René Rast Robert Wickens Raffaele Marciello Ryan Briscoe Rene Binder Ryan Hunter-Reay Renger van der Zande Rubens Barrichello Roberto Gonzalez Romain Dumas Robin Frijns Rolf Ineichen Richard Lietz Rahel Frey Ricky Taylor Richard Heistand Ryan Dalziel Robby Foley Ryan Cullen Richard Westbrook Remo Ruscitti Ross Gunn Robert Renauer Richard Antinucci Robert Masson Ryan Lewis Roman De Angelis R.C. Enerson Rik Breukers Rino Mastronardi Rodrigo Sales Robin Liddell Rui Andrade Ryan Eversley Raffaele Giammaria Riccardo Agostini Richie Stanaway Reinhold Renger Rory van der Steur