Report: Pirelli now eyeing 19-inch F1 tires, not 18-inch

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During last month’s Formula One test session at Silverstone, Lotus reserve Charles Pic turned laps on Pirelli tires fitted with an 18-inch rim.

But while Pirelli motorsports director Paul Hembery (pictured, with one of the 18-inch tires) said that he got good feedback, he did say at the time that a 19-inch tire could be “probably more interesting going forward.”

Sure enough, Hembery’s now confirmed that his company’s focusing on 19-inch tires for future seasons as F1 ponders ways to become more road-relevant.

“We are doing a lot of work – probably focusing on 19-inch now, if I am really honest with you,” Hembery said according to Crash.net. “We are carrying on our work internally on those developments and so from our point of view, it goes ahead.”

The F1 teams would have to give their consent for such a tire change.

After Pic tested with the 18-inch tires – which could be introduced as early as 2016 if necessary – Lotus technical director Nick Chester explained how a bigger tire would have major impact on car design and would need an extended testing calendar leading up to a debut.

As for what the width of the 19-inch tires would be, Hembery said that would ultimately come down to several factors.

“I think that depends on what package of aero changes they are going to make and what they think they might do with the suspension,” he told Crash. “We have heard talk of some form of active suspension. I am not sure if that is going to happen or not.

“But there is a lot of aspects they are talking about which could change what we do with that.”

Hartley says debut F1 point would be ‘a dream’ from last on grid

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Brendon Hartley says scoring a point on his Formula 1 debut would be “a dream” after being resigned to last place on the grid for the United States Grand Prix following an engine penalty.

Porsche factory driver Hartley was drafted in by Toro Rosso to replace Pierre Gasly for the USGP when the Frenchman was ruled out due to clashing commitments in Super Formula.

Despite having not driven an F1 car since 2012, Hartley came within one-tenth of a second of making it through to Q2 on Saturday at the Circuit of The Americas, ultimately qualifying 18th.

“Obviously I’d love to be quicker but we knew we were starting at the back, so we put a lot of focus on long runs, getting the peak performance out of this Pirelli tire I didn’t get today,” Hartley told NBCSN after the race.

“In FP3 I had a good feeling. There’s a lot of quirky things to manage with these tires. Honestly I should be happy with how the weekend’s gone so far.”

The New Zealander will start last due to a 25-place grid penalty for changes made to his power unit ahead of practice on Friday, and is daring to dream of making the top 10 in his first race out of a sports car for more than five years.

“I don’t do the 24 hours completely alone!” Hartley joked. “It’s quick. It’s physical to drive. I’ll be happy to be done after an hour and a half.

“A point would be a dream starting from the back. If I can move forward and put a race together, I’ll be happy.”

The United States Grand Prix is live on NBCSN and the NBC Sports app from 2pm ET on Sunday.