Weather: sunny/overcast and dry, 16-22°C air, 18-39°C track
Two productive practice sessions ahead of the British Grand Prix in Silverstone. In FP1 Marcus Ericsson tested a new rear wing for aero measurements and data collection. In the afternoon the main focus was on race preparation on the medium and soft tyres.
Marcus Ericsson (car number 9):
Sauber C35-Ferrari (Chassis 01/Ferrari)
1st practice: 20th / 1:36.003 min (19 laps) / 2nd practice: 19th / 1:34.722 min (36 laps)
It is good news that we tested our new rear wing here in Silverstone in FP1. We were able to collect a lot of data, which we now have to analise and understand properly. On the other hand, I was only able to do one stint in the morning. In FP2 we then had a busy programme with short and long-runs on medium as well as on soft tyres.
Felipe Nasr (car number 12):
Sauber C35-Ferrari (Chassis 03/Ferrari)
1st practice: 17th / 1:34.805 min (21 laps) / 2nd practice: 14th / 1:34.154 min (25 laps)
It was a good day. We were able to run through our planned programme. It is positive to see that the engine upgrade is a decent step. Especially at this track, a good straight-line speed helps to gain some lap time. In general it was all about setting up the car on soft and medium tyres today. It was a bit tricky to get the soft tyres to work with the colder conditions in the morning, but in the afternoon we got a much better feeling for the car as well as with the tyres.