Turkey Saturday quotes: Virgin

Lucas di Grassi - 23rd: "Despite the improvements that we made to the car set-up overnight, today has been very frustrating for me as we had an issue with the engine. Timo was able to demonstrate the true potential of the package and so it was disappointing for me to end up so far away because of the problem. I hope we can look forward to something more representative tomorrow and have a good race because I think we can have a good day."

Nick Wirth, Technical Director: "A very encouraging day. After a detailed analysis of yesterday's running, a strong team engineering effort with a lot of clear input from both drivers yielded the improvement that I was looking for. Timo was much happier with the car today and it's clear that the development parts that we brought here are working again. It's a bit unfortunate that Timo didn't manage to complete his last qualifying run as we believed it was possible to get in front of at least one of the Lotus cars. We've closed in on them since Barcelona and we normally have a strong race pace in comparison, so the objective is to fight for every opportunity and get both cars to the finish.

"We're all very sorry that Lucas' day has been blighted by an issue with the engine that we fitted to his car last night, which had already completed two Grands Prix. The power loss from this engine is the sole reason that Lucas is so far behind Timo and having discussed the issue with Cosworth we have no other option but to change the engine for the race tomorrow."