| 0 | Lacey / Wilkins / Czapka | Doncaster Racing (CDN) | Peter Czapka | Porsche | 993 GT2 | R | Porsche | GTO | G.T. |
| 00 | Curran / Jenkins / Nesbitt | Orion Motorsports - Team Chicago | | Ford | Mustang | | Ford | AGT | G.T. |
| 04 | Rice / Earle / Trenery / *Brown | Roock Motorsports (USA) | Fabian Roock | Porsche | 993 GT2 | | Porsche | GTO | G.T. |
| 07 | Haywood / Marshall / Marshall | G&W Motorsports (USA) | | Porsche | 993 GT2 | Evo | Porsche | GTO | G.T. |
| 09 | Conway / Goad / Flis | The Spirit of Daytona (USA) | | Chevrolet | Camaro | IV | Chevrolet | AGT | G.T. |
| 3 | Stefanowicz / Pavlina / *Trenery | RS Motorsports | | Porsche | 993 Carrera | RSR | Porsche | GTO | G.T. |
| 5 | Johnson / Borcheller | Saleen-Allen Speedlab (USA) | | Saleen | Mustang | | Ford | GTO | G.T. |
| 6 | Rice / Tiller / Macaluso | TRP Racing | Michael Atkins | Lola | B2K/40 | | Nissan | SRII | S.R. |
| 7 | Murry / Luhr / Polk | Kelly Moss Racing | | Porsche | 996 GT3-R | | Porsche | GTU | G.T. |
| 11 | Bupp / Mills / Leavy | Leavy - Hamilton Safe (USA) | | Chevrolet | Camaro | | Chevrolet | AGT | G.T. |
| 12 | Kelleners / Schiattarella / van de Poele | Risi Competizione (USA) | | Ferrari | 333 SP | | Ferrari | SR | S.R. |
| 16 | Weaver / Leitzinger / Wallace | Dyson Racing Team (USA) | | Riley & Scott | Mk III | | Ford | SR | S.R. |
| 17 | Simon / Simo / Lauer | Hybrid Racing (USA) | | Riley & Scott | Mk III | | Ford | SR | S.R. |
| 18 | Pobst / Hiskey | Fordahl Motorsports (USA) | Kim Hiskey | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTU | G.T. |
| 20 | Forbes-Robinson / Paul, Jr. / *Dyson | Dyson Racing Team (USA) | | Riley & Scott | Mk III | | Ford | SR | S.R. |
| 21 | Aase / Hajducky / Oneglia | Aasco Perf/Alta-Vista | | Porsche | 911 Carrera RSR | | Porsche | GTU | G.T. |
| 22 | Oberto / Hampton / Macey | Archangel Motorsport Services (USA) | Michael Johnson | Lola | B2K/40 | | Nissan | SRII | S.R. |
| 25 | Haupt / Wagner / *Montgomery | Roock/DM Motorsports (USA) | Fabian Roock | Porsche | 993 GT2 | | Porsche | GTO | G.T. |
| 27 | Theys / Lienhard / Bentley | Doran Lista Racing (USA) | | Ferrari | 333 SP | | Judd | SR | S.R. |
| 29 | Joel Field | Intersport Racing (USA) | | Riley & Scott | Mk III | | Ford | SR | S.R. |
| 31 | Smith / Ruiz | Carolina Racing Engines | | Chevrolet | Camaro | | Chevrolet | AGT | G.T. |
| 34 | Pumpelly / Assentato | Pumpelly Racing (USA) | | Porsche | 993 Carrera | RSR | Porsche | GTU | G.T. |
| 37 | Field / Gavin | Intersport Racing (USA) | | Lola | B2K/10 | | Judd | SR | S.R. |
| 38 | Schroeder / Wollek / Müller | Champion Racing (USA) | | Lola | B2K/10 | | Porsche | SR | S.R. |
| 43 | Baron / Drendel / Buitoni | Orbit | | Porsche | 996 GT3-R | | Porsche | GTU | G.T. |
| 44 | Aponte / Blanc | Aponte Bros Racing (PR) | | Mazda | RX-7 | | Mazda | GTU | G.T. |
| 46 | Messley / Hayner | Team Viper West | | Dodge | Viper | GTS | Dodge | GTO | G.T. |
