Abu Dhabi Friday quotes: Sauber

Kamui Kobayashi - 10th: "It is quite difficult to compare the two practice sessions, as the difference in track temperature is over ten degrees Celsius. This also means that in tomorrow's third free practice session we can't learn much for qualifying because again we will have this difference in track temperature. However, in general the track was quite slippery. We are pretty much okay at high speed, but we need to improve in slow corners and in terms of braking stability."

Sergio Perez - 11th: "I'm confident for the weekend. We had a good day and completed our programme. Nevertheless it is difficult to know where we stand as we don't know what the others were doing today. We learnt a lot and we will now continue to work on our qualifying performance for tomorrow. Then we will also try to improve the car's balance for the long runs."

Giampaolo Dall'Ara, Head of Track Engineering: "It was more or less a normal Friday. However, it was not ideal to lose 50 minutes due to a gearbox problem on Kamui's car in the first session. Apart from that everything went okay. We put some extra focus on the single lap performance. Now we have to analyse all the data, discuss it with the drivers and make the right decisions for the remainder of the weekend. It will definitely be a tight battle for positions."