What is 2009 Formula One World Championship?
{{Infobox F1 season | year = 2009 | image = [[Image:Jenson_Button_at_Bluewater_2009.jpg|225px|Jenson Button]] | champion = [[Jenson Button]] | constructor = [[Brawn GP]] | second = [[Sebastian Vettel]] | third = [[Rubens Barrichello]] | previous = 2008 | next = 2010 }} The '''2009 Formula One season''' was the 60th [[Fédération Internationale de l'Automobile|FIA]] [[Formula One]] World [[Championship]] season. There were ten teams signed up to compete in the championship.<ref>{{cite press release|title=Formula One Teams Association Press Release|publisher=FOTA|url=http://www.mclaren.com/latestnews/mclaren-news.php?article=220|access-date=2009-04-27|archive-date=2009-01-18|archive-url=https://web.archive.org/web/20090118211727/http://mclaren.com/latestnews/mclaren-news.php?article=220|url-status=dead}}</ref> [[Jenson Button]] became the Drivers' World Champion and [[Brawn GP]] won the Constructors' title. The season was scheduled to take place over 17 rounds, and started with the [[Australian Grand Prix]] on 29 March 2009. It would end on 1 November 2009 with the [[Abu Dhabi Grand Prix]], which was included on the race calendar for the first time, to be held at the new [[Yas Marina Circuit]]. The [[French Grand Prix|French]] and [[Canadian Grand Prix|Canadian]] Grands Prix, which were both included in the [[2008 Formula One season|2008 championship]], have been dropped. Several rule changes will be implemented by the FIA, in a bid to cut costs due to the [[Financial crisis of 2007-2009|global financial crisis]] and to improve the on-track spectacle. New rules governing [[tyre]]s, [[aerodynamics]] and [[Kinetic Energy Recovery Systems]] (KERS), among others, are some of the biggest changes in the Formula One regulations for several decades.<ref>{{cite web |url=http://www.planet-f1.com/story/0,18954,3213_4907252,00.html |title=Newey: Biggest rule changes since 1983 |publisher=planet-F1.com |date=2009-02-09 |access-date=2009-07-19 |archive-date=2009-02-12 |archive-url=https://w