Free Practice: Webber sets pace before electrical problem

Mark Webber set Friday's fastest practice time, but the Australian also sat out the end of the afternoon session while Red Bull repaired an electrical problem.

But in the sister RB6, 2009 winner Sebastian Vettel had been the quickest runner in the morning, demonstrating that the Austrian-owned team is still the favourite for British grand prix victory.

McLaren debuted its Red Bull-like blown exhaust layout on Friday, but Lewis Hamilton - the fastest of the two MP5-25s - was 1.5 seconds off the pace.