 He pushed too hard on the slippery surface and beached his car in the gravel trap.Glock took the victory in the sprint race and earned one additional point for the fastest lap to clinch the title while di Grassi struggled throughout to finish outside of the top ten.Di Grassi had no intentions of remaining in GP2 for 2008 as due to his relationship with Renault he was developing the series's new Dallara GP2/08 chassis in addition to his Formula One test and reserve driver duties.