Barcelona Day 1: Hamilton tops with Vettel in touch

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Mercedes dominated the first day of Formula 1  preseason testing on Monday, sending a message that the overhaul of regulations may not derail the three-time defending champion.

While Lewis Hamliton aimed for speed, new teammate Valtteri Bottas went for distance as they shared time behind the wheel of the revamped Silver Arrow.

Hamilton took over driving in the afternoon and clocked the day’s fastest lap using Pirelli soft tyres, bettering Sebastian Vettel in his Ferrari by 0.113 of a second.

In four hours of driving before lunch, Bottas outworked the rest of the field with 79 laps at the Circuit de Barcelona-Catalunya. That total surpassed the 66 laps of the Spanish Grand Prix at the same venue.

Only Vettel and Felipe Massa ended up with more laps, but that was in double the time following the entire eight-hour session.

“It’s a great feeling,” Bottas said after his maiden run in the Mercedes. “(The engineers) did an amazing job in the winter. I only started a month ago, but what I have seen has been very impressive. For us, the main thing is to get the mileage now.”

Bottas inherited the driver’s seat at Mercedes from world champion Nico Rosberg, who retired in December five days after clinching the title.

The Finn said he planned to have a more constructive relationship with Hamilton than his predecessor, who openly sparred with Hamilton as they dueled for the past three driver’s titles in the absence of a real threat from other teams.

“I am sure that we are going to share every little bit to help the team go forward and I see no reason for any issues in the future,” Bottas said. “I don’t think there will be a No. 1 or a No. 2 on the team. We both will be driving for our own results, but for the team we need to work well as a good pair of teammates.”

Mercedes’ rivals are hoping the regulation changes will help them make up ground on a team that has won 51 of the last 59 races.

Other than Vettel’s positive showing, on medium compound Pirelli tyres, there was little sign that the gap had closed.

While Hamilton and Bottas took turns churning out the laps under sunny and dry conditions, McLaren and Red Bull endured inauspicious starts.

Fernando Alonso’s McLaren was stuck in the garage for hours following a sole trip around the track as its technicians repaired an oil-related problem with its Honda motor.

Red Bull driver Daniel Ricciardo didn’t do much better, needing to be ferried back after just four laps when his new RB13 ground to a halt. Once the team repaired a problem with a sensor, it then ran into trouble with the car’s battery that limited its action.

Massa posted the third-fastest lap in his Williams. He announced he was retiring, but returned to Williams when Bottas left last month.

F1’s rule changes to produce more downforce and grip by mandating wider vehicles and tires appears to have led to the desired result of boosting speeds.

To compare with times on the same track from last year, Hamilton’s fastest effort of 1 minute, 21.765 seconds on Monday knocked a second off the fastest lap through a full eight days of testing in 2016. It was also faster than Hamilton’s pole-winning lap of 1:22.000 at the Spanish GP.

Bottas said driving the new cars is much more demanding physically, as expected.

“We are experiencing more G-force on the corners and that drains more energy out of you,” he said. “So it is more physical, but I have prepared well for the season.”

The opening test will run through Thursday.

Barcelona Day 1, Monday – Best Lap Times

Driver Team Time Laps Tyres
1 Lewis Hamilton Mercedes  1:21.765 73 S
2 Sebastian Vettel Ferrari  1:21.878 128 M
3 Felipe Massa Williams-Mercedes  1:22.076 103 S
4 Kevin Magnussen Haas-Ferrari  1:22.894 51 S
5 Daniel Ricciardo Red Bull-TAG Heuer  1:22.926 50 S
6 Valtteri Bottas Mercedes  1:23.169 79 S
7 Sergio Pérez Force India-Mercedes  1:23.709 39 S
8 Carlos Sainz Toro Rosso-Renault  1:24.494 51  M
9 Nico Hülkenberg Renault  1:24.784 57  M
10 Fernando Alonso McLaren-Honda  1:24.852 29  S
11 Marcus Ericsson Sauber-Ferrari  1:26.841 72  M