| 1 | Barth / Röhrl | Porsche System (D) | | Porsche | 944 | LM | Porsche | GTP+3.0 | GTP |
| 4 | Morin / Mendez / Mathiot | WM A.E.R.E.M. (F) | | WM | P79 | /80 | Peugeot | GTP+3.0 | GTP |
| 5 | Fréquelin / Dorchy | WM A.E.R.E.M. (F) | | WM | P79 | /80 | Peugeot | GTP+3.0 | GTP |
| 6 | Morin / Mendez | WM A.E.R.E.M. (F) | | WM | P79 | /80 | Peugeot | GTP+3.0 | GTP |
| 7 | Migault / Spice | Jean Rondeau (F) | | Rondeau | M379 | C | Ford | GTP3.0 | GTP |
| 8 | Haran / Schlesser / Streiff | Jean Rondeau (F) | | Rondeau | M379 | C | Ford | GTP3.0 | GTP |
| 10 | Wollek / Lapeyre / Chasseuil | Kremer Racing (D) | | Porsche | 917 K/81 | | Porsche | S+2.0 | |
| 11 | Ickx / Bell | Porsche System (D) | | Porsche | 936 | /81 | Porsche | S+2.0 | |
| 12 | Mass / Schuppan / Haywood | Porsche System (D) | | Porsche | 936 | /81 | Porsche | S+2.0 | |
| 14 | Niedzwiedz / Jöst / Whittington | Joest Racing (D) | Reinhold Jöst | Porsche | 908/80 | | Porsche | S+2.0 | |
| 16 | Lateste / Perrier | Max Sardou (F) | | Ardex | S80 | | BMW | S+2.0 | |
| 17 | Rahal / Redman | Cooke-Woods Racing (USA) | | Lola | T600 | | Porsche | S+2.0 | |
| 18 | de Villota / Edwards / Fernandez | Team Lola (GB) | | Lola | T600 | | Ford | S+2.0 | |
| 20 | De Cadenet / Martin / Martin | Alain de Cadenet (GB/B) | | De Cadenet | Lola LM | | Ford | S+2.0 | |
| 21 | Candy / Birrane / Faure | Dorset Racing Associates (GB) | Brian Joscelyne/Tony Birchenhough | De Cadenet | Lola T380 | | Ford | S+2.0 | |
| 22 | Gaillard / Chevalley / Sotty | André Chevalley Racing (CH) | | ACR | 80 | B | Ford | S+2.0 | |
| 23 | Craft / Evans | Dome Co Ltd. (J) | | Dome | Zero RL | 81 | Ford | S+2.0 | |
| 24 | Rondeau / Jaussaud | Jean Rondeau (F) | | Rondeau | M379 | C | Ford | S+2.0 | |
| 25 | Ragnotti / Lafosse | Jean Rondeau (F) | | Rondeau | M379 | C | Ford | S+2.0 | |
| 26 | Pescarolo / Tambay | Jean Rondeau (F) | | Rondeau | M379 | C | Ford | S+2.0 | |
| 27 | Trimmer / Needell / *Bracey | Ian Bracey (F) | | Ibec | P6 | | Ford | S+2.0 | |
| 30 | Cohen-Olivar / Lemerle / Levié | Jean-Marie Lemerle (F) | Jean-Marie Lemerle | Lola | T298 | | BMW | S2.0 | |
| 31 | Grand / Courage | Jean-Philippe Grand (F) | | Lola | T298 | | BMW | S2.0 | |
| 32 | Descartes / Bayard / *Preschey | Ecurie Renard-Delmas (F) | | Renard Delmas | D1 | | ROC | S2.0 | |
| 33 | Yver / Heuclin / Dubois | Compagnie Primagaz (F) | Pierre Yver | Lola | T298 | | BMW | S2.0 | |
| 35 | Yarborough / Cooper / Hagan / *Mitchell | Stratagraph Inc. (USA) | Billy Hagan | Chevrolet | Camaro | II | Chevrolet | IMSA GTO | |
| 36 | Schurti / Rouse / *Brunn | Porsche System (D) | | Porsche | 924 | Carrera GTR | Porsche | IMSA GTO | |
| 37 | Lovett / Walkinshaw / Ikuzawa | Mazdaspeed (J) | | Mazda | RX-7 | 253i | Mazda | IMSA GTO | |
| 38 | Percy / Terada / Fushida | Mazdaspeed (J) | | Mazda | RX-7 | 253i | Mazda | IMSA GTO | |
| 39 | Vermeersch / Stiff / Ratcliff / *Honegger | Z. & W. Enterprises Inc. (USA) | | Mazda | RX-7 | | Mazda | IMSA GTU | |
| 40 | DeNarvaez / Miller / Steckkönig | Joest Racing (D) | Reinhold Jöst | Porsche | 935 | J | Porsche | IMSA GTX | |
| 41 | Henn / Chandler / Mignot | Preston B. Henn (USA) | Preston Henn | Porsche | 935 | K3/80 | Porsche | IMSA GTX | |
| 42 | Verney / Kent-Cooke / Garretson | Cooke-Woods Racing (USA) | Bob Garretson | Porsche | 935 | K3/80 | Porsche | IMSA GTX | |
