China Friday quotes: Virgin

Jerome D'Ambrosio - 22nd: "I'm happy with my performance today, so it's a shame that some issues let us down and prevented us from improving further. In particular I wasn't able to get the best out of my Option tyre run. Hopefully with a better run of luck tomorrow we can get back to where we expected to be."

John Booth, Team Principal: "Our race weekend here in China did not get off to the most auspicious of starts today and to say our day has been less than straightforward would be something of an understatement. This morning, having waited for the track condition to improve, when we did finally get our timed runs underway Timo experienced a mechanical problem. This afternoon, after just 12 laps, Timo suffered an engine problem which confined him to the garage for the second half of the session, so he was unable to complete a soft tyre run and improve his lap time, which is reflected in his position today. Jérôme had a better afternoon session and was making good progress but immediately prior to his option tyre run we noted heavy floor damage. This wasn't sufficient to prevent him from running, but it was by no means a representative run. Hopefully we have got all our bad luck out of the way today and tomorrow will provide a better reflection of where we stand here."

Mark Gallagher, General Manager, Cosworth F1 Business Unit: "The engine in Timo Glock's car, Cosworth CA312, suffered a broken valve in FP2 and is therefore withdrawn from service. This valve suffered very minor damage as a result of the engine ingesting a metal fastener from the engine assembly during the Australian Grand Prix weekend, but the unit was subsequently inspected and returned to the team prior to Malaysia as a practice-only engine. The failure is not completely unexpected, therefore, and indeed the engine has completed 352kms since its inspection. FIA-approved modifications have been implemented to all team engines prior to Malaysia, to avoid a repeat of this issue."