Scotsman Di Resta and German Adrian Sutil helped take the wraps off the new car at the team's Silverstone base.

BBC: Force India take wraps off F1 car for 2011 season

Liuzzi's German team mate Adrian Sutil, who had suffered a driveshaft failure in final practice, qualified 14th but will be demoted five places on the starting grid for an unscheduled gearbox change.

BBC: Sebastian Vettel pips Fernando Alonso to German F1 pole

German Nico Rosberg finished eighth for Williams ahead of Force India's Adrian Sutil and outgoing champion Lewis Hamilton, who was 10th for McLaren Mercedes.

CNN: Alonso quickest in Brazil Grand Prix practice