| 0 | Miller / *Rathbun / *Stewart / *Holt | Leigh Miller Racing | | Porsche | 944 | Turbo | Porsche | GTU | |
| 00 | Hermann / van Vliet / Sandro Sala / *Konrad | Konrad Motorsport (D) | | Porsche | 964 Carrera | RSR | Porsche | GTU | LM GT2 |
| 01 | Rohr / Purner / O'Steen | Rohr Corporation (USA) | Jochen Rohr | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTU | LM GT2 |
| 03 | Smith / Spurr / Goldin | Carolina Racing Engines | | Chevrolet | Camaro | | Chevrolet | GTS | |
| 04 | Cross / Roberts / Dumont / *Kennedy | Art Cross | | Chevrolet | Camaro | III | Chevrolet | GTS | |
| 08 | Taleb / *Andrews / *Michelet / *Escobar | Saeta Racing (EC) | | Nissan | 300ZX | | Nissan | GTU | |
| 09 | Wagner / Russell / Brady / Mott | Charles Wagner (USA) | Charles Wagner | Mazda | RX-7 | | Mazda | GTU | |
| 2 | Dale / Schader / Melgrati | Brix Racing (USA) | Harry Brix | Spice | AK93 | | Oldsmobile | WSC | |
| 3 | Painter / Busby | Kent Painter (USA) | Kent Painter | Chevrolet | Camaro | III | Chevrolet | GTS | |
| 4 | Dibos / Lindley / Auberlen | Dibos Racing/Team Peru (PE) | | Mazda | RX-7 | | Mazda | GTU | |
| 5 | Pruett / Cobb / Riggins / *Hoerr | Brix Racing | | Oldsmobile | Cutlass | Supreme | | GTS | |
| 6 | Smith / Riggins / Hoerr / Brassfield | Brix Racing | | Oldsmobile | Cutlass | Supreme | | GTS | |
| 9 | Weaver / Bell / Wallace / *Shirazi | Auto Toy Store | Morris Shirazi | Spice | SE89P | | Chevrolet | WSC | |
| 10 | Jones / Lapcevich / Jamieson | Premdor | | Tiga | FJ94 | | Buick | WSC | |
| 11 | Kester / Cleva / Hamilton | Tony Kester | | Tiga | GT286 | Spyder | Mazda | WSC | |
| 12 | Bundy / Murry | Lotus USA | | Lotus | Esprit | X180R | Lotus | GTU | LM GT2 |
| 19 | Pobst / O'Brien / Teasdale | O'Brien Motorsports | | Chevrolet | Camaro | | Chevrolet | GTS | |
| 20 | Lagasse / Schrader | Consulier Racing | | Consulier | Intruder | | Chevrolet | WSC | |
| 21 | Hundredmark / Hanson / Fengler / King | Bob Hundredmark | | Oldsmobile | Cutlass | | | GTS | |
| 22 | Wallace / *Nelson / *Clark / *Schroeder | Screaming Eagles Racing (USA) | | Spice | SE90 | | Toyota | WSC | |
| 23 | Curren / Borders / Julian / Harry | Curren Motorsports (USA) | Tom Curren | Oldsmobile | Cutlass | | | GTS | |
| 26 | Slater / Uria / Cogbill | Alex Job Racing (USA) | Alex Job | Porsche | 911 | | Porsche | GTU | |
| 35 | McDill / Juckette / McDill | Bill McDill | | Chevrolet | Camaro | | Chevrolet | GTS | |
| 36 | Halsmer / Kuttner / Quester / Zweifler | Pegasus Racing (USA) | | Pegasus | | | BMW | WSC | |
| 37 | Calderari / Bryner / Mastropietro | Chrzanowski & Klein Racing (D) | | Porsche | 964 Carrera | RSR | Porsche | GTU | LM GT2 |
