Jarno Trulli - 7th:
"We mainly concentrated on set-up work and tyre evaluation as usual on a Friday. The track was pretty dusty, especially in the morning, so we felt a little lack of grip but that was expected here and it should improve tomorrow. The new aero bits are working well and they look like a good step which bodes well for the rest of the weekend. My lap times were competitive and the long runs went well so we will see what we can do for tomorrow. I am pleased with how things went today so we should be competitive."

Timo Glock 15th:
"It was a normal Friday practice for me with a programme of long runs and also various set-up comparisons. It was a bit tricky because I didn't feel the balance of the car was exactly where I wanted it to be, especially on the soft tyres, but we will work to improve that in time for qualifying. The lap times were really close in the afternoon session and I know I had the potential to be quicker. We are stronger than we were in Monaco, which is what we expected as that track is a one-off, so we want to demonstrate that in qualifying."

Dieter Gass - Chief Engineer Race and Test:
"It was a very productive day for us. We had some aero updates on the car which we used successfully and we clearly looked better than we did in Monaco, as we anticipated here. As usual in Turkey on Friday you have a very big circuit evolution and we saw that in the morning. In the afternoon, between third and 16th places all cars were within half a second and that means that only a difference of 10kg of fuel would completely mix up the pecking order. So it is difficult to draw conclusions yet but we are definitely on a different level of performance compared to Monaco so we can be optimistic for the weekend."