| Marco Andretti (USA) |
Andretti Autosport |
| Ana Beatriz (BRA) |
Dreyer & Reinbold Racing |
| Ryan Briscoe (AUS) |
Team Penske |
| Helio Castroneves (BRA) |
Team Penske |
| Mike Conway (GB) |
Dreyer & Reinbold Racing |
| Simona De Silvestro (CH) |
HVM Racing |
| Scott Dixon (NZL) |
Target Chip Ganassi Racing |
| Milka Duno (VEN) |
Dale Coyne Racing |
| Sarah Fisher (USA) |
Sarah Fisher Racing |
| Dario Franchitti (SCO) |
Target Chip Ganassi Racing |
| Davey Hamilton (USA) |
de Ferran Luczo Dragon Racing |
| Jay Howard (GB) |
Sarah Fisher Racing |
| Ryan Hunter-Reay (USA) |
Andretti Autosport |
| Tony Kanaan (BRA) |
Andretti Autosport |
| Raphael Matos (BRA) |
de Ferran Luczo Dragon Racing |
| Vitor Meira (BRA) |
A.J. Foyt Enterprises |
| Hideki Mutoh (JAP) |
Newman/Haas/Lanigan Racing |
| Danica Patrick (USA) |
Andretti Autosport |
| Will Power (AUS) |
Team Penske |
| Mario Romancini (BRA) |
Conquest Racing |
| Takuma Sato (JAP) |
KV Racing Technology |
| Alex Tagliani (CAN) |
FAZZT Race Team |
| E.J. Viso (VEN) |
KV Racing Technology |
| Dan Wheldon (GB) |
Panther Racing |
| Justin Wilson (GB) |
Dreyer & Reinbold Racing |
