| 0 | Miller / Teasdale / Graham / Porter | Champion Porsche/Leigh Miller Racing | | Porsche | 968 | | Porsche | GTU | LM GT2 |
| 00 | Euser / Hermann / Sandro Sala / Konrad | Konrad Motorsport (D) | | Porsche | 964 Carrera | RSR | Porsche | GTU | LM GT2 |
| 01 | Rohr / O'Steen / Schumacher / Zwart | Rohr Corporation (USA) | Jochen Rohr | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTU | LM GT2 |
| 02 | Katthöfer / Grohs / Mayländer / Sandridge | Rohr Corporation (USA) | Jochen Rohr | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTU | LM GT2 |
| 04 | Cross / *McCue / *Christ / *Hitt / *Kennedy | Art Cross (USA) | | Chevrolet | Camaro | III | Chevrolet | GTS | |
| 07 | Bye / *Hatch / *David / *Heimrath, Jr. | Commercial Motorsports | | Porsche | 968 | Turbo | Porsche | GTU | LM GT2 |
| 08 | Kasuya / Nakagawa / Andskar | Nissan Motorsports (J) | | Nissan | Skyline GT-R | | Nissan | GTU | LM GT2 |
| 2 | Dale / Melgrati / Schader / Cobb | Brix Racing (USA) | Harry Brix | Spice | AK93 | | Oldsmobile | WSC | |
| 3 | Pobst / Eatwell / Busby / Teasdale / O'Brien | O'Brien Motorsports Int. | | Chevrolet | Camaro | | Chevrolet | GTS | |
| 4 | Dibos / Dibos / Orlandini / Robson / *Jochamowitz | Dibos Racing/Team Peru (PE) | | Mazda | RX-7 | | Mazda | GTU | |
| 5 | Fergus / Dismore / Riggins / Brassfield / *Hoerr / *Cobb | Brix Racing | | Oldsmobile | Cutlass | Supreme | | GTS | |
| 6 | Riggins / Smith / Cobb / Hoerr / *Brassfield | Brix Racing | | Oldsmobile | Cutlass | Supreme | | GTS | |
| 8 | Taleb / Andrews / Michelet / Amador | Saeta Racing | | Nissan | 300ZX | | Nissan | GTU | |
| 9 | Brabham / Bell / Wallace / Shirazi | Auto Toy Store | Morris Shirazi | Spice | SE89P | | Chevrolet | WSC | |
| 11 | Cleva / Mingay / Hamilton / Kester | Tony Kester | | Tiga | GT286 | Spyder | Mazda | WSC | |
| 13 | Puleo / Stone / Irwin / Urrutia | Anthony Puleo (USA) | Anthony Puleo | Chevrolet | Camaro | III | Chevrolet | GTS | |
| 16 | Weaver / Dyson / Sharp / Paul, Jr. | Dyson Racing (USA) | | Spice | DR-3 | | Ferrari | WSC | |
| 18 | Schramm / Lewis / Goldsborough / Heimrath, Jr. / *Miller | Champion Porsche/Leigh Miller Racing | | Porsche | 944 | Turbo | Porsche | GTU | LM GT2 |
| 19 | Auberlen / Lindley / Finger / Sheehan | Bill Auberlen (USA) | | Mazda | RX-7 | | Mazda | GTU | |
| 21 | Rice / Nearn / Gooding / Borella / *Gaylord | Kent Painter (USA) | Kent Racing | Chevrolet | Camaro | III | Chevrolet | GTS | |
| 23 | Curren / De Long / Borders | Curren Motorsports (USA) | Tom Curren | Oldsmobile | Cutlass | | | GTS | |
| 24 | Darquea / Paredes / Darquea / *Izurieta / *Bradley | Saeta Racing | | Toyota | Corolla | | Toyota | GTU | |
| 25 | Watkins / Kreider / Northam / DeVries / *Arpin | Kreider Racing, Inc. (USA) | Dale Kreider | Oldsmobile | Cutlass | | | GTS | |
| 26 | Pace / Smith / Slater / Hamlet | Alex Job Racing (USA) | Alex Job | Porsche | 911 | | Porsche | GTU | |
| 27 | Manthey / Mathai / Mathai | Porsche Club EV | | Porsche | 911 Carrera | RSR | Porsche | GTU | LM GT2 |
| 31 | Kuster / DeSoto / Starkey / Painter / *Gaylord | Kent Painter | | Chevrolet | Camaro | III | Chevrolet | GTS | |
| 32 | Wilson / Solano / Rico / Bernal / Malkun | Botero Racing Team | | Mazda | MX-6 | | Mazda | GTU | |
| 33 | Campbell / Thomas / Jackson | Ralph Thomas | | Mazda | RX-7 | | Mazda | GTU | |
| 35 | McDill / Juckette / McDill | Bill McDill | | Chevrolet | Camaro | | Chevrolet | GTS | |
| 36 | Dallenbach / Kuttner | Pegasus Racing (USA) | | Pegasus | | | BMW | WSC | |
| 37 | Calderari / Bryner / Mastropietro / Grassi | Chrzanowski & Klein Racing (D) | | Porsche | 964 Carrera | RSR | Porsche | GTU | LM GT2 |
| 42 | Amthor / Kuhn / de Craene / Olczyk | Rudolf Brent | Rudolf Brent | Porsche | 911 Carrera | RSR | Porsche | GTU | LM GT2 |
| 44 | Velez / Bentley / McAdam / Evans | Scandia Motorsports (USA) | | Spice | WSC94 | | Chevrolet | WSC | |