| 49 | Lewis / McKeever | Jack Lewis Enterprises | | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTU | G.T. |
| 50 | Auberlen / Fairbanks | Genesis Racing | | BMW | M3 | E36 | BMW | GTU | G.T. |
| 51 | Seward / Galpin / Yeames | Farrell-Seward Motorsports | | Oldsmobile | Aurora | | | AGT | G.T. |
| 54 | Jennings / Collins | Genesis Racing (USA) | | BMW | M3 | E36 | BMW | GTU | G.T. |
| 55 | Gleason / Burrows | Genesis Racing | | BMW | M3 | | BMW | GTU | G.T. |
| 58 | Knollenberg / Bouchier / Shalala | ProTechnik Racing (USA) | Sam Shalala | Porsche | 993 | | Porsche | GTU | G.T. |
| 61 | Brunk / Fisher | Paragon Motorsports | | Porsche | 964 Carrera | Cup | Porsche | GTU | G.T. |
| 62 | Spencer / Grupp / Thomas | Team Spencer Motorsports | | Kudzu | DLM | | Mazda | SRII | S.R. |
| 63 | Smith / Katz / Downing | Downing Atlanta, Inc. (USA) | Jim Downing | Kudzu | DLY | | Mazda | SR | S.R. |
| 66 | Buckler / Collin | The Racer's Group (USA) | | Porsche | 996 GT3-R | | Porsche | GTU | G.T. |
| 67 | Wurtz / Manfredi / Biskup | The Racers Group (USA) | Kevin Buckler | Porsche | 996 GT3-R | | Porsche | GTU | G.T. |
| 71 | Thompson / Thompson / DeFontes | Dura "Fitted Garage" Motorsport | | Chevrolet | Camaro | | Chevrolet | AGT | G.T. |
| 73 | Argetsinger / Stewart / *Ziegelman | Autosport South (USA) | Alan Ziegelman | Porsche | 993 Carrera | RSR | Porsche | GTU | G.T. |
| 74 | Baldwin / Robinson | Robinson Racing (USA) | | Riley & Scott | Mk III | | Judd | SR | S.R. |
| 77 | Ave / Doran | Doran Lista Racing (USA) | | Pontiac | Grand Prix | | Pontiac | AGT | G.T. |
| 79 | Kicak / Pilla | Free Spirit Motorsports | | Porsche | 993 GT2 | | Porsche | GTO | G.T. |
| 80 | Morton / Schrom / Cobb | G&W Motorsports (USA) | | Porsche | 996 GT3-R | | Porsche | GTU | G.T. |
| 81 | Law / Fitzgerald | G&W Motorsports (USA) | | Porsche | 996 GT3-R | | Porsche | GTU | G.T. |
| 84 | Finger / McNeil / Smith | Comer Racing Inc | | Chevrolet | Camaro | IV | Chevrolet | AGT | G.T. |
| 88 | Julien / Dumoulin | Porsche Haus Racing | | Porsche | 996 GT3 Cup | | Porsche | GTU | G.T. |
| 89 | Veilleux / Tancrede | Porsche Haus Racing (CDN) | | Porsche | 911 Carrera RSR | | Porsche | GTU | G.T. |
| 90 | Friedman / *Peter | Millennium Motorsports (USA) | | Porsche | 993 Carrera | RSR 3.8 | Porsche | GTU | G.T. |
| 91 | Hoerr / Frank / Schramm | RVO Motorsports | | Chevrolet | Camaro | | Chevrolet | AGT | G.T. |
| 95 | Carter / Volk / Petery | TRV Motorsport | | Riley & Scott | Mk III | | Chevrolet | SR | S.R. |
| 97 | Policastro, Jr. / Policastro / Jackson | Gunnar Racing (USA) | | Porsche | 993 Carrera | RSR 3.8 | Porsche | GTU | G.T. |
| 98 | Zitza / Lacey / Hopkins | Grand Touring Technologies | | Porsche | 996 GT3 Cup | | Porsche | GTU | G.T. |
| 99 | Snow / *Schumacher / *Hayner | Snow/Schumacher Racing (USA) | | Lola | B2K/40 | | Nissan | SRII | S.R. |