| Nr. | Pilotos (NAC) | Carro | Cat | Equipe |
| 2 | Andy Wallace (ING)
Tony Stewart (EUA)
Dale Earnhardt Jr (EUA) | Chevrolet Crawford | DP | Howard - Boss Motorsports |
| 4 | Butch Leitzinger (EUA)
David Brule Senior (EUA)
Elliott Forbes-Robinson (EUA)
Jimmie Johnson (EUA) | Chevrolet Crawford | DP | Howard - Boss Motorsports |
| 5 | Joe Pruskowski (EUA)
Justin Pruskowski (EUA)
Ross Bentley (CAN)
Scott Maxwell (CAN) | Ford
Multimatic | DP | Essex Racing |
| 6 | Brent Martini (EUA)
Cort Wagner (EUA)
Mike Newton (ING)
Thomas Erdos (BRA) | Lexus
Doran | DP | Michael Shank Racing |
| 7 | Shane Lewis (EUA)
Jack Baldwin (EUA)
George Robinson (EUA)
Vic Rice (EUA)
Steve Southard (EUA) | BMW
Fabcar | DP | Southard Motorsports |
| 9 | Paul Mears Jr (EUA)
Mike Borkowski (EUA)
Arie Luyendyk Jr, (EUA)
Nick Ham (EUA) | Ford
Multimatic | DP | Mears Motorcoach / SpeedSource |
| 10 | Wayne Taylor (EUA)
Max Angelelli (ITA)
Emmanuel Collard (FRA) | Pontiac
Riley | DP | SunTrust Racing |
| 11 | Iradj Alexander (SUI)
Edi Gay (EUA)
Diego Alessi (ITA)
Maurizio Mediani (ITA)
Paul Dana (EUA) | Ferrari 360
GT | GT | JMB Racing USA |
| 13 | Andrew Davis (EUA)
Michael Cawley (EUA)
Charles Espenlaub (EUA)
Joe Foster (EUA) | Porsche GT3 Cup | SGS | Foxhill Racing |
| 14 | Cory Friedman (EUA)
Lynn Wilson (EUA)
Bransen Patch (EUA)
Adam Merzon (EUA)
Mike Smith (EUA) | Porsche GT3 Cup | SGS | Autometrics Motorsports |
| 15 | Don Kitch Jr, (EUA)
David Gaylord (EUA)
John Olson (EUA)
Tom Hessert Jr (EUA)
Tom Hessert III (EUA) | Ford
Multimatic | DP | Essex Racing |
| 16 | Craig Stanton (EUA)
David Murry (EUA)
Tim Sugden (ING) | Porsche GT3 Cup | SGS | AASCO Motorsports |
| 17 | Mark Webber (EUA)
Joe Kunz (EUA)
Gary Becker (EUA)
Patrick Flanagan (EUA)
Derek Clark (EUA) | Porsche GT3 Cup | SGS | AASCO Motorsports |
| 21 | Bill Auberlen (EUA)
Boris Said (EUA)
Justin Marks (EUA)
Joey Hand (EUA)
Niclas Jonsson (EUA) | BMW M3 | GT | Prototype Technology Group |
| 22 | Justin Marks (EUA)
Joey Hand (EUA)
Boris Said (EUA)
Bill Auberlen (EUA)
Niclas Jonsson (EUA) | BMW M3 | GT | Prototype Technology Group |
| 24 | John Heinricy (EUA)
Jeff Nowicki (EUA)
Tom Bambard (EUA)
Pete Halsmer (EUA) | Corvette | GT | Specter Werks / Sports |
| 27 | Didier Theys (BEL)
Fredy Lienhard (SUI)
Jan Lammers (HOL)
Marc Goossens (BEL) | Lexus
Doran | DP | Doran Lista Racing |
| 30 | Ralf Kelleners (ALE)
Anthony Lazzaro (EUA)
Matteo Bobbi (ITA) | Maserati Light GT | GT | Risi Competizione |
