World championship leader Jenson Button is confident he and his Brawn GP team will bounce back to form with a strong performance in this weekend's Hungarian Grand Prix.

After two difficult races in Britain and Germany, where cool conditions played into the hands of their main rivals, the 29-year-old Briton believes the hotter weather in Hungary, plus upgrades for his car, will see him back on the podium at the circuit where he picked up his maiden win in 2006.

The Red Bull pair of Australian Mark Webber and German Sebastian Vettel delivered two successive one-two triumphs to underline their bid for world title glory. But Button, who has been training hard at his home in Monaco, is still 21 points ahead.

He said: "I know that the guys at the factory have been working really hard on our latest upgrade package and I just can't wait to get back in the car. Red Bull have stepped up their game and it is up to us to respond now, and I am certain we will."