The 2009 Formula One Season was the 60th Formula One season. The first Grand Prix took place on March 29 in Australia with the final Grand Prix taking place on November 1 in Abu Dhabi. 10 teams and 20 drivers entered the Championship.
On December 5, 2008, Honda announced that it was to withdraw from F1 with immediate effect. The team was put up for sale and their entry into the 2009 championship was left in doubt until an eleventh-hour buyout by former Scuderia Ferrari boss Ross Brawn. From there, the Brawn GP team was born, and existing Honda drivers, Jenson Button and Rubens Barrichello were retained. From the first round, the Brawn GP cars were significantly faster than their opponents, and the team won six of the first seven races, before going on to win the Constructors' World Championship. Brawn driver Jenson Button also won the Drivers' World Championship.
The French Grand Prix will not be part of the schedule with the organisers stating the reason behind the decision being "economic problems". It will be the first time there has been no French Grand Prix in F1's history.
The Canadian Grand Prix was dropped as it was seen as financially non-viable to continue with just one Grand Prix in North America.
Along with changes to bodywork, vehicle weight and tyre size, the document includes details of a "Kinetic Energy Recovery System", or KERS. This is a regenerative brake device that is designed to recover some of the vehicle's kinetic energy that is normally dissipated as heat during braking. The recovered energy could be stored electrically, in a battery or supercapacitor, or mechanically, in a flywheel, for use as a source of additional accelerative power at the driver's discretion.
After being banned since 1998, slick tyres will be provided by Bridgestone in 2009.
There will also be a cap on team budgets starting in the 2009 season.
Section 3.18 of the regulations contains details of "driver adjustable bodywork". The angle of incidence of elements in a defined area forward of the front wheels can be varied by up to 6 degrees and adjusted by direct driver input. A maximum of 2 adjustments can be made on any lap.
Engines must now last three races as opposed to two in previous seasons.