US star faces new challenge
First GP: Australia 2008
Best result: 7th
2007 position: N/A
Previous teams: N/A
Four American Champ Car titles mean Sebastien Bourdais is used to the view from the top of the podium but it may be some time before he enjoys it in F1.
Previous Champ Car winners who have moved to F1, such as Alex Zanardi, Juan Pablo Montoya and Jacques Villeneuve, have enjoyed very mixed fortunes.
US success is no guarantee of being able to make the grade in F1, and it is not yet clear whether Bourdais will.
He has had an up-and-down start to his F1 career but has shown some promise.