| 43 | Miller / Siebert / Akin | Bob Akin Motor Racing (USA) | Bob Akin | Porsche | 935 | K3/80 | Porsche | IMSA GTX | |
| 45 | Violati / Truffo / Flammini | Scuderia Supercar Bellancauto (I) | Fabrizio Violati | Ferrari | 512 BB | /LM Pininfarina | Ferrari | IMSA GTX | |
| 46 | Dieudonné / Libert / Xhenceval | Rennod Racing (B) | | Ferrari | 512 BB | /LM | Ferrari | IMSA GTX | |
| 47 | Andruet / Ballot-Léna / *Regout | Charles Pozzi S.A. (F) | | Ferrari | 512 BB | /LM | Ferrari | IMSA GTX | |
| 48 | Earle / Salmon / Phillips | Simon Phillips (GB) | | Ferrari | 512 BB | /LM | Ferrari | IMSA GTX | |
| 49 | Cudini / Gurdjian / Morton | N.A.R.T. (USA) | | Ferrari | 512 BB | /LM | Ferrari | IMSA GTX | |
| 50 | Jarier / Stuck / Henzler | BASF Cassetten Team GS Sport (D) | | BMW | M1 | Gr.5 | BMW | IMSA GTX | +2000 |
| 51 | Darniche / Cecotto / Alliot | B.M.W. Italie-France (I/F) | Hughes de Chaunac | BMW | M1 | Gr.5 | BMW | Gr.5 | +2000 |
| 52 | Surer / Deacon / Quester | Wuerth-Lubrifilm Team Sauber (CH) | | BMW | M1 | Gr.5 | BMW | Gr.5 | +2000 |
| 53 | Hobbs / Jordan / O'Rourke | Emka Productions Ltd. (GB) | | BMW | M1 | Gr.5 | BMW | Gr.5 | +2000 |
| 55 | Cooper / Wood / Bourgoignie | Claude Bourgoignie (B) | Dudley Wood | Porsche | 935 | K3 | Porsche | Gr.5 | +2000 |
| 57 | Haldi / Poulain / Thatcher | Claude Haldi (CH) | Claude Haldi | Porsche | 935 | /77A | Porsche | Gr.5 | +2000 |
| 59 | Field / Whittington / Whittington | Porsche Kremer Racing (D) | Kremer Brothers | Porsche | 935 | K3/81 | Porsche | Gr.5 | +2000 |
| 60 | Schornstein / Grohs / von Tschirnhaus | Vegla Racing Team (D) | Dieter Schornstein | Porsche | 935 | J | Porsche | Gr.5 | +2000 |
| 61 | Dören / Holup / Lässig | Weralit Team (D) | Werner Hermann | Porsche | 935 | K3 | Porsche | Gr.5 | +2000 |
| 62 | Guérin / "Segolen" / Bussi | "Segolen" (F) | Christian Bussi | Porsche | 935 | | Porsche | Gr.5 | +2000 |
| 65 | Cheever / Alboreto / Facetti | Martini Racing (I) | | Lancia | Beta Montecarlo Turbo | | Lancia | Gr.5 | -2000 |
| 66 | Patrese / Heyer / Ghinzani | Martini Racing (I) | | Lancia | Beta Montecarlo Turbo | | Lancia | Gr.5 | -2000 |
| 67 | Pirro / Gabbiani / *Patrese | Martini Racing (I) | | Lancia | Beta Montecarlo Turbo | | Lancia | Gr.5 | -2000 |
| 68 | Finotto / Schön / Pianta | Jolly Club (I) | | Lancia | Beta Montecarlo Turbo | | Lancia | Gr.5 | -2000 |
| 69 | Lundgardh / Wilds / Plankenhorn | Tuff-Kote Dinol Racing (S) | Jan Lundgardh | Porsche | 935 | L1 | Porsche | Gr.5 | -2000 |
| 70 | Bertapelle / Perrier / Salam | Thierry Perrier (F) | Valentin Bertapelle | Porsche | 934 | | Porsche | GT | +2000 |
| 71 | Danner / von Bayern / Oberndorfer | Helmut Marko (A) | | BMW | M1 | | BMW | GT | +2000 |
| 72 | Rousselot / Servanin / Ferrier | B.M.W. ZOL' Auto (F) | | BMW | M1 | | BMW | GT | +2000 |
| 73 | Alméras / Alméras / *Sivel | Eminence Racing Team (F) | | Porsche | 924 | Carrera GTR | Porsche | GT | +2000 |
| 74 | Bond / Brock / Richards | Porsche Cars Australia (AUS) | | Porsche | 924 | Carrera GTR | Porsche | GT | +2000 |
| 75 | Dron / Lloyd | Porsche System Canon (D) | | Porsche | 924 | Carrera GTR | Porsche | GT | +2000 |
| 82 | Boutsen / Pignard / Saulnier | WM A.E.R.E.M. (F) | | WM | P81 | | Peugeot | C | |
| 83 | Mamers / Raulet / Pignard | WM A.E.R.E.M. (F) | | WM | P81 | | Peugeot | C | |
| 90 | Regout / Elkoubi / *de Dryver / *Canary | Z & W Enterprises Inc. (USA) | | McLaren | M12 GT | | Chevrolet | IMSA GTP | |