Carlos Sainz (STR11-01, Car 55)First Practice SessionBest lap: 1:33.446, pos. 9th, 19 lapsSecond Practice SessionBest lap: 1:33.840, pos. 11th, 27 laps“I’d say this has been our toughest Friday so far this season… We all expected a bit more performance wise. It’s been a very tricky day because of the wind and track conditions, so we definitely have a bit of work to do overnight in order to overcome these difficulties. We aren’t where we wanted to be, but this doesn’t mean that we can’t turn things around and be on top of it tomorrow – I’m confident we can make this happen!”Daniil Kvyat (STR11-04, Car 26)First Practice SessionBest lap: 1:33.738, pos. 11th, 20 lapsSecond Practice SessionBest lap: 1:34.139, pos. 13th, 35 laps“Looking at the time sheets from the two sessions, our performance was not good enough today. The conditions were quite tricky out there because of the wind and I think that had something to do with my spin in FP2. It also made it difficult to understand exactly which areas of the car we need to work on the most, but the weather is the same for everyone. Therefore, we have to come up with something different in terms of our set-up before FP3, especially when it comes to the short runs. We have been in a similar situation before on Friday and managed to turn things around for the rest of the weekend, so I am hopeful of improving tomorrow.”Phil Charles (Chief Race Engineer)“It has been a bit of a difficult day. Our short runs have been very scrappy and neither driver is particularly happy. We have not hit a sweet spot yet with the car and tyres. Our low speed cornering performance in particular is not where we really want or expect it to be. We have made quite a few changes through FP1 and FP2 to try to tackle this. We will need to look carefully through the data tonight, especially as the often-strong Silverstone winds came up quite a lot in FP2. This made the cars very tricky to drive and so it was not easy to get clear answers on the changes we made. The wind gusts also probably contributed to Daniil’s off at the start of FP2. We changed the front wing and he settled in pretty quickly after this. On the positive side, our long runs at the end of FP2 look relatively better so we simply have to do our homework tonight, try to solve that engineering puzzle and find some short run performance.”