Lewis Hamilton set the pace on the first day of testing in 2017 with 51 laps in the afternoon session in his Mercedes, with a best lap of 1m21.765s. Pole position last year was a 1m22.000s so it is clear that the new cars are going to be significantly quicker when they start to do serious times. Hamilton’s best was more than two-tenths clear of the Ferrari of Sebastian Vettel, which completed 100 laps with a best of 1m 21.878s. The third fastest time went to the Williams-Mercedes of Felipe Massa, who did a total of 86 laps with a best of 1m 22.076s, which was 0.311s off the pace of the Mercedes. Fourth fastest was Kevin Magnussen in the Haas-Ferrari. He had a spin and hit the wall but still managed 51 laps, but set a best of 1m22.894s. He was ahead of Red Bull of Daniel Ricciardo, although the Australia did 50 laps. His best was a 1m22.926s. Next up was Valtteri Bottas had his first lap in the Mercedes in the morning, completing 79 laps and a best lap of 1m23.169s. Sergio Perez was next with a 1m 23.709s, although he did only 39 laps in his Force India-Mercedes, while Carlos Sainz was seventh overall in the Toro Rosso with a best lap of 1m24.494s, after only 51 laps, with what the team called “first day glitches”. Nico Hulkenberg was next with 57 laps with a best of 1m24.784s, while Fernando Alonso finished the day with his McLaren-Honda, having done just 29 laps and a best lap of 1m24.852s. At the back was Marcus Ericsson’s Sauber-Ferrari did 72 laps with a best of 1m 26.841s.