Pirelli compound choices for Australia to be announced within next three days

Pre-season testing ends with the teams having tried all the 2015 tyres apart from the full wet.

Pirelli compound choices for Australia to be announced within next three days
Nico Rosberg, Mercedes AMG F1 W06
Ferrari and Scuderia Toro Rosso pack up at the end of testing
Sebastian Vettel, Ferrari SF15-T
Pirelli tyres
Scuderia Toro Rosso pack up at the end of testing
McLaren pack up at the end of testing
Nico Rosberg, Mercedes AMG F1 W06
Daniel Ricciardo, Red Bull Racing RB11
Sebastian Vettel, Ferrari SF15-T
Sebastian Vettel, Ferrari SF15-T
Daniel Ricciardo, Red Bull Racing RB11
Valtteri Bottas, Williams FW37

Pirelli motorsport director Paul Hembery: “Barcelona represented the final opportunity for the teams to assess the interaction between our latest tyres and the 2015 cars, which as we have all noted appear to be significantly quicker than last year’s cars. We’ve seen a difference of up to two seconds, and that gap could be even bigger on the softer compounds. Because of this, the way that the tyres work with the cars has altered, which clearly has an effect on set-up and strategy.

Although we had track temperatures that peaked at 31 degrees centigrade, conditions were still generally much cooler than we will typically see at most of the races, so this is another factor that has to be considered, particularly in the case of the hard tyre. The teams were able to test the entire range of 2015 P Zero tyres in Barcelona, which have a new rear construction this year, including the supersoft, which has a brand new compound as well.

The soft compound set the fastest time of the test: two and a half seconds faster than last year’s pole time. Although there were some brief periods of rain, we only saw limited running on the intermediate tyre. Compared to last year though, it’s clear that most teams are already well-prepared for the season ahead.”

Fastest laps and tyre choices per day

In addition to the usual 2015 tyre range, teams were also able to try out a prototype medium at this Barcelona test, which is being assessed by Pirelli for development purposes but does not have any difference in performance to the standard medium. These tyres did not carry any colour markings.

Each team is allocated a total of 110 sets of tyres for testing purposes throughout 2015.

Day 1 Massa (Williams) 103 laps 1m23.500s Soft
Day 2 Rosberg (Mercedes) 106 laps 1m22.792s Soft
Day 3 Hamilton (Mercedes) 76 laps 1m23.022s Soft
Day 4 Bottas (Williams) 89 laps 1m23.063s Supersoft

After four days of testing a total of 3502 laps were covered (compared to 3134 laps at the last Barcelona test, and 2294 laps at Jerez), with the performance gains in evidence compared to last year’s Spanish Grand Prix pole time of 1m25.232s. Rosberg’s time on Friday was also the fastest time of both Barcelona tests, beating the benchmark established during last week’s test (Grosjean, 1m24.067s, supersoft). However, as the supersoft is not ideally suited to the Circuit de Catalunya, it was not possible to assess a representative performance of the new supersoft tyre.

So far, a total of 41,048.3 kilometres have been covered by all the teams in pre-season testing.

The next time the teams will be on track will be on Friday March 13 for the first free practice session in Melbourne. The Pirelli compound choices for the first grands prix of the season are scheduled to be announced before Wednesday.

The best times today (day four) and their tyre choices

1.Bottas (Williams) 89 laps 1m23.063s Supersoft
2.Vettel (Ferrari) 129 laps 1m23.469s Supersoft
3.Nasr (Sauber) 159 laps 1m24.023s Supersoft
4.Verstappen (Toro Rosso) 85 laps 1m24.527s Supersoft
5.Ricciardo (Red Bull) 72 laps 1m24.638s Soft
6.Perez (Force India) 130 laps 1m25.113s Supersoft
7.Rosberg (Mercedes) 148 laps 1m25.186s Medium
8.Button (McLaren) 30 laps 1m25.327s Supersoft
9.Maldonado (Lotus) 36 laps 1m28.272s Medium

Pirelli Motorsport

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So who's hot and who's not after winter testing as Australian GP draws near?

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