Britain Friday quotes: Virgin

Lucas di Grassi - 20th: "We've had a very productive day today. We've done a lot of work with the new upgrades and the car was behaving as expected throughout the sessions. I'm very happy that we are getting closer to Lotus and we are ready to go for tomorrow. I am confident we can make another step forward for qualifying."

Nick Wirth, Technical Director: "A fascinating and encouraging day. We did a series of aero tests today that have proved conclusively that we've made the expected step forwards in downforce which is consistent with our digital aero process. In fact the step is so significant that it caused a number of set-up issues that we're trying to address. Lucas had a steady and productive day, with the set-up direction evolving as he'd found on the simulators this week, which is great news. Timo had a tricky Friday, starting with a fuel leak caused by a pinched O-ring delaying his start, and a lengthy set-up change taking up some valuable track time later on. Unfortunately he had an off prior to trying the option tyres which broke his new front wing and our spare wing hadn't quite made it to the track in time for him to use. Nevertheless we have the spare now and we'll look to improve the set-up again overnight."