Liuzzi predicting difficult qualifying

The Italian driver was the quickest of the Toro Rosso trio, finishing in 21st position after making good progress in the afternoon.

Despite that, Liuzzi believes his team will face a difficult time in tomorrow's qualifying because of the nature of the Nurburgring circuit.

"This morning we did little more than just some installation work, but this afternoon we made some progress," said Liuzzi. "I am pretty happy with the handling and we made some good progress on the set-up front.

"But tomorrow's qualifying will be difficult for us; Nurburgring is not an easy track, but I'm still positive because overall the car was not too bad and I think we are making a little progress generally."

Teammate Scott Speed was still unsure about Toro Rosso's real form after finishing in 23rd place.

"It's difficult to say where we are today," said Speed. "The track is still quite dirty so it is hard to judge where we are in terms of our pace, although you don't have to look too closely to see it's not looking too good, although we did get over the worst of the problem  early in the afternoon session."