• Spanish Grand Prix - FP2

Perez concerned by tyre failures

ESPN Staff
May 10, 2013 « The signs are positive - Alonso | Ricciardo excited by Toro Rosso updates »
Sergio Perez: "You see two or three cars per weekend having that problem and it can really be a serious accident" © Sutton Images
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Sergio Perez says it is "a big concern" for all the drivers that Pirelli's tyres keep delaminating after another issue in practice for the Spanish Grand Prix.

Paul di Resta's left rear tyre shed its tread during FP2 as the carcass stayed intact, but he was able to bring the car to a safe stop. While di Resta himself wouldn't talk about the issue, Pirelli's Paul Hembery confirmed it was some form of failure and - with Lewis Hamilton and Felipe Massa having similar trouble in Bahrain - Perez said he was worried one could cause a major accident.

"I think it's a big concern for all of us," Perez said. "I mean you see two or three cars per weekend having that problem and it can really be a serious accident."

Looking at McLaren's upgrades, Perez agreed with team-mate Jenson Button that only a little progress had been made but stressed it is more important to improve the correlation between wind tunnel and track.

"We did a small improvement. We need to keep working with the correlation; I hope this information can help our engineers to find a better correlation and then once we get that right we can start to improve the car in bigger steps. But at the moment the limiting factor is the correlation problem we are having."

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