Jake Humphrey presents a look back at one of the most eventful seasons in Formula 1 history. Britain's Jenson Button was the star of the show, holding his nerve to clinch the title in Brazil after a mid-season dip in form threatened to derail his great start to the campaign. It was also a memorable season for his team Brawn, who won the constructors' title in their debut year. There was plenty of drama off the track, from Lewis Hamilton being found guilty of misleading the stewards in Australia to the Renault 'crashgate' scandal and the breakaway threats by the teams, which for a time raised questions about the whole future of the sport.