Williams-Cosworth

Despite finishing a disappointing seventh in the constructors' championship, last year was a massive step forward for Williams.

The recruitment of veteran Rubens Barrichello and highly-rated GP2 champion Nico Hulkenberg gives it a far stronger driver line-up, and the team hasn't ruled out fighting for wins.

The Williams FW32 has showed good speed in testing, and once the racing starts much will depend on the relative strength of the Cosworth powerplant.