| 00 | Jeannette / Block / Jackson | Gunnar Racing (USA) | | Panoz | LMP-1 Roadster S | | Elan | LMP900 |
| 5 | Bingham / Rice / MacLeod | Park Place Racing (USA) | | Saleen | S7-R | | Ford | GTS |
| 12 | Kox / Hill / Hugenholtz | Spyker Squadron (NL) | | Spyker | C8 Double 12R | | BMW | GT |
| 17 | Duno / Maxwell / Graham | MBD Sportscar (USA) | | Panoz | LMP07 | | Mugen | LMP900 |
| 18 | Graham / de Radigues / Lambert / Sutherland | MBD Sportscar (USA) | | Panoz | LMP07 | | Mugen | LMP900 |
| 19 | Lupberger / Bell / Kolby | Team Ascari (GB) | | Ascari | KZR-1 | | Judd | LMP900 |
| 20 | Dyson / Forbes-Robinson / Schroeder / Dyson | Dyson Racing Team Inc (USA) | | Riley & Scott | Mk III | | Ford | LMP900 |
| 21 | Collins / Vann / Wilson | Team Ascari (GB) | | Ascari | KZR-1 | | Judd | LMP900 |
| 24 | Terada / Downing / Fergus | AutoExe Motorsports (J) | | WR | LMP-02 | (AutoExe) | Mazda | LMP675 |
| 25 | Slater / Brun / Pickering | Konrad Motorsport (D) | | Saleen | S7-R | | Ford | GTS |
| 27 | Theys / Lienhard / Baldi | Doran Lista Racing (USA) | | Dallara | SP1 | | Judd | LMP900 |
| 28 | de Fournoux / Daoudi / Smith | Welter Racing (F) | | WR | LM 2001 | | Peugeot | LMP675 |
| 29 | Earle / Hayden / Griffiths | Sebah Automotive Limited (GB) | Hugh Hayden | Porsche | 996 GT3-R | | Porsche | GT |
| 31 | Montermini / Argetsinger / Hunter-Reay | JMB Racing (F) | | Ferrari | 360 Modena | N-GT | Ferrari | GT |
| 32 | Negri / Garbagnati / Vannini | JMB Racing (F) | | Ferrari | 360 Modena | N-GT | Ferrari | GT |
| 33 | Kelleners / Franchitti | MSB Motorsport (USA) | | Ferrari | 360 Modena | GT | Ferrari | GT |
| 36 | Goossens / Smith / Matthews | Riley & Scott Racing (USA) | | Riley & Scott | Mk III C | | Elan | LMP900 |
| 40 | Jones / Jones / Jones | Racing Organisation Course (F) | | Reynard | 2KQ | | VW | LMP675 |
| 41 | Delétraz / Smithson / Pillon | Noel Del Bello Racing (F) | | Reynard | 2KQ | | VW | LMP675 |
| 46 | Hezemans / Kumpen / Cappellari | Team Carsport Holland (NL) | | Chrysler | Viper | GTS-R | Chrysler | GTS |
| 52 | Plumb / Bagnall / Collin | Seikel Motorsport (D) | Peter Seikel | Porsche | 996 GT3-RS | | Porsche | GT |
| 53 | Caffi / Riccitelli / Rosa | Seikel Motorsport (D) | Peter Seikel | Porsche | 996 GT3-RS | | Porsche | GT |
| 57 | Dumas / Amorim / Fertl | Freisinger Motorsport (D) | | Porsche | 996 GT3-RS | | Porsche | GT |
| 58 | Vance / Southard | Freisinger Motorsport (D) | | Porsche | 996 GT3-RS | | Porsche | GT |
| 60 | Babini / Anapoli / Liddell | P.K. Sport Ltd. (GB) | Mike Pickup | Porsche | 996 GT3-RS | | Porsche | GT |
| 61 | Alexander / Demeroutis / Masarati | P.K. Sport Ltd. (GB) | | Porsche | 996 GT3-R | | Porsche | GT |
| 62 | Spencer / Grupp | Team Spencer Motorsports (USA) | | Lola | B2K/40 | | Mazda | LMP675 |
| 65 | Rymer / Youles / Mowlem | Harlow Motorsport - Ricardo (GB) | | Porsche | 996 GT3-R | | Porsche | GT |
| 69 | Wankum / Foster / Bundy | Kyser Racing (CDN) | Kye Wankum | Lola | B2K/40 | | Nissan | LMP675 |
| 77 | Menu / Rydell / Enge | Prodrive (GB) | | Ferrari | 550 Maranello | GTS | Ferrari | GTS |
| 83 | Erdos / McKellar / Johnson | Graham Nash Motorsport (GB) | | Saleen | S7-R | | Ford | GTS |
| 85 | Clément / Ahrlé / Simmenauer | 917 Racing Team (F) | | Porsche | 996 GT3-RS | | Porsche | GT |
| 86 | Bouchut / Vosse / Chéreau | Larbre Competition Chereau (F) | | Chrysler | Viper | GTS-R | Chrysler | GTS |
| 99 | Gleason / Dawson / Gooding | Cirtek Motorsport (USA) | | Porsche | 996 GT3-R | | Porsche | GT |