| 33 | Fabrizio De Simone (ITA)
Stephen Earle (EUA)
Emil Assentato (EUA)
Nick Longhi (EUA) | Maserati
Trofeo | GT | Scuderia Ferrari of Washington |
| 38 | Randy Pobst (EUA)
Marc Bunting (EUA)
Andy Lally (EUA)
John Littlechild (EUA)
Michael Levitas (EUA) | Porsche GT3 Cup | SGS | TPC Racing |
| 41 | Joe Nonnamaker (EUA)
Will Nonnamaker (EUA)
Charlie Menard (EUA)
Paul Menard (EUA)
Wayne Nonnamaker (EUA) | Porsche GT3 Cup | SGS | Orison-Planet Earth Motorsports |
| 42 | ?? | Porsche GT3 Cup | SGS | TheRaceSite.com Racing |
| 44 | Mike Fitzgerald (EUA)
Joe Policastro (EUA)
Jay Policastro (EUA)
Robin Liddell (ESC)
Johnny Mowlem (ING) | Porsche GT3
RS | GT | Orbit Racing |
| 45 | Gunnar Jeannette (EUA)
Kyle Petty (EUA)
Paul Newman (EUA)
Michael Brockman (EUA) | Porsche
Fabcar | DP | Gunnar Racing |
| 46 | Peter Argetsinger (EUA)
John Pew (EUA)
Mark Patterson (EUA)
Dario Cioti (EUA)
Jim Victor (EUA) | Corvette | SGS | Michael Baughman Racing |
| 47 | Michael Baughman (EUA)
Bob Ward (EUA)
Brad Jaeger (EUA)
Frank Del Vecchio (EUA) | Porsche GT3 Cup | SGS | Michael Baughman Racing |
| 54 | Forest Barber (EUA)
Terry Borcheller (EUA)
Andy Pilgrim (EUA)
Christian Fittipaldi (BRA) | Pontiac
Doran | DP | Bell Motorsports |
| 56 | Tony Burgess (CAN)
Philip Collin (EUA)
Peter van Merksteijn (HOL)
Gabrio Rosa (ITA)
Fabio Rosa (ITA) | Porsche GT3
RS | GT | Seikel Motor Sport |
| 57 | Chip Vance (EUA)
John Stevenson (EUA)
John Buttermore (EUA)
Piers Masarati (ING) | Porsche GT3
RS | GT | Stevenson Motorsports / Auto Assets |
| 58 | David Donohue (EUA)
Darren Law (EUA)
Sascha Maassen (BEL)
Lucas Luhr (ALE) | Porsche
Fabcar | DP | Red Bull - Brumos Porsche |
| 59 | Hurley Haywood (EUA)
JC France (EUA)
Scott Sharp (EUA)
Tommy Riggins (EUA) | Porsche
Fabcar | DP | Brumos Racing |
| 60 | Anthony Puleo (EUA)
Robert Dubler (SUI)
Squeak Kennedy (EUA)
Joe Evans (EUA) | Corvette | GT | Xtreme Racing Group |
| 63 | Geoff Escalette (EUA)
Hugh Plumb (EUA)
Kim Wolfkill (EUA)
Mike Lewis (EUA) | Porsche GT3 Cup | SGS | Glenn Yee Motorsports |
| 66 | Kevin Buckler (EUA)
Timo Bernhard (ALE)
Jorg Bergmeister (ALE)
Patrick Long (EUA) | Porsche GT3
RS | GT | The Racers Group / Monster Cable |
| 67 | Pierre Ehret (EUA)
Jim Matthews (EUA)
Lars Nielsen (DIN)
Robert Nearn (ING) | Porsche GT3
RS | GT | The Racers Group / Monster Cable |
| 68 | RJ Valentine (EUA)
Chris Gleason (EUA)
Abraham Zimroth (EUA)
Bohdan Kroczek (EUA)
Ian James (EUA) | Porsche GT3
RS | GT | The Racers Group / Monster Cable |
