Rob Smedley, Head of Vehicle Performance: We carried out the test programme set down by Pirelli today so they set us the tasks and we carry them out as required. We had some control issues at the end of the day, but that's why we go testing, to iron these out. We are content with the day and hope we delivered some good data back to Pirelli.

Felipe Nasr, Williams FW36 Test and Reserve Driver

Photo by: XPB Images

Felipe Nasr: Today was our allocated day for work on next season's Pirelli tyres. We worked on many new compounds and it was another productive day for me to learn the processes and feeling of driving a Formula One car, and I did quite a few miles. Doing a tyre test means you can test the tyres to the extreme which was a good experience. I also got to experience the differences between different compounds and how they affect the car and the balance. Running a Formula One tyre when it hasn't been in a blanket was one of the most interesting things as it's very difficult to get them up to temperature, even in the Bahrain heat, it will be even more of a challenge at tracks such as Silverstone or Spa.

Williams Martini Racing

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