Kimi Raikkonen: It was a pretty normal Friday: we tried different things to make it better for tomorrow. It was a bit tricky to find the balance, the set-up is not ideal yet, but we are going in the right direction. I only did a few laps with the Soft, it felt pretty ok and obviously it has the best grip. Unfortunately at the end of the second session we had an issue with one visor which obstructed the cooling duct: the brakes overheated and I had to stop.

Sebastian Vettel: I think it was a tricky day. The track was very slippery, the temperature hot, and I think everybody was struggling with the tires. It was a bit difficult to find the rhythm. The long run was a bit better for us: I haven't seen what the others were doing, but I felt a bit more confident with more time and more laps in the car. So in total we tried a lot of things, and now we need to go and see what actually was best. Towards the end of the day it seemed to calm down a bit more, finding the rhythm, which wasn't the case for the short run, for the fast lap, where I wasn't very happy. The good news today are that the gaps were very close. Mercedes for sure, as expected, is a bit up front: but other than that, if it stays like this, it bodes well for tomorrow.

Check out our Friday gallery from Interlagos, here.