This new team was put together March 09. Ross Brawn bought out the Honda F1 team. Interestingly, their engine plant is the Mercedes.
With drivers Rubens Barrichello and Jenson Button, they shocked everyone when they were faster in pre-season testing.
Red Bull, Ferrari and Renault filed a complaint before the first race, claim the team has illegal front wings and rear diffusers. They also cited Williams and Toyota. Luckily for those teams, the FIA stewards decided the cars passed inspection.
The new BGP001 car was initially developed by Honda Racing F1 under the lead of Ross Brawn. Brawn signed up for the team after leaving Ferrari in the hope to get Honda back to the forefront, rather than running completely at the back. Hence development started early on and 2008 development was marginal compared to the 2009 effort.
When Honda then decided to leave F1, the car was mostly done but the team could keep on working on Honda's costs until Brawn eventually took over. By that time, a deal with Mercedes was done for the engines. A gearbox was also offered but the team decided to continue with its in-house carbon fibre cased solution.