The Renault team is switching a lot of their resources to the 2012 F1 car which is very challenging says tram boss Eric Boullier.

Eric Boullier: We are now at a point where we switch a lot of our resources to next year's car, which of course adds new challenges. Crucially, we need to see what impact our upgrades have at the forthcoming races in Spa, Monza and Singapore.