| 01 | Rohr / Pilgrim / Haywood | Rohr Corp. (USA) | Jochen Rohr | Porsche | 993 GT2 | R | Porsche | GTS-1 |
| 02 | Rohr / Pilgrim / Haywood | Roock Motorsport (D) | Fabian Roock | Porsche | 993 GT2 | | Porsche | GTS-1 |
| 03 | McCarthy / Waddell / *Hahne | URD-Rennwagenbau-USA, Inc. | | URD | WSC96 | | BMW | WSC |
| 1 | Taylor / van de Poele | Doyle Racing/Riley & Scott (USA) | | Riley & Scott | Mk III | | Oldsmobile | WSC |
| 2 | Epps / Barker / *Stanton | Turning Point Racing (USA) | | Porsche | 911 | | Porsche | GTS-3 |
| 3 | Velez / Dibos | Dibos Racing (PE) | Steve McCaughey | Ferrari | 333 SP | | Ferrari | WSC |
| 4 | Pace / Jochamowitz | Dibos Racing (PE) | | Riley & Scott | Mk III | | Oldsmobile | WSC |
| 6 | Hill / Auberlen / Quiros | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GTS-3 |
| 7 | Duez / Said / Quester / *Hessert / *Quiros / *Hill | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GTS-3 |
| 8 | Camferdam / O'Connell | Henry Camferdam, Jr. | | Hawk | C-8 | | Chevrolet | WSC |
| 10 | Said / *Auberlen | Prototype Technology Group (USA) | | BMW | M3 | E36 | BMW | GTS-3 |
| 12 | Fairbanks / Goldsborough / Tremblay | Team South Carolina | Rick Fairbanks | Hawk | MD3R | | Mazda | WSC |
| 15 | Miller / Gregg | LG Motorsports | | Ford | Mustang Cobra | | Ford | GTS-3 |
| 16 | Forbes-Robinson / Leitzinger / Weaver | Dyson Racing (USA) | | Riley & Scott | Mk III | | Ford | WSC |
| 17 | Schubot / *Mucha / *Guimont | Scott Schubot | | Courage | C41 | | Oldsmobile | WSC |
| 18 | Boissoneau / Renna / Loring | RAE Motorsports Inc. | | Mazda | RX-7 | | Mazda | GTS-3 |
| 19 | Davin / Montgomery | Davin Racing | | Argo | P | | BMW | WSC |
| 20 | Dyson / Schneider / *McCarthy / *Wallace | Dyson Racing (USA) | | Riley & Scott | Mk III | | Ford | WSC |
| 27 | Maxwell / *Priestley | Multimatic Motorsport | | Ford | Mustang Cobra | | Ford | GTS-1 |
| 28 | Field / Kuttner | FAB Factory Motorsport (USA) | | Spice | SC95 | | Oldsmobile | WSC |
| 30 | Montermini / Hermann / *Theys / *Moretti | Moretti Racing (I) | | Ferrari | 333 SP | | Ferrari | WSC |
| 32 | McNeely / Michaelian / *Weinberg / *Aquilante / *Heinricy | Phoenix American Motors | Joe Aquilante | Pontiac | Firebird | | Pontiac | GTS-2 |
| 33 | Trinkler / Lewis / *Mirro | FAB Factory Motorsport (USA) | Fabian Dressler | Kudzu | DG-2 | WSC | Buick | WSC |
| 39 | Murry / Matthews / Collins | Jim Mathews Racing | | Porsche | 993 | | Porsche | GTS-3 |
| 41 | Cervelli / Fairchild | Team Technodyne | | Porsche | 993 Carrera | RSR | Porsche | GTS-3 |
| 43 | Salazar / Morgan | Central Arkansas Racing Services, Inc. | Steve McCaughey | Ferrari | 333 SP | | Ferrari | WSC |
| 45 | Goodyear / Davies | Davies Motorsports (USA) | Ed Davies | Porsche | 993 Turbo | | Porsche | GTS-1 |
| 53 | Snow / Pace | Melanie Snow (USA) | | Porsche | 993 GT2 | | Porsche | GTS-2 |
| 56 | Snow / Pobst / *Collin | Martin Snow (USA) | Martin Snow | Porsche | 993 GT2 | | Porsche | GTS-2 |
| 57 | Del Vecchio / Basso / Oag / *Kryder | Kryderacing (USA) | | Nissan | 240SX | | Nissan | GTS-3 |
| 59 | Gigliotti / Gregg / Turner / Miller | LG Motorsports | | Ford | Mustang Cobra | | Ford | GTS-3 |
| 61 | Konrad / Ham / Ligonnet | Konrad Motorsport (D) | Franz Konrad | Porsche | 993 GT2 | | Porsche | GTS-2 |
| 62 | Scheuren / Jones / Green | Diablo Racing (USA) | Tom Scheuren | Chevrolet | Camaro | III | Chevrolet | GTS-1 |
| 63 | Downing / McAdam / Katz | Downing/Atlanta Racing (USA) | | Kudzu | DLM | | Mazda | WSC |
| 66 | Wallace / Bundy / Brabham | Panoz Motorsports (USA) | Don Panoz | Panoz | GTR-1 | | Ford | GTS-1 |
| 71 | Pilla / Kimbrough / *Kicak | Art Pilla | | Porsche | 993 GT2 | Evo | Porsche | GTS-1 |
| 73 | Lewis / Mathewson / Upton | Jack Lewis Enterprises | | Porsche | 993 Carrera | RSR | Porsche | GTS-3 |
| 76 | Collins / Moser / *Blackman | Team A.R.E. (USA) | Richard Raimist | Porsche | 993 Carrera | RSR | Porsche | GTS-3 |
| 77 | Halsmer / Morton / *Cohen | Mattco Racing (USA) | Matthew Cohen | BMW | M3 | E36 | BMW | GTS-3 |
| 80 | Perelle / Hacker / Borcheller | Dave Perelle (USA) | David Perelle | Oldsmobile | Cutlass | Supreme | | GTS-1 |
| 86 | Cobb / Marshall / *Marshall | G & W Motorsports | | Porsche | 993 Cup | | Porsche | GTS-3 |
| 88 | Bentley / Jones | MSI Racing | | Riley & Scott | Mk III | | Chevrolet | WSC |
| 89 | Dittmer / Gagliardo | Tag Racing | | Porsche | 993 | | Porsche | GTS-3 |
| 91 | Hayner / Schramm | Rock Valley Oil & Chemical Co. Inc. | | Chevrolet | Camaro | | Chevrolet | GTS-1 |
| 98 | Dittmer / Gagliardo | Tag Racing | | Porsche | 993 Carrera | RSR | Porsche | GTS-3 |
| 99 | Schumacher / O'Steen | Schumacher Racing (USA) | | Porsche | 993 GT2 | | Porsche | GTS-2 |