Formula One team bosses and drivers struggled to hide their alarm after Sunday's British Grand Prix was thrown into chaos by repeated tyre explosions.
The left rear tyres of Lewis Hamilton, Jean-Eric Vergne, Felipe Massa and Sergio Perez – who also suffered a blowout in Saturday's final practice session – all failed during the race at Silverstone – leading to major concerns over safety.
The cause is still being investigated, with the relatively high track temperatures and an uneven surface at particular kerbs the initial theories.
But with tyre debris hitting the helmets of drivers behind – Lotus' Kimi Raikkonen taking the biggest hit from the fall-out of Vergne's Toro Rosso – some are demanding changes before the next round in Germany. Jenson Button said: 'It's not just scary for the person driving the car, it's very scary for the person driving behind. The whole tread is coming off the tyre and if that hits you in the head then I don't know what might happen.
'Something has to be done but something was supposed to be done two races ago. The situation's obvious.'
Red Bull team principal Christian Horner echoed Button's words: 'We need a solution because someone will get hurt if that keeps happening. Something needs to be done.'
Pirelli will attend a meeting with the F1 teams during the week to discuss what happens next, with some suggesting a return to last year's rubber.
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