United States GP: Force India Friday quotes

Paul Di Resta - 11th/18th: "I said yesterday that getting the tyres working was going to be difficult - and so it proved today. The track surface is very smooth and the temperatures were not especially high, which probably didn't help us. We've identified some issues and haven't found the best direction with the set-up yet, so we need to work hard to make the car easier to drive. In terms of the layout of the track it's very open and there are some nice corners, especially the first sector which has a great flow. A lot of the corners are off-camber, which also adds another challenge."

Jakob Andreasen, Chief Engineer: "It hasn't been the easiest day of practice for us and we need to work hard tonight to make the car perform better on this challenging circuit. We struggled in the first session with low grip - just as everyone did - but we didn't find much improvement in the afternoon session. The layout here is a bit like Suzuka with a mix of high and low-speed corners, but it's fair to say we haven't found the right compromise with the set-up to cope with these two extremes. On the positive side our long run performance looked quite encouraging and when we go over the data tonight I'm sure we will find the clues to help us make the right decisions with the set-up going into tomorrow."