| 0 | Bell / Spreng / Shirazi | Auto Toy Store | Morris Shirazi | Spice | SE90 | | Cadillac | WSC |
| 06 | Donohue / Quiros | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GTS-2 |
| 07 | Halsmer / Wollgarten / Quester / Donohue / Quiros | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GTS-2 |
| 09 | Mendez / Konrad / Hermann / Dolejší / Ahrlé | Konrad Motorsport (D) | Franz Konrad | Porsche | 993 GT2 | Evo | Porsche | GTS-1 |
| 1 | Brassfield / Cunningham / Hoerr / *Morgan / *Morgan / *Pezza | Brix Racing (USA) | | Oldsmobile | Aurora | | | GTS-1 |
| 2 | O'Connell / Nelson / Clark | Screaming Eagles Racing | | Riley & Scott | Mk III | | Ford | WSC |
| 3 | Evans / Baldi / Alboreto | Scandia Engineering | | Ferrari | 333 SP | | Ferrari | WSC |
| 4 | Taylor / van de Poele / Pace | Doyle Racing (USA) | | Riley & Scott | Mk III | | Oldsmobile | WSC |
| 5 | Pezza / Morgan / Morgan / *Hoerr / *Brassfield / *Cunningham | Brix Racing (USA) | | Oldsmobile | Aurora | | | GTS-1 |
| 6 | Dibos / Mendez / Auberlen | Juan Dibos (PE) | | Ford | Mustang | | Ford | GTS-1 |
| 7 | Forbes-Robinson / Schneider / Bell | Bobby Brown Motorsports (USA) | | Spice | HC94 | | Oldsmobile | WSC |
| 8 | Auberlen / Camferdam / Mandeville | Support Net Racing | | Hawk | C-8 | | Chevrolet | WSC |
| 9 | Schubot / Policand | Scott Schubot | | Courage | C41 | | Chevrolet | WSC |
| 16 | Paul, Jr. / Dyson / Weaver / *Wallace / *Leitzinger | Dyson Racing (USA) | | Riley & Scott | Mk III | | Ford | WSC |
| 17 | Pilla / Kimbrough / Bavaro | Art Pilla | | Porsche | 993 GT2 | Evo | Porsche | GTS-1 |
| 18 | Stewart / Creger / Haussecker | Brad Creger | | Mazda | RX-7 | | Mazda | GTS-2 |
| 19 | Randaccio / Brown / *Smith | Team SCI (I) | | Spice | SE90C | | Ferrari | WSC |
| 20 | Wallace / Leitzinger / *Weaver / *Dyson / *Paul, Jr. | Dyson Racing (USA) | | Riley & Scott | Mk III | | Ford | WSC |
| 22 | Kroczek / *Petroskey / *Montani / *Daccò / *Rosa | Eurosport Racing | | Porsche | 993 GT2 | | Porsche | GTS-2 |
| 24 | Slater / Finger / Rutherford / Auberlen / McQuiston | Alex Job Racing (USA) | Alex Job | Porsche | 993 | | Porsche | GTS-2 |
| 25 | Lazzaro / Cilli / Fitzgerald | Angelo Cilli (USA) | | Porsche | 993 | | Porsche | GTS-2 |
| 26 | Hessert / Haywood / *Slater | Alex Job Racing (USA) | | Porsche | 993 | ME | Porsche | GTS-2 |
| 27 | Refenning / Vargo / Refenning | Jack Refenning | | Porsche | 993 Cup | | Porsche | GTS-2 |
| 28 | Pridgen / Jones / Halsmer | Blake Pridgen | | Argo | JM20 | | Chevrolet | WSC |
| 30 | Moretti / Papis / Theys | Momo Corse (I) | | Ferrari | 333 SP | | Ferrari | WSC |
| 34 | Smith / Rankin / Sereix | Gary Smith | | Chevrolet | Camaro | IV | Chevrolet | GTS-1 |
| 35 | McDill / McDill / Juckette | Bill McDill | | Chevrolet | Camaro | | Chevrolet | GTS-1 |
| 36 | Libert / Fossett / Sutherland / *Hall | Wheel Works Racing | Rick Sutherland | Courage | C41 | | Chevrolet | WSC |
| 42 | Gregg / Schmidt / Freeman | Simon Gregg | | Porsche | 993 Cup | | Porsche | GTS-2 |
| 43 | Bentley / Payne / Fréon | Lee Payne Racing | Lee Payne | Riley & Scott | Mk III | | Oldsmobile | WSC |
| 44 | Jacobs / Weller / *Graf / *Duffy / *Pawley / *Argetsinger / *Sessions | Jacobs Motorsports (USA) | Michael Jacobs | Pontiac | Firebird | | Pontiac | GTS-1 |
| 46 | Drew / Nelson / Collings / Harrison | Rob Collings | | Porsche | 911 Carrera RS | Cup | Porsche | GTS-2 |
