Europe preview quotes: Sauber

Kamui Kobayashi: "From what I have seen so far the Valencia street circuit doesn't seem to be the most exciting track, but I only know it from two GP2 races and racing there in Formula One will be different. I like driving over the bridge, which makes the track quite distinctive. It might not be as hot as last year when the race was two months later, but I still expect rather high temperatures, which is fine for me. It is another race in Spain, and in Barcelona we had one of our better weekends in terms of performance, so I hope we can achieve a positive result."

Technical Director James Key: "For Valencia we return to a higher downforce level, similar to what we had in Istanbul and a step up from what we had in Canada. The fact that Valencia is a street circuit with small run-off areas can make for an eventful race, so you have to stay away from the walls. The circuit is very stop-and-start, which means acceleration and braking performances are important with relatively slow speed corners in between each straight.

"We have a new aero upgrade for the European Grand Prix, which should make the car more efficient and a little bit easier to set up. This is the first of our mid season updates. We have to see how we go in Valencia. We are looking to bounce back after a difficult weekend in Canada."