Substantial changes boost BAR

Both Jenson Button (who will start 11th) and Jacques Villeneuve (12th) had been struggling for speed from their machines around Indianapolis, but some late changes to the set-up gave them something to build on at least.

Technical director Geoffrey Willis explained: "After a difficult day yesterday we decided to make some substantial changes to car set-up overnight and after some further experimentation we finally managed to achieve a much more competitive car. The track temperatures changed considerably during the morning practice and warm-up, forcing us to make some last-minute changes, which worked well."

Villeneuve said: "We've had some trouble with the driveability of the car this weekend, mainly due to lack of grip, and this morning it was very close to being undriveable. It was a little better in warm-up then we made some changes prior to qualifying, which is always a bit of a gamble. It helped the car a lot and finally I had grip."