) | | Porsche | 911 GT1 | Evo | Porsche | GT1 |
| 39 | Murry / Haywood / Bell / Matthews | Colucci/Matthews Racing (USA) | | Riley & Scott | Mk III | | Ford | CA |
| 40 | Rankin / Scott / Jensen / Lassally / Northam | Rankin Racing, Inc. (USA) | | Chevrolet | Camaro | IV | Chevrolet | GT1 |
| 41 | Wagner / Cervelli / Basseng / Collins | Technodyne | | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 44 | Grohs / *Willems / *Dupont / *Taels | GLPK Racing Leaders (B) | | Porsche | 911 | | Porsche | GT3 |
| 45 | Cohen / Kumpen / Schoonbroodt / Funke | GLPK Racing Leaders (B) | | Porsche | 993 GT2 | | Porsche | GT3 |
| 46 | Bailey / Needell / Baird / *Dean | Newcastle United Storm Racing (GB) | | Lister | Storm | GTL | Jaguar | GT1 |
| 50 | Johnson / McGlynn / Oppenheimer / Balbach / Johnson | Johnson Autosport Racing | J. Robert Johnson | Porsche | 911 Turbo | | Porsche | GT2 |
| 51 | Trenery / Trenery / Bryant / Pfeifer / Painter | Fantasy Junction-Coys Racing | Bruce Trenery | Cannibal | | | Chevrolet | CA |
| 52 | Russell / Stitt / Hillstead / Arnold / Crilly | Team Protosport GT | | Porsche | 911 Carrera | RSR | Porsche | GT3 |
| 53 | Scheuren / Pumpelly / Green / Jones | Diablo Racing (USA) | Tom Scheuren | Chevrolet | Camaro | IV | Chevrolet | GT1 |
| 54 | Hayner / Taleb / Neuman / Borcheller | Bell Motorsports (USA) | James Bell | BMW | M3 | E36 | BMW | GT3 |
| 55 | Slater / Ralston / Peterson / Trejos | AASCO Performance | | Porsche | 911 Carrera | RSR | Porsche | GT3 |
| 56 | Aguirre / Castillo / Paolucci / Gilbicella | Team Argentina | | Oldsmobile | Cutlass | | | GT1 |
| 57 | Kryder / Ahlgrim / Deen / Del Vecchio / Hampton | Kryderacing (USA) | | Nissan | 240SX | | Nissan | GT3 |
| 58 | Dro / Shuster / Lenain | Broadfoot Racing | | Porsche | 944 | Turbo | Porsche | GT2 |
| 59 | Gregg / Kuttner / DeSoto / Holt | Intersport Wheelworks Racing (USA) | | Spice | SC95 | | Oldsmobile | CA |
| 60 | Donley / Wilson / *Moser | Kopf Precision Race Products (USA) | | Keiler | KII | | Ford | CA |
| 62 | Mirro / Thomas / Campbell / Spencer / Grupp | Downing/Atlanta, Inc. (USA) | | Kudzu | DLM | | Mazda | CA |
| 63 | Terada / Katz / O'Steen / Downing / Fréon | Downing/Atlanta, Inc. (USA) | | Kudzu | DLM-4 | | Mazda | CA |
| 65 | Saleen / Johnson / Hoy | Saleen/Allen RRR Speedlab (USA) | | Saleen | Mustang | | Ford | GT2 |
| 67 | Ronson / Pelke / Pelke / Busby | The Racers Group (USA) | Kevin Buckler | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 68 | Buckler / Collin / Bretzel / Dayton | The Racers Group (USA) | Kevin Buckler | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 69 | Lay / Ruch / Langhorne / Ried | Proton Competition (D) | Gerold Ried | Porsche | 993 GT2 | | Porsche | GT2 |
| 71 | Worth / Vitucci / Lester / Sansone / Richards | Pettit Racing | Cameron Worth | Mazda | RX-7 | Turbo | Mazda | GT2 |
| 72 | Banks / Sprinkle / Hitt | Banks Motorsport (USA) | | Chevrolet | Corvette C4 | | Chevrolet | GT1 |
| 73 | Lewis / Burgess / Lazzaro / Mathewson | Jack Lewis Enterprises | | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 74 | Robinson / Baldwin / Hoerr / Gooding | Robinson Racing (USA) | | Oldsmobile | Aurora | | Chevrolet | GT1 |
| 75 | Schmidt / Bingham / Smith / Harrington / *Dolejší | On the Edge Racing | Schmidt Brothers | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 76 | Doolin / Peeler / Ruther / Snow | Team A.R.E. (USA) | Richard Raimist | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 77 | Drew / Friedman / Peter / Nelson / Greenburg | Grey Cliff Racing | Mark Greenberg | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 81 | Gleason / Lintott / Turner / Ward | Chamberlain Engineering (GB) | Hugh Chamberlain | Dodge | Viper | GTS-R | Dodge | GT2 |
| 86 | Redman / Marshall / Urciuoli / Amren / Cobb | G & W Motorsports, Inc. (USA) | | Porsche | 993 Carrera | RSR | Porsche | GT3 |
| 87 | Annis / Hill / Ladoniczki / Ladoniczki / Pobst | John Annis Racing | | Chevrolet | Camaro | IV | Chevrolet | GT1 |
| 88 | Lazzaro / Dollahite / Dallenbach | Dollahite Racing | | Spice | BDG-02 | | Chevrolet | CA |
| 89 | Maugeri / Puleo / Penton / Urrutia | Maugeri Motorsports | | Chevrolet | Camaro | IV | Chevrolet | GT1 |
| 90 | Wauters / Wauters / La Rosa / Longin / Vanierschot | AD Sport | | Porsche | 993 GT2 | | Porsche | GT2 |
| 95 | Schroeder / Volk / St. James / Halsmer | TRV Motorsport | | Kudzu | DL-4 | | Chevrolet | CA |
| 96 | Zitza / Wheeler / Davies | Olive Garden Racing | | Porsche | 993 | | Porsche | GT3 |
| 97 | Seiler / Rössler / Kitchak / Zadra / Konrad | Konrad Motorsport (D) | Franz Konrad | Porsche | 993 GT2 | R | Porsche | GT2 |
| 98 | Schumacher / Nearn / Konrad / Ham | Konrad Motorsport (D) | Franz Konrad | Porsche | 993 GT2 | | Porsche | GT2 |
| 99 | Bernard / Brabham / Davies / *Bundy | Panoz-Visteon Racing (USA) | Don Panoz | Panoz | GTR-1 | | Ford | GT1 |