Spain preview quotes: Williams

"It's been a long trip so I'll be resting a bit between the usual training I do before races. I also have lots of personal things to do as I haven't been home for six weeks and that will definitely include catching up with friends and family.

"As we spend quite a lot of time testing at Barcelona, it's a circuit we all know well. Last year was going really well for me and I was looking good for 6th place, but then a technical problem put me out of the race. The only concern with Barcelona is that track conditions are constantly changing, so knowing what direction to go with the set-up can prove hard.

"With the new rule changes, this year really is all about who makes the greatest progress back at the factories with development. As with all the other teams, we'll have an upgraded car in Spain and I hope it will make the difference we need."

Kazuki Nakajima: "It's been a tough start to the season for me. I've had three DNFs out of four races and I don't want anymore. I'm going to put them behind me now though and concentrate on the work ahead. There's still 12 more races to go and I'm determined to get some good results for myself and for the team.

"It's nice to be home after so long away. I'm spending the ten days in Oxford and will catch up with friends over some football and, hopefully, a softball game at the weekend. There will also be a few visits to the factory to talk to my engineers about Barcelona and to use the simulator to prepare myself as much as I can for the track. No doubt my trainer will also be putting me through my paces as well!

"I really like Barcelona and have lots of racing experience there. Last year, I had a good qualifying session and scored two points for the team coming 7th in my debut race. As I haven't had a great first few Grands Prix, I hope that this will mark the start of a new phase for me and I can do something good in Barcelona.

"I didn't have the new parts on my car in Bahrain so I'm looking forward to trying those out in Spain and to see how the other new bits go. I'm sure that the upgraded package will be a step forward, we already know how much time it will give us, but it's all relative compared to what the other teams have done."