| 45 | Bender / Fossett / Fuchs / Bell | Scandia Motorsports | | Kudzu | DG-2 | WSC | Buick | WSC | |
| 47 | Thyrring / Bundy / Lässig / Nuttall | Chamberlain Engineering | | Lotus | Esprit | Sport 300 | Lotus | GTU | LM GT2 |
| 48 | Cowie / Watson / Fouché | Chamberlain Engineering | | Lotus | Esprit | Sport 300 | Lotus | GTU | LM GT2 |
| 50 | Kimbrough / Kicak / McElheny / Schmidt / Johnson / Overbagh / Montgomery | Overbagh Racing (USA) | Hoyt Overbagh | Chevrolet | Camaro | III | Chevrolet | GTS | |
| 51 | Osman / Trenery / Pattinson / Bscher | Bruce Trenery | | Oldsmobile | Cutlass | | | GTS | |
| 52 | Murry / Cilli / Jo Kirk / Lazzaro | Angelo Cilli | | Porsche | 911 | | Porsche | GTU | |
| 57 | Kryder / Miller / Ray / Del Vecchio / *Danaher | Kryderacing (USA) | | Nissan | 240SX | | Nissan | GTU | |
| 58 | Shalala / Lader / Daniel / *Tradd / *Beard | Pro Technic Racing | Sam Shalala | Porsche | 911 | | Porsche | GTU | |
| 59 | Röhrl / Stuck / Haywood / Sullivan | Brumos Porsche (USA) | | Porsche | 964 Turbo | GT America | Porsche | GTS | LM GT1 |
| 61 | Marshall / Biggs / Scrogham / Scrogham / Rost | | | Porsche | 964 Carrera | 2 | Porsche | GTU | LM GT2 |
| 62 | Theys / Shelton / Coia / Shelton / *Fengler | Shelton Sports Cars | | Ferrari | 348 | GTC | Ferrari | GTU | LM GT2 |
| 63 | Taylor / Fuller / Morgan / Downing | Downing/Atlanta (USA) | | Kudzu | DG-3 | WSC | Mazda | WSC | |
| 65 | Richter / Wlazik / Ebeling / Döbler | Heico Motorsports (D) | Dirk-Rainer Ebeling | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTU | LM GT2 |
| 68 | Pilla / Johnson / Danaher / Coker | Charles Coker, Jr. (USA) | Charles Coker, Jr. | Porsche | 944 | Turbo | Porsche | GTU | LM GT2 |
| 69 | Spreng / Müller / Jodexnis | Gustl Spreng Racing | | Porsche | 964 Carrera | RS | Porsche | GTU | LM GT2 |
| 70 | Ferran / Jones / Hendricks / Kjoller | Dynamic Air Conditioning (USA) | | Porsche | 911 | | Porsche | GTU | |
| 71 | Churchill / Churchill / Bupp / Church | Churchill Transport (USA) | Jerry Churchill | Oldsmobile | Cutlass | | | GTS | |
| 72 | Adam / Fangio II / Redman / Peters | Champion Porsche/H H Brown (USA) | | Porsche | 964 Turbo | | Porsche | GTS | LM GT1 |
| 73 | Lewis / Bourassa / Beasley / Cogbill | Jack Lewis Enterprises Ltd. | | Porsche | 911 Carrera | RSR | Porsche | GTU | |
| 75 | Millen / Morton / O'Connell | Cunningham Racing (USA) | | Nissan | 300ZX | Turbo (Z32) | Nissan | GTS | |
| 76 | Pruett / Leitzinger / Gentilozzi / Millen | Cunningham Racing (USA) | | Nissan | 300ZX | Turbo (Z32) | Nissan | GTS | |
| 77 | Cochran / de Lesseps / Aouate | Team Gunnar | | Porsche | 911 Turbo | | Porsche | GTU | LM GT2 |
| 78 | Worth / Weston / *Tremblay | Pettit Racing | Cameron Worth | Mazda | RX-7 | | Mazda | GTU | LM GT2 |
| 79 | Dören / Giribaldi / Pagotto / Angelastri | Freisinger Motorsport (D) | | Porsche | 964 Carrera | RSR 3.8 | Porsche | GTU | LM GT2 |
| 82 | Greer / Uria / Bacon / Mees / *Lingner | Wendy's Race Team (USA) | | Mazda | RX-7 | | Mazda | GTU | |
| 86 | Wollek / Dupuy / Pareja / Barth / *Leconte | Larbre Competition (F) | | Porsche | 964 Turbo | S LM | Porsche | GTS | LM GT1 |
| 87 | Annis / Beall / Lawrence / Funk / *Neyer | John Annis | John Annis | Chevrolet | Camaro | | Chevrolet | GTS | |
| 91 | Hicks / *Butt / *Johnson / *Zitza | Mel A. Butt | | Porsche | 911 | | Porsche | GTU | |
| 93 | Minneker / Nowicki / Allman / Wilden | Morrison Motorsports (USA) | | Chevrolet | Corvette | ZR-1 | Chevrolet | GTS | |
| 94 | Heinricy / Pilgrim / Hayner / Said | Morrison Motorsports (USA) | Tommy Morrison | Chevrolet | Corvette | ZR-1 | Chevrolet | GTS | LM GT1 |
| 96 | Knowles / Mirro / Sutherland / Layer / *Leitzinger | John Mirro (USA) | | Nissan | 240SX | | Nissan | GTU | |
| 99 | Ham / Gustavsson / Bodis / Sandro Sala / Konrad / Netzebrand | Konrad Motorsport (D) | | Porsche | 964 | Bi-Turbo | Porsche | GTS | LM GT1 |