So far in 2011, Williams F1 have failed to live up to expectations. Ahead of the season, the team were hoping to have moved forward considerably, but it appears they have remained still while others pass them.

With that in mind, they're concentrating their efforts on bringing new updates to the car - with the focus on the exhaust system this weekend. Rubens Barrichello ran a new exhaust in free practice but ended the day 16th.

Technical Director, Sam Michael, is going to study the data before making a final decision about Sunday: "We had some issues with the new exhaust system... we'll now review the data to decide whether or not to race it. Barrichello added that the exhausts seemed to lose performance towards the end of the session, although there is nothing conclusive as yet.