Sebastian Vettel maintained the impressive form he showed in practice by comfortably securing pole position in his Red Bull for Sunday’s British Grand Prix at Silverstone. The German, the only driver apart from world championship leader Jenson Button to win a Formula One race this season, finished nearly four tenths of a second quicker than Button’s Brawn GP team-mate Rubens Barrichello, with the other Red Bull of Mark Webber third on the grid. Button, who leads the standings by 26-points after dominating the season with six victories from seven races, is down in sixth place — his worse qualifying of the season — to the disappointment of home supporters.