“Naturally I am disappointed, as the race was tough but I was quite happy with the car and managing the tyre wear quite well. Despite the challenging track conditions I was still able to push and I think we were sitting quite well versus the pace of the Caterhams. Unfortunately on lap 24 I had a problem with the Air Valve System and I had no option but to retire the car, which is frustrating for me and the team as they have worked very hard to keep us moving forward here all weekend. As we head to Europe now I have to be pleased with the opening few races in general, but we need to be focused now on improvements for Spain.”