| 48 | Murry / Root / Nearburg | Chapman Root | | Porsche | 911 Turbo | | Porsche | GTS-1 |
| 51 | Trenery / Smith / Painter | Fantasy Junction | Bruce Trenery | Cannibal | | | Chevrolet | WSC |
| 52 | Strasser / Wheeler / Ludwig / Bourassa | Andy Strasser | | Porsche | 911 Carrera | RSR | Porsche | GTS-2 |
| 53 | Rubins / McQue / Kempgens / Davis | Team Rehabworks | | Chevrolet | Camaro | | Chevrolet | GTS-1 |
| 54 | Trott / Bye / Ruther / Kubik | Doug Trott (CDN) | | Porsche | 993 Cup | 3.8 RSR | Porsche | GTS-2 |
| 55 | Calderari / Bryner / Richter | Stadler Motorsport (CH) | Mathias Stadler | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTS-2 |
| 56 | Snow / Aase / Trejos | Martin Snow (USA) | Martin Snow | Porsche | 993 GT2 | | Porsche | GTS-1 |
| 57 | Kryder / Del Vecchio / *Garguilo / *Johnson / *Patterson | Kryderacing (USA) | | Nissan | 240SX | | Nissan | GTS-2 |
| 58 | Shalala / Matthews / Hillestad / Turner / Bohren | Pro Technik Racing (USA) | Sam Shalala | Porsche | 993 | | Porsche | GTS-2 |
| 63 | Hamlet / Waddell / Downing | Downing/Atlanta (USA) | | Kudzu | DLM | | Mazda | WSC |
| 67 | Purner / White / *Coker / *Singer | Hendricks Porsche (USA) | Charles Coker, Jr | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTS-2 |
| 69 | Mummery / Wegerer / Jodexnis / *Spreng | Spreng Racing | Gustl Spreng | Porsche | 993 Carrera | Turbo | Porsche | GTS-1 |
| 72 | Fergus / Bell / *Stuck / *Adam | Champion Porsche (USA) | | Porsche | 993 Turbo | | Porsche | GTS-1 |
| 73 | Lewis / Uria / Lluch | Jack Lewis Enterprises | | Porsche | 993 Carrera | RSR | Porsche | GTS-2 |
| 74 | Stuck / Adam / *Bell / *Fergus | Champion Porsche (USA) | Dave Maraj | Porsche | 993 GT2 | Evo | Porsche | GTS-1 |
| 77 | Banks / Goldin | Tim Banks | | Oldsmobile | Cutlass | Supreme | | GTS-1 |
| 78 | Wagner / Doolin / Collins / Martini | Team A.R.E. (USA) | Richard Raimist | Porsche | 964 Carrera | RSR | Porsche | GTS-2 |
| 81 | Scavone / Oland / Bartling / Pabst | Rudi Bartling (CDN) | | Porsche | 968 | | Porsche | GTS-2 |
| 86 | Marshall / Marshall / Biggs / Scrogham | G&W Motorsports, Inc. | | Porsche | 964 Carrera | Cup | Porsche | GTS-2 |
| 87 | Annis / Boudinot / Donovan | Simon Gregg | John Annis | Chevrolet | Camaro | | Chevrolet | GTS-1 |
| 88 | Thomas / Campbell / Bourassa | Douglas Campbell | | Mazda | RX-7 | | Mazda | GTS-2 |
| 89 | Collin / Buckler / Cogbill | Philip Collin | | Porsche | 911 | | Porsche | GTS-2 |
| 91 | Hayner / Heinricy / Schramm | Rock Valley Oil & Chemical Co. | | Chevrolet | Camaro | | Chevrolet | GTS-1 |
| 92 | Casadei / Biava / Montgomery / Overbagh / McElheny | Hoyt Overbagh (USA) | Hoyt Overbagh | Chevrolet | Camaro | IV | Chevrolet | GTS-1 |
| 93 | Taleb / Michelet / Wilson | Ecuador Mobil 1 Racing (EC) | Henry Taleb | Nissan | 240SX | | Nissan | GTS-2 |
| 94 | Wolfe / Oliveira / Lazier / Gottfried | Robert Gottfried | | Banshee | LNI-1 | | Chevrolet | WSC |
| 97 | Varde / Robinson / Cobb / Sifton / *Seibert / *Dismore | Canaska Southwind Motorsports (USA) | Vic Sifton | Dodge | Viper | GTS-R | Dodge | GTS-1 |
| 98 | Seibert / Dismore / Cobb / *Sifton / *Varde / *Robinson | Canaska Southwind Motorsports (USA) | Vic Sifton | Dodge | Viper | GTS-R | Dodge | GTS-1 |
| 99 | Pace / Pilgrim / Schumacher | Schumacher Racing (USA) | | Porsche | 911 Carrera | RSR | Porsche | GTS-2 |