The car was revealed to be a Red Bull RB5 with a 2008-spec Ferrari 056 engine in Barcelona on March 9, 2009.

Jaime Alguersuari replaced Bourdais from the Hungarian Grand Prix onwards.

Buemi scored 7th place on his debut race at the 2009 Australian Grand Prix.

At the 2009 Hungarian Grand Prix, he was replaced by Jaime Alguersuari following a similar season of poor results, having scored only 2 points after the German Grand Prix before he was fired.

Alguersuari made his debut at the Hungarian Grand Prix as his predecessor Sébastien Bourdais was replaced following a string of poor results.