Mixed feelings for Toyota drivers

While both men said they liked the new Spanish street track, Glock, coming off the back of his second place in Hungary, seemed much more at ease in the TF108 than Trulli.

"That was not a particularly good day for me," said Trulli, who ended the day 15th. "We need to adjust the car balance so we will have to look into it tonight. The track is good, though, and I like it.

"You need to find a compromise on setup because there is a mix of slow corners and higher-speed sections with long straights. The most important thing is how much the surface will change during the weekend.

"The asphalt is quite smooth and while it was predictably slippery today, the grip should improve so it will be hard to get the setup right."

Having ended the day seventh fastest, Glock, who is used to racing on street circuits from his season in the Champ Car World Series in 2005, said the track did not have much resemblance to those he drove on in America.

"It's always enjoyable to come to a new venue and I'm impressed," he said. "It was pretty hot out there but the track is good fun and the layout is interesting.

"I like street circuits because I raced on so many of them during my time racing Champ Car in America but apart from the harbour and the buildings this doesn't really look like a street circuit because it has long straights."

Glock added that he was happy with the progress he had made so far in Spain.

"We had a good day," he said. "The first practice was a bit difficult and the track was very dusty but we expected that.

"The afternoon was much better and the car got more and more into the setup window. I hope we can keep going in this direction because it has been a productive day."