Romain Grosjean cemented his place at the top of the GP2 standings with a dominant victory in race two at Silverstone.
The championship leader climbed from fifth to third on the first lap, passing Sam Bird and stalled front row starter Stefano Coletti (Trident). Grosjean stayed there, just behind leaders Dani Clos and Giedo van der Garde, until lap 15 when he passed the Dutchman - his closest title challenger - with ease into Village corner.
Two corners later Clos (Racing Engineering) locked up and went off at Brooklands, losing the small lead that he had been able to build over Addax's van der Garde in the first half of the race. One lap later Grosjean was right on his tail, and the DAMS driver took the lead with relative ease into Copse corner.
From there, Grosjean was able to run more than one second per lap quicker than his pursuers when he wanted to, and he cruised away to win by more than seven seconds.
Clos kept it together to hang on to second ahead of van der Garde, while race one podium finisher Marcus Ericsson completed a good weekend by snatching fourth from iSport team-mate Sam Bird in the closing stages.
Bird was in trouble by this point, and he then lost fifth to race one winner Jules Bianchi's ART car on the penultimate lap.