PARIS (AFP) – Jenson Button, who began 2009 in danger of becoming a dole queue millionaire, ended it as world champion after a year where Formula One lurched from one drama to another.

Colourful Renault chief Flavio Briatore was banned for life for his role in the infamous ‘Crashgate’ affair while Toyota and BMW called it quits as the global financial crisis continued to bite.

After 12 months, it was fitting that the year closed with one, final twist as seven-time world champion Michael Schumacher, shrugging off his 41 years, was poised to sign to drive for Mercedes in 2010, the German manufacturer having purchased Brawn GP which had taken Button to his historic title.

Button could never have dreamed how the season would unfold after Honda pulled the plug on their F1 operation, a decision that threatened to end the career of a driver who had never realised his potential.

But Button won six of the season’s opening seven races to lay the foundation for triumph after Ross Brawn intervened to save the ailing team.

Button secured the championship with a fourth-place finish in Brazil and ended the 17-race series in Abu Dhabi in November with 95 points, 11 better than Germany’s Red Bull driver Sebastian Vettel, whose four race wins marked him down as a potential 2010 champion.

‘’When I first jumped in a car 21 years ago I never expected to be world champion,’’ said 29-year-old Button, who will drive for McLaren in 2010 alongside 2008 champion Lewis Hamilton.

Team principal Brawn was in tears after his roller-coaster year.

‘’All the people who couldn’t be with us, because we had to re-size the team after the winter, my thanks go to them. I hope they’ve enjoyed it because they’ve been part of what we’ve done,’’ said the former Ferrari technical chief.

Button, Britain’s 10th world champion, will battle the weight of history when he starts out on his title defence next year.

Hamilton endured a tortuous season, having to wait until the 10th race of the season in Hungary to record his first victory.

The McLaren star was at the centre of the season’s first scandal when he was accused of lying about an over-taking incident involving Jarno Trulli in the opening race in Melbourne.

‘Liegate’ saw McLaren’s long-time sporting director Dave Ryan eventually suspended and the driver made an emotional apology after the team was found guilty of deliberately providing misleading information to race stewards.

Formula One’s reputation for providing as much intrigue off the track as on it continued to thrive in 2009. Briatore stepped down as Renault chief and was then hit with a lifetime ban after being found to have ordered former driver Nelson Piquet to deliberately crash at the 2008 Singapore Grand Prix.