the circuit, the tyres or the car. Most probably it is a combination of all those factors and we have to find the best way to improve. This goes especially for when we run low fuel, although I didn't do that many laps with a lighter car. I spent a lot of time running on a high fuel load and I think we are doing fine with the heavier car. We have to work now, but also to consider that anyway the grip level of the track will improve." Esteban Gutierrez FP1: 20th "It was a great experience to step in for Sergio this morning. For me it was the first time I have been at the wheel of the C31, as I have only done straight line testing so far. Also I didn't know the track before, which made it an even more interesting session. I have worked very closely with the team all season, listening to the radio and attending the engineers' meetings. Today I really enjoyed seeing from the inside of the cockpit what I had only seen from the outside. It was also very interesting to be part of an official Formula One event for the first time. It is obviously different to testing and it is challenging to stay focused. I think the circuit here is amazing, especially with the chain of fast corners. However, my target was to progress during that session and make sure I brought the car home in one piece. Now