Tuesday, 28 February 2017 : Lewis Hamilton was fastest as Mercedes completed 152 laps with both their drivers at Circuit de Catalunya.
Hamilton was 0.113 seconds faster than Sebastian Vettel’s Ferrari, which also ran reliably and used the slower medium tyre with the Mercedes on the soft.
By contrast, the mileage of Red Bull and McLaren was limited by recurring reliability problems in Barcelona.
Hamilton’s team-mate Valtteri Bottas, a replacement for the now-retired world champion Nico Rosberg, was sixth fastest.
“It has been a good day, a positive day for the team,” Hamilton said. “Lots of laps and information gained so we can try to improve the car.”
Asked whether the new rules – designed to make the cars up to five seconds a lap faster and demand more of the drivers – had made a difference, he said: “The G forces are definitely higher. The load on the drivers is a considerable amount more than before. It is a lot more physical.
“I was always trying to pick up the speed through the corners and you have to drive a little bit different. It is a beast. It is so much better than last year.”
And he added that the new tyres, which have been designed to allow drivers to push flat-out for much longer, seemed to be working as planned.
Source : Internet