Pirelli Motorsport conducted a wet weather test at the Barcelona Circuit Du Catalunya on Thursday, the final day of the opening winter Formula One test of the 2017 season.

Over the course of the four days, Pirelli tyres covered 3,185 laps of Montmelo circuit. Mercedes AMG PETRONAS F1 Team’s Valtteri Bottas set the fastest time overall over the course of the four days with a time of 01:19.705s which was set on the Ultra Soft tyre on day 3 of action.

Speaking following the four day test at the Spanish circuit, Pirelli Racing Manager Mario Isola commented by saying:

We’re satisfied with the results of these four days. From what we can see up to now, the new product is in line with our expectations. For the 2017 season, the sport asked us to develop tyres with less degradation, which allow drivers to push to the maximum. That’s what we’ve seen during these four days of testing so far, and what we’ll continue to see in the second four-day session next week.

During the first session, the lap times have already been lowered considerably. The target was for lap times that were five seconds faster compared to Barcelona in 2015. Yesterday, Valtteri Bottas set a best time of 1m19.705s on ultrasoft tyres. Considering that the pole time in 2015 at Barcelona was 1m24.681s, I would say that this objective has been met.

Today, we also saw the new wet weather tyres on track for the first time on the 2017 cars. The combination of new dimensions and a new tread pattern means that the water expulsion capacity of the Cinturato Blue full wet tyre has gone up from 65 to 85 litres of water per second, per tyre, at 300kph. The Cinturato Green intermediate also has an increase: from 25 to 30 litres of water per second dispersed.

We’ve now collected plenty more data for our engineers to analyse ahead of the next test session that takes place from March 7-10, again in Barcelona

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