| # | Pilotos (EST/PAÍS) | Pacote/Equipe | Classe |
| 1 | Alex Lloyd (EUA)
Scott Pruett (EUA)
Memo Rojas (MEX) | Lexus / Riley
Chip Ganassi Racing with Felix Sabates | DP |
| 6 | Ian James (EUA)
Raphael Matos (BRA)
John Pew (EUA) | Ford / Riley
Michael Shank Racing | DP |
| 7 | Stephan Gregoire (FRA)
Matt Plumb (EUA)
Gene Sigal (EUA) | BMW / Riley
Rum Bum Racing | DP |
| 10 | Max Angelelli (ITA)
Michael Valiante (CAN) | Pontiac / Dallara
SunTrust Racing | DP |
| 16 | Christian Fittipaldi (BRA)
Antonio Garcia (ESP) | Pontiac / Coyote
Cheever Racing | DP |
| 22 | Marc Basseng (ALE)
Carlos de Quesada (EUA)
Jean-Francois Dumoulin (CAN) | Porsche / Riley
Alegra Motorsports | DP |
| 23 | Bill Auberlen (EUA)
Joey Hand (EUA) | Porsche / Riley
Alex Job Racing | DP |
| 58 | David Donohue (EUA)
Darren Law (EUA)
Buddy Rice (EUA) | Porsche / Riley
Brumos Racing | DP |
| 59 | João Barbosa (POR)
JC France (EUA)
Hurley Haywood (EUA) | Porsche / Riley
Brumos Racing | DP |
| 60 | Ryan Dalziel (EUA)
Oswaldo Negri Jr (BRA)
Mark Patterson (EUA) | Ford / Riley
Michael Shank Racing | DP |
| 61 | Brian Frisselle (EUA)
Mark Wilkins (CAN)
Cristiano da Matta (BRA) | Ford / Riley
AIM Autosport | DP |
| 75 | Tracy Krohn (EUA)
Boris Said (EUA)
Eric Van De Poele (BEL) | Pontiac / Lola
Krohn Racing | DP |
| 76 | Nic Jonsson (SUE)
Ricardo Zonta (BRA) | Pontiac / Lola
Krohn Racing | DP |
| 77 | Burt Frisselle (EUA)
Memo Gidley (EUA)
Brad Jaeger (EUA) | Ford / Dallara
Doran Racing | DP |
| 91 | Marc Goossens (BEL)
Ryan Hunter-Reay (EUA)
Jim Matthews (EUA) | Pontiac / Riley
Bob Stallings/ Riley-Matthews | DP |
| 99 | Jon Fogarty (EUA)
Alex Gurney (EUA)
Jimmy Vasser (EUA) | Pontiac / Riley
GAINSCO/ Bob Stallings Racing | DP |
| 6 | Paul Edwards (EUA)
Leighton Reese (EUA) | Pontiac GXP.R
Banner Racing | GT |
| 7 | Lawson Aschenbach (EUA)
Kelly Collins (EUA)
Paul Edwards (EUA) | Pontiac GXP.R
Banner Racing | GT |
| 21 | Diego Alessi (ITA)
Matt Connolly (EUA)
Romeo Kapudija (EUA) | Pontiac GTO.R
Matt Connolly Motorsports | GT |
| 27 | Kevin O'Connell (EUA)
Kevin Roush (EUA) | Porsche GT3
O'Connell Racing | GT |
| 30 | Jose Armengol (EUA)
Jose Armengol (EUA)
Doug Peterson (EUA) | Mazda RX-8
Racers Edge Motorsports | GT |
| 32 | Patrick Barrett (EUA)
Mike Forest (CAN) | Pontiac GXP.R
PR1 Motorsports | GT |
| 40 | Patrick Dempsey (EUA)
Joe Foster (EUA) | Mazda RX-8
Hyper Sport | GT |
| 42 | Joe Nonnamaker (EUA)
Wayne Nonnamaker (EUA)
Will Nonnamaker (EUA) | Corvette
Team Sahlen | GT |
| 43 | Joe Nonnamaker (EUA)
Wayne Nonnamaker (EUA)
Will Nonnamaker (EUA) | Corvette
Team Sahlen | GT |
| 53 | Mike Borkowski (EUA)
Tommy Constantine (AFS) | BMW M6
Playboy Racing | GT |
| 55 | Christophe Bouchut (FRA)
Scott Tucker (EUA)
Ed Zabinski (EUA) | Ferrari 430 Challenge
LevelFive Motorsports | GT |
| 57 | Andrew Davis (EUA)
Robin Liddell (ESC) | Pontiac GXP.R
Stevenson Motorsports | GT |
| 65 | Josemanuel Gutierrez (MEX)
John Potter (EUA)
Craig Stanton (EUA) | Porsche GT3
TRG/Riegel Autosport | GT |
| 66 | Ted Ballou (EUA)
Spencer Pumpelly (EUA)
Bryan Sellers (EUA) | Porsche GT3
TRG | GT |
| 67 | Tim George Jr (EUA)
Andy Lally (EUA)
Patrick Long (EUA) | Porsche GT3
TRG | GT |
| 69 | Emil Assentato (EUA)
Nick Longhi (EUA)
Jeff Segal (EUA) | Mazda RX-8
SpeedSource | GT |
| 70 | Nick Ham (EUA)
David Haskell (EUA)
Sylvain Tremblay (EUA) | Mazda RX-8
SpeedSource | GT |
| 72 | Terry Borcheller (EUA)
Tim Lewis Jr (EUA) | Pontiac GXP.R
Autohaus Motorsports | GT |
| 86 | Dominik Farnbacher (ALE)
Leh Keen (EUA)
Eric Lux (EUA) | Porsche GT3
Farnbacher Loles Racing | GT |
| 87 | Wolf Henzler (ALE)
Bryce Miller (EUA)
Dirk Werner (ALE) | Porsche GT3
Farnbacher Loles Racing | GT |
| 88 | Steve Johnson (EUA)
Dave Lacey (CAN) | Porsche GT3
Farnbacher Loles Racing | GT |
