Einladungsliste des ACO zu den Vortests
zu den 72. 24h von LeMans 2004
| Nr | Klasse | Sub-kl. | Team | Fahrer | Land | Wagen | Motor |
| 2 | P1 | LMP900 | Champion Racing | J.J.Letho, Emanuele Pirro, Marco Werner | USA | Audi R8 | Audi 3595BiT |
| 3 | P1 | LMP900 | Arena Motorsport | TBA, TBA, TBA | GB | Dome S101 | Judd 3994A |
| 5 | P1 | LMP900 | Team Goh | Seiji Ara, Rinaldo Capello, Tom Kristensen | J | Audi R8 | Audi 3595BiT |
| 6 | P1 | LMP900 | Rollcenter Racing | Martin Short, Joao Barbosa, Rob Barff | GB | Dallara | Judd 3994A |
| 7 | P1 | LMP900 | Spinnaker Clandesteam | Ricardo Augusta, Marco Cioci, Almo Coppelli | I | Dallara | Judd 3994A |
| 8 | P1 | LMP900 | Team Veloqx | Johnny Herbert, Guy Smith, Jamie Davies | GB | Audi R8 | Audi 3595BiT |
| 9 | P1 | LMP900 | Kondo Racing | Hiroki Katoh, Ryo Michigami, Hayanari Shimod | J | Dome S101 | Judd 3994A |
| 10 | P1 | LMP900 | Taurus Sports | Ben Leuenberger, TBA, TBA | GB | Lola B2K/10 | Motune 4920 |
| 11 | P1 | LMGTP | Panoz Motor Sports | TBA, TBA, TBA | USA | Panoz GTP | Elan 6000A |
| 14 | P1 | LMP1 | Team Nasamax | Robbie Stirling, Romain Dumas, TBA | GB | Reynard 2KQ | Judd 4997A |
| 15 | P1 | LMP900 | Racing for Holland | Jan Lammers, Andy Wallace, TBA | NL | Dome S101 | Judd 3994A |
| 17 | P1 | LMP900 | Pescarolo Sport | TBA, TBA, TBA | F | Pescarolo C60 | Judd 4997A |
| 18 | P1 | LMP900 | Pescarolo Sport | TBA, TBA, TBA | F | Pescarolo C60 | Judd 4997A |
| 20 | P1 | LMP900 | Lister Racing | Tom Coronell, TBA, TBA | GB | Lister LMP | Chevy 5990A |
| 22 | P1 | LMP675 | Zytek Engineering Ltd | TBA, TBA, TBA | GB | Zytek | Zytek 3396A |
| 25 | P1 | LMP675 | RML | Thomas Erdos, Chris Goodwin, Mike Newton | GB | Lola B160 | AER 1995T |
| 27 | P1 | LMP675 | Intersport Racing | Clint Field, Duncan Dayton, TBA | USA | Lola B160 | Judd 3397A |
| 29 | P1 | LMP675 | Noel del Bello | TBA, TBA, TBA | F | Reynard 2KQ | Lehmann 1999 T |
| 88 | P1 | LMP900 | Team Veloqx | Frank Biela, Pierre Kaffer, Allan McNish | GB | Audi R8 | Audi 3595BiT |
| 24 | P2 | LMP2 | Rachel Welter | TBA, TBA, TBA | F | WR | Peugeot 1999T |
| 31 | P2 | LMP2 | Courage Competition | TBA, TBA, TBA | F | Courage C65 | JPX 3400A |
| 32 | P2 | LMP675 | Intersport Racing | TBA, TBA, TBA | USA | Lola B10/40 | Judd 3397A |
| 33 | P2 | LMP2 | Courage Competition | TBA, TBA, TBA | F | Courage C65 | JPX 3400A |
| 34 | P2 | LMP2 | Epsilon Sport | TBA, TBA, TBA | F | Courage C65 | JPX 3400A |
| 35 | P2 | LMP2 | Epsilon Sport | TBA, TBA, TBA | F | Courage C65 | JPX 3400A |
| 37 | P2 | LMP2 | Paul Belmondo Racing | Paul Belmondo, Yves Gosslin, Marco Saviozzi | F | Courage C65 | AER 1995T |
| 60 | LMGTS | - | Force One Racing | Phillipe Alliot, David Halliday, TBA | F | Pagani Zonda | DC 6916A |
| 61 | LMGTS | - | Barron Connor Racing | John Bosch, Danny Sullivan, Thomas Biagi | NL | Ferrari F575 | Ferrari 5997A |
