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More brake issues strike Haas in Russia F1 practice despite supplier change

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The Haas Formula 1 team endured another difficult day of practice ahead of the Russian Grand Prix as drivers Romain Grosjean and Kevin Magnussen suffered more brake issues despite changing supplier.

Haas confirmed on Thursday that it would be switching from Brembo to Carbon Industrie brakes, having suffered problems throughout its 14-month stint in F1.

Despite enjoying a positive test in Bahrain with Carbon Industrie parts last week, both Grosjean and Magnussen struggled with their brakes in FP1 and FP2 at the Sochi Autodrom on Friday.

Grosjean finished FP2 14th-fastest, with Magnussen breaking into the top 10, charging to ninth place in the VF-17 car.

“We’ve got very little grip. We’re really struggling with the balance,” Grosjean said. “We had some issues, as well, with the brakes over the long runs. We need to look at what we can do better with them.

“Generally, it’s just been a very difficult Friday. The car didn’t perform well – very low grip on low fuel and high fuel.”

Team principal Guenther Steiner added: “We had a lot to do and I think we did a lot. We still haven’t got all the results yet, as we need to go through data.

“I would say the issues with the brakes were mainly because they’re new to us. We need to find out how they work. Going through the data, we will decide tomorrow what we’re doing and how we continue.

“All in all, we had pretty fruitful sessions. We did a lot of laps and we learned a lot. Now we need to get the best out of what we learned for tomorrow to go into qualifying.”

Qualifying for the Russian Grand Prix is live on CNBC and the NBC Sports app from 8am ET on Saturday.

Hamilton hails ‘greatest day’ after USGP victory, Mercedes title win

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Lewis Hamilton made no secret of his jubilation after taking a giant step towards his fourth Formula 1 championship win with victory in Sunday’s United States Grand Prix that also saw Mercedes clinch the constructors’ title.

Hamilton recovered from an early pass by F1 title rival Sebastian Vettel to take his sixth victory on American soil, five of which have come at the Circuit of The Americas in Austin, to extend his lead to 66 points.

With just 75 left on offer this season, Hamilton needs just one top-five finish in the final three races to clinch his fourth world title, with the enormity of the victory not being lost on the Mercedes driver.

“Today has been amazing. It’s been the greatest day,” Hamilton told NBCSN after the race.

“I woke up a bit tired, felt the rain, then was like, ‘What the hell?’ But I didn’t mind. I won here in the rain in the past. Then it dried up, clear blue skies, amazing opening at the beginning of the GP.

“I lost first place into Turn 1. It was OK. That first section, we got through there, and it felt very reminiscent of 2012: ‘Game on. You have to save the tires’, and he wasn’t doing that. I kind of kept my cool.”

“I saw I got a good exit of Turn 1, this was the lap and it was. His tires were dropping off anyway.”

Hamilton’s victory saw Mercedes wrap up its fourth consecutive F1 constructors’ title with three races to spare, with the Briton having played a key part in each of its successes.

“I’m so proud of this team. Big congratulations to the guys, people don’t know the amount of work they do,” Hamilton said.

“It’s over 1,500 people in two factories, so much brainpower and a lot of people to manage to extract the best from each of those.

“To come into a new era of car and perform as we have. There’s been a newfound love within the team. Ferrari, we want to beat them, thrash them.

“So they put more hours of working in to do that. That’s for all their hard work.”