| 70 | Selby Wellman (EUA)
Sylvain Tremblay (EUA)
Larry Huang (EUA)
Chris Hall (EUA) | Ford
Multimatic | DP | SpeedSource |
| 71 | Dave Lacey (CAN)
Greg Wilkins (CAN)
Kenny Wilden (CAN)
Mark Wilkins (CAN)
Tom Nastasi (CAN) | Porsche GT3 Cup | SGS | Doncaster Racing |
| 72 | Jack Lewis (EUA)
Edison Lluch (PRI)
Tom McGlynn (EUA)
Manuel Matos (PRI) | Porsche GT3 Cup | GT | Jack Lewis Enterprises |
| 73 | Klaus Engelhorn (AUT)
Dieter Quester (AUT)
Philipp Peter (AUT)
Andrea Montermini (ITA) | Ferrari 360 Modena | GT | Red Bull BE Racing |
| 74 | Johannes van_Overbeek (EUA)
Seth Neiman (EUA)
Lonnie Pechnik (EUA)
Peter Cunningham (EUA)
Mike Rockenfeller (ALE) | Porsche GT3 Cup | GT | Flying Lizard Motorsports |
| 75 | Seth Neiman (EUA)
Lonnie Pechnik (EUA)
Johannes van_Overbeek (EUA)
Peter Cunningham (EUA)
Mike Rockenfeller (ALE) | Porsche GT3
RS | GT | Flying Lizard Motorsports |
| 80 | Hugo Guenette (CAN)
Steve Marshall (EUA)
Danny Marshall (EUA)
Fabio Spatafora (EUA) | BMW
Picchio | DP | G&W Motorsports |
| 82 | Jim Brillhart (EUA)
Terry Heath (EUA)
Jack Henricks (EUA)
Steve Lynn (EUA) | Porsche GT3 Cup | SGS | dds Racing |
| 83 | Rob Wilson (NZL)
Frank Mountain (ING) | Porsche GT3
RS | GT | Cirtek Motorsport |
| 86 | Andres Van Der Dys (EUA)
Mae Van Wijk (EUA)
Armando Trentini (EUA)
Tracy Krohn (EUA) | Porsche GT3 Cup | SGS | G&W Motorsports |
| 88 | Pedro Couceiro (POR)
Miguel Amaral (POR)
Carlos Barbot (POR)
Manuel Giao (POR) | Porsche GT3
RS | GT | ASM Team |
| 91 | Robert Julien (CAN)
Jean-Francois Dumoulin (CAN)
Greg Pootmans (CAN)
Marc Lieb (CAN) | Porsche GT3 Cup | SGS | Doncaster Racing |
| 93 | Luca Drudi (ITA)
Matteo Meneghello (ITA)
Ferdinando Monfardini (ITA) | Ferrari 360
GT | GT | Mastercar |
| 94 | Mauro Casadei (ITA)
Francois Labhardt (SUI)
Manfred Jurasz (AUT)
Jim Michaelian (EUA) | Ferrari 360
GT | GT | Mastercar |
| 97 | Richard Stanton (EUA)
Kurt Teal (EUA)
Paul Jenkins (EUA) | Porsche GT3
RS | GT | Graham Nash Motorsport |
| 98 | Ron Zitza (EUA)
Bill Riddell (EUA)
Hartmut Von Seelen (EUA)
Marc Feinstein (EUA)
Catesby Jones (EUA) | Porsche GT3 Cup | GT | GT Technologies |
| 00 | Doug Baron (EUA)
Steve Bernheim (EUA)
Dwain Dement (EUA)
Dennis Puddester (EUA) | Porsche GT3 Cup | SGS | Team Vision |
| 01 | Scott Pruett (EUA)
Max Papis (ITA)
Jimmy Morales (MEX) | Lexus
Riley | DP | CGR Grand Am |
| 09 | Doug Goad (EUA)
Stephan Gregoire (EUA)
Robby Gordon (EUA)
Milka Duno (VEN) | Pontiac
Crawford | DP | Spirit of Daytona Racing |