| 62 | LMGTS | - | Barron Connor Racing | Mike Hezemans, Jean-Denis Deletraz, Ange B | NL | Ferrari F575 | Ferrari 5997A |
| 63 | LMGTS | - | Corvette Racing | TBA, TBA, TBA | USA | Corvette C5-R | Chevy 6991A |
| 64 | LMGTS | - | Corvette Racing | TBA, TBA, TBA | USA | Corvette C5-R | Chevy 6991A |
| 65 | LMGTS | - | Prodrive Racing | TBA, TBA, TBA | GB | Ferrari F550 | Ferrari 5853A |
| 66 | LMGTS | - | Prodrive Racing | TBA, TBA, TBA | GB | Ferrari F550 | Ferrari 5853A |
| 67 | LMGTS | - | CARE Racing | TBA, TBA, TBA | GB | Ferrari F550 | Ferrari 5853A |
| 68 | LMGTS | - | BMS Scuderia Italia | TBA, TBA, TBA | I | Ferrari F550 | Ferrari 5853A |
| 69 | LMGTS | - | Labre Competition | TBA, TBA, TBA | F | Ferrari F550 | Ferrari 5853A |
| 70 | LMGT | - | JMB Racing | TBA, TBA, TBA | F | Ferrari 360 Modena | Ferrari 3586A |
| 72 | LMGT | - | Luc Alphand Adventures | Luc Alphand, James Ruffier, Soheil Ayari | F | Porsche 996 GT3 RS | Porsche 3596A |
| 77 | LMGT | - | Choroq Racing Team | Nishizawa Kazuyuki, Haruki Kurosawa, TBA | J | Porsche 996 GT3 RSR | Porsche 3596A |
| 78 | LMGT | - | PK Sport Ltd | TBA, TBA, TBA | GB | Porsche 996 GT3 RS | Porsche 3596A |
| 80 | LMGT | - | Morgan Works Race Tea | TBA, TBA, TBA | GB | Morgan Aero 8 | BMW 4494A |
| 81 | LMGT | - | The Racers Goup | TBA, TBA, TBA | USA | Porsche 996 GT3 RSR | Porsche 3596A |
| 83 | LMGT | - | Seikel Motorsport | Tony Burgess, Phillip Collin, TBA | D | Porsche 996 GT3 RS | Porsche 3596A |
| 85 | LMGT | - | Freisinger Motorsport | Stephane Ortelli, TBA, TBA | D | Porsche 996 GT3 RSR | Porsche 3596A |
| 86 | LMGT | - | Freisinger Motorsport | TBA, TBA, TBA | D | Porsche 996 GT3 RSR | Porsche 3596A |
| 87 | LMGT | - | Orbit | Peter Barron, Leon Hindrey, Mike Rockenfeller | USA | Porsche 996 GT3 RSR | Porsche 3596A |
| 89 | LMGT | - | Chamberlain-Synergy | TBA, TBA, TBA | GB | TVR Tuscan 400 R | TVR 3996A |
| 90 | LMGT | - | White Lightning Racing | TBA, TBA, TBA | USA | Porsche 996 GT3 RSR | Porsche 3596A |
| 92 | LMGT | - | Cirtek Motorsport | TBA, TBA, TBA | A | Ferrari 360 Modena | Ferrari 3586A |
| 95 | LMGT | - | Risi Competitione | Ralf Kelleners, Anthony Lazarro, TBA | USA | Ferrari 360 Modena | Ferrari 3586A |
| Reserve | |||||||
| 4 | P1 | LMP900 | Taurus Sports | TBA, TBA, TBA | GB | Lola B2K/10 | Judd 3994A |
| 75 | LMGT | - | Therry Perrier | TBA, TBA, TBA | F | Porsche 996 GT3 RS | Porsche 3596A |
| 99 | LMGT | - | XL-Racing | TBA, TBA, TBA | F | Ferrari F550 | Ferrari 5474A |
| 16 | P1 | LMP900 | Racing for Holland | TBA, TBA, TBA | NL | Dome S101 | Judd 3994A |
| 90 | LMGT | - | Chamberlain-Synergy | TBA, TBA, TBA | GB | TVR Tuscan 400 R | TVR 3996A |
| 84 | LMGT | - | Seikel Motorsport | TBA, TBA, TBA | D | Porsche 996 GT3 RS | Porsche 3596A |