Barcelona Test Day 1: Rosberg way ahead

Fresh from victory at the Spanish Grand Prix, on Sunday, Nico Rosberg was back in the cockpit of his Mercedes for the first day of testing in Barcelona and simply out gunned everyone by a large margin on the day.

Rosberg completed 146 laps and in the process set a best time of 1:24.378 in the morning stanza, which by the end of the day was two seconds faster than the next best.

Mercedes along with Ferrari, Red Bull and Toro Rosso were on duty for Pirelli and testing various experimental options for the tyre supplier.

Second fastest at the end of the day, despite a delayed start to his programme, was Marcus Ericsson in the Sauber, with 98 laps to his credit.

Next up was Ferrari development driver Raffaele Marciello, who did FP1 duty during the race weekend, with a best time of 1:26.648 and 125 laps on his chart.

Daniel Kvyat was fourth in the Red Bull, with Pierre Gasly seventh fastest on his F1 debut for Toro Rosso - the Renault powered duo completing 101 laps and 131 laps respectively.

Another debutant was Nick Yelloly who was drafted in to replace Pascal Wehrlein at Force India, the latter feeling unwell. Yelloly completed 109 laps, finishing the day in sixth and only a tad slower than Pastor Maldonado in the Lotus - both cars powered by Mercedes.

Felipe Massa did 54 laps in the Williams, setting the eighth best time before the team packed up early content that they had fulfilled their programme for the day.

McLaren were slowest of the nine teams in action with Oliver Turvey's best time of 1:28.542, set late in the day, was over four seconds down on Rosberg's top lap time.

Manor are the only team opting not to partake in the test at Circuit de Catalunya this week.

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