"We think it may be wet tomorrow and during the race, so we have to be ready for all circumstances," said Frentzen. "More or less everything went according to plan today and we achieved what we wanted to achieve. Of course, because Silverstone is our home track, we already have quite a bit of information although surprisingly, considering the British weather, if it rains tomorrow it will be the first day for me at Silverstone in wet conditions! I have mainly tested in the dry."

The two sixty minute sessions were run in overcast conditions with rain falling in the final few minutes. Jordan took the opportunity to fit intermediate tyres on both cars for the last couple of laps.

"I did many laps because I wanted to check the feeling and balance of the car in race conditions," said Trulli, who celebrates his 27th birthday today. "It's not too bad, so we will look at the information and concentrate on what we are going to do tomorrow. So far, so good."