Gearbox change penalty for Webber

Mark Webber has had to drop five places on the Montreal grid after a gearbox change.

The Aussie drops to seventh, which means that Sebastian Vettel is alongside Lewis Hamilton on the front row, with Fernando Alonso moving up to third on the more favourable side of the track.

Jenson Button starts fourth, Tonio Liuzzi fifth, and Felipe Massa sixth.