Drivers
- Sébastien Bourdais (2012–present)
- Ryan Briscoe (2007)
- Patrick Carpentier1 (2011)
- Davey Hamilton (2010)
- Katherine Legge (2012)
- Raphael Matos (2009–2010)
- Sebastián Saavedra (2013–present)
- Tomas Scheckter (2008)
- Scott Speed1 (2011)
- Paul Tracy (2011)
- Ho-Pin Tung (2011)
1Driver practiced but did not qualify for 2011 Indy 500.
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