Kimi: "Obviously the end result of this race is far from ideal. It's a pity because the performance of the car today was good. When we changed for Soft tyres, for whatever reason I seemed to struggle. The balance was ok but I never really had the grip I was expecting. Once we went back to Supersofts the car was good again. When I left the pits after the third pit stop I slowed down a bit and asked if everything was ok because I saw some sparks coming out. At the end of the pitlane the team told me to stop. Now we have to understand what happened, the rear wheel nut had not fitted properly."