"Unfortunately I cannot say anything bad about the team, it says so in my contract," said Petrov. "But many things have already been written about [it] in the media. ... "But I couldn't say in interviews that we lost it with the pitstops, and I cannot talk about that now either. But I can't keep silent any more - it is over. I can't keep everything inside any more." ... "At the beginning of the year, for the first five or six races, we looked really strong. We could not fight with Ferrari, Red Bull or McLaren, but we were quite close to Ferrari and much faster than Mercedes. "It was very easy for us to pass from Q2 to Q3 using one set of tyres. We didn't even used all the potential or push 100 per cent to get into Q3 - in the first six races it was rather easy. "But when the windtunnel developments came, the new parts, because of the front exhausts, they didn't work. We worked on the front wing, the rear wing, the diffusers, the floor - but whatever we changed it was useless. "For about 10 races we didn't have anything, so in fact we have had the same car with which we started the season."