Felipe Massa: Both sessions were very wet today which meant we did little running. We worked on the set-up and how to improve our wet running, which seemed to go well. It wasn't the most useful of days but hopefully tomorrow is dry and we can start our programme for the weekend and prepare for the race.

Valtteri Bottas: It has been a tricky day for testing anything really. FP1 was productive though and we have found some improvements in the car performance in the changeable conditions. We wanted to save tyres in case it rains throughout the rest of the weekend and so chose to sit out of the final session. There is a lot of work to do tomorrow, but if it stays dry we will have a busy FP3 and can have a strong weekend.

Rob Smedley, Head of Performance Engineering: It was a reasonably quiet day. This morning's wet track gave us a chance to test the car and tyres in problem situations such as when the track is crossing over between the wet and intermediate tyre. Our tests were well-executed and we learnt a lot. The rest of the day was tougher and we now have a very busy FP3 to capture all the data ready for the race. Tomorrow looks to be dry at present, as does Sunday.

Check out our Friday gallery, here.