Turkey Friday quotes: Toro Rosso

"So from the mid-point of the session our work was not so productive. We will have to work on this tonight as up until this problem, everything had been going well."

Sebastian Vettel - 20th: "This morning we struggled a bit to find the right way to progress with the car, but we were still optimistic about improving in the afternoon.

"Unfortunately, a sensor broke deep inside the gearbox which meant we had to pull the back end off the car and replace the sensor and that cost us some time, but fortunately the red flag period meant I did not lose so much time compared to the others.

"Once back on track, we concentrated on acquiring as much data as possible in the short time remaining. In general, I think there is still room for improvement. This track is where I made my GP weekend debut last year, when I was very impressed with this circuit. That feeling remains this time, and Turn 8 is as impressive as ever. It is a very technical track and I enjoy that."