| 44 | Bentley / Evans / Leitzinger | Scandia Motorsports (USA) | | Spice | WSC94 | | Chevrolet | WSC | |
| 45 | Macaluso / Debban / Fuller / *Schmidt | Scandia Motorsports | | Kudzu | DG-2 | WSC | Buick | WSC | |
| 49 | Ham / Varde / Sandridge | Mark Sandridge | | Porsche | 911 Carrera | RSR | Porsche | GTU | LM GT2 |
| 50 | Montgomery / Ministri / Kimbrough / Overbagh | Overbagh Racing (USA) | Hoyt Overbagh | Chevrolet | Camaro | III | Chevrolet | GTS | |
| 51 | Trenery / Pattinson / Osman / *Flatt / *Painter | Bruce Trenery | | Oldsmobile | Cutlass | | | GTS | |
| 57 | Kryder / Del Vecchio / Danaher | Kryderacing (USA) | | Nissan | 240SX | | Nissan | GTU | |
| 58 | Shalala / Karos / Kerr / Ferran | Pro Technik Racing | Sam Shalala | Porsche | 911 | | Porsche | GTU | |
| 59 | Stuck / Röhrl / Haywood | Brumos Porsche (USA) | | Porsche | 964 Turbo | GT America | Porsche | GTS | LM GT1 |
| 63 | Taylor / McAdam / Downing | Downing/Atlanta (USA) | | Kudzu | DG-3 | WSC | Mazda | WSC | |
| 68 | McKinnon / Groggins / Coker / Johnson / *White | Charles Coker, Jr. (USA) | Charles Coker, Jr. | Porsche | 944 | Turbo | Porsche | GTU | |
| 69 | Spreng / Mummery | Gustl Spreng Racing | | Porsche | 964 Carrera | RSR | Porsche | GTS | LM GT1 |
| 71 | Churchill / Churchill | Churchill Transport (USA) | Jerry Churchill | Oldsmobile | Cutlass | | | GTS | |
| 72 | Adam / Paul, Jr. / Gonzalez / *Peters | Champion Porsche (USA) | | Porsche | 964 Turbo | | Porsche | GTS | |
| 73 | Refenning / Bourassa / Lewis | Jack Lewis Enterprises Ltd. | | Porsche | 911 Carrera | RSR | Porsche | GTU | |
| 75 | Morton / O'Connell / Millen | Cunningham Racing (USA) | | Nissan | 300ZX | Turbo (Z32) | Nissan | GTS | |
| 76 | Gentilozzi / Leitzinger / *Millen / *O'Connell | Cunningham Racing (USA) | | Nissan | 300ZX | Turbo (Z32) | Nissan | GTS | |
| 81 | Scavone / Oland / McAulay | Vito Scavone (CDN) | Vito Scavone | Porsche | 944 | Turbo | Porsche | GTU | |
| 87 | Annis / *Beall / *DeShong / *Meyer / *Sereix | John Annis | John Annis | Chevrolet | Camaro | | Chevrolet | GTS | |
| 91 | Hicks / Butt / Zitza | Mel A. Butt | | Porsche | 911 | | Porsche | GTU | |
| 93 | Percilla / Pilgrim / Minneker / Nowicki | Morrison Motorsports (USA) | | Chevrolet | Corvette C4 | ZR-1 | Chevrolet | GTS | |
| 94 | Heinricy / Hayner / Pilgrim | Morrison Motorsports (USA) | Tommy Morrison | Chevrolet | Corvette C4 | ZR-1 | Chevrolet | GTS | LM GT1 |
| 95 | Pace / Hamlet / Waddell | Leitzinger Racing (USA) | | Nissan | 240SX | | Nissan | GTU | |
| 96 | Boss / Straub / Boss | Leitzinger Racing (USA) | | Nissan | 240SX | | Nissan | GTU | |
| 99 | Wirdheim / Konrad / de Lesseps / Mendez | Konrad Motorsport (D) | | Porsche | 964 | Bi-Turbo | Porsche | GTS | LM GT1 |