German Sebastian Vettel gave Red Bull its first Formula One win with a pole to checkered flag victory ahead of teammate Mark Webber in the rain-soaked Chinese Grand Prix on Sunday. The 21-year-old claimed the second victory of his career, with Australian Webber taking his best result to date, in a Red Bull one-two on a track that resembled a skidpan for much of the race. Briton Jenson Button, who won the first two races of the season, finished third to extend his championship lead to six points over Brawn GP team mate Rubens Barrichello, who was fourth. “It's a great result for me,” said Button, who now has 21 points. McLaren's Heikki Kovalainen was fifth to get his season going at last after failing to finish a lap in the previous two races, while world champion teammate Lewis Hamilton finished sixth after a late spin robbed him of a better result. German Timo Glock was seventh for Toyota, who slipped to third in the constructors' standings behind Red Bull, and Toro Rosso's Swiss rookie Sebastien Buemi won the final point in eighth. There was heartache for Force India, still without a point since its debut last year, who had Adrian Sutil in sixth place until the German crashed out six laps from the finish. Brawn has 36 points to Red Bull's 19.5 and Toyota's 18.5. Ferrari's misery continued with the champion failing to score for the third race in a row. Brazilian Felipe Massa's car ground to a halt during the second safety car period while 2007 world champion Kimi Raikkonen finished 10th. Ferrari, which remained bottom of the constructors' standings, is now suffering its worst start to a season since 1981 when its cars retired from the first three races.