page_title: Brawn BGP 001
section_title: 2009 season
hierarchical_section_title: Brawn BGP 001 / 2009 / 2009 season
caption_attribution_description: English: Jenson Button at 2009 Malaysian Grand Prix, Sepang, Malaysia.
context_page_description: The Brawn BGP 001 is a Formula One world championship winning racing car, the design of which was started by Honda Racing, and completed and then built by the team after it was renamed to Brawn GP. It was the first and only Formula One car constructed by the Brawn GP team, and was used to contest the 2009 Formula One season. The car won eight out of the seventeen Grands Prix it competed in.
  It was notable for its unusual "double" diffuser, and its legality was disputed though ultimately deemed legal by the FIA.
  On 18 June 2018, it was announced by Codemasters that this car would appear as a classic car in F1 2018.
  The Brawn BGP 001 is the first Brackley-based F1 car to utilize Mercedes-Benz engines, in which it is used by its successor as factory team.
context_section_description: The car was used by Jenson Button and Rubens Barrichello for all 17 races of the 2009 season. It won the season opening Australian Grand Prix in the hands of Button, with Barrichello finishing second giving the BGP 001 a 1-2 finish on its debut, which had not happened since 1954.
  The car achieved podium finishes in all of the first 8 races of the season with Button winning 6 times, at the Australian, Malaysian, Bahrain, Spanish, Monaco and Turkish Grands Prix. In the latter half of the season, it only achieved two more wins (Valencia and Monza), both in Barichello's hands.
  The legality of the car's diffuser was disputed by other teams, but ultimately cleared by the FIA. At the first race of the season in Australia, an official complaint was launched by Renault, Red Bull and Ferrari against the diffusers of the Williams FW31, Toyota TF109 and the BGP 001 saying that they were illegal. However the race stewards did not share that view and rejected the other teams' complaints. Subsequently, the car was cleared to race in Melbourne.
  There was an appeal launched on the 'diffuser cars' but was rejected by the FIA on Wednesday 14 April 2009 leaving the diffuser on the BGP 001 clear to race.
  A characteristic of the car was that in colder weather, such as at the British Grand Prix and German Grand Prix the BGP 001 struggled as it couldn't heat its tyres. The reason the car struggled with tyre temperature is because it managed its tyres better in hotter climates but in colder climates this meant the car wasn't hard enough on the tyres to get the heat into them.
  At the Spanish Grand Prix, the car received its first performance upgrade, but the car's development over the course of the season failed to keep pace with that of its rivals, and in later races was unable to challenge McLaren and Red Bull Racing.
  The win in Monaco marked the first time in Formula One history that the same engine had won three Grands Prix in succession.
  The car suffered its first and only mechanical retirement at the Turkish Grand Prix when Barichello lost seventh gear. The only other retirement was in the Belgian Grand Prix, when Button was involved in a collision.
  Another notable incident occurred at the Hungarian GP, a suspension spring came off Barrichello's car during the third qualifying period and struck Felipe Massa's helmet that left the Ferrari driver briefly unconscious as he crashed head-on into a tyre barrier, sustaining a serious head injury.
caption: Jenson Button at the 2009 Malaysian Grand Prix.
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