British Grand Prix 2013: Drivers threaten to boycott German Grand Prix after dangerous tyre explosions "The safety is the biggest issue," Hamilton said. It's just unacceptable. We had that tyre test to develop and improve the tyres to stop that from happening and after that tyre test they didn't do anything. Someone could've crashed. I was thinking behind the safety car that it's only when someone gets hurt that something will be done about it. McLaren's Sergio Perez echoed Hamilton's words, saying it was extremely fortunate that no one had been hurt. "It was not dangerous this time because it happened on the straight but it could have been really serious," he said. We are risking our lives and if something like this happens again, we don't want one of us to be killed. There have now been 20 tyre failures this season alone, with the Grand Prix Drivers Association writing to FIA president Jean Todt last month to demand action. McLaren's Jenson Button, Red Bull's Sebastian Vettel and Ferrari test driver Pedro de la Rosa then went to see Todt in person at Silverstone over the weekend to impress upon him the urgency of the issue. The FIA released a statement last night saying that Todt had "demanded that Pirelli participate in the Sporting Working Group meeting on Wednesday to take the necessary measures to deal with this issue that poses a safety problem." It added: "Our priority is the safety of the drivers. This is why we have asked for an immediate proposal after the analysis. Pirelli motorsport director Paul Hembery said it was too early to draw any conclusions, with Silverstone's kerbs also being mooted as a possible cause for the failures, but he did exclude a new bonding process on the tyres introduced at Silverstone. Pirelli's tyres have dominated the news agenda all season, with complaints not only about safety but about the style of racing caused by their fast-degrading rubber. As far as the racing is concerned, Pirelli can justifiably claim that they are only producing what they have been asked for. As for the issue of safety, they say their hands are tied by the ban on in-season testing and the paranoia which means teams will not give them current cars with which to test. It was this situation that led to Pirelli's controversial test with Mercedes. To further muddy the waters, Pirelli have not yet been offered a contract for 2014, with the FIA reportedly keen to bring in Michelin. The Italian company is believed to be considering legal action if a tender to supply tyres next year is put out. In the meantime the issue of tyre safety will occupy everyone's minds. A proposal to return to last year's tyres, which were kevlar, rather than steel-bound, has been mooted but it is thought that three teams - Lotus, Ferrari and Force India - object on the grounds that the current tyres broadly benefit them. Red Bull team principal Christian Horner said it was time to put performance differences aside for the sake of the common good. "I don't think they should cancel Germany," he said. The most logical thing would be to go back to the tyres they have had previously which did not have these failures. The problem with that is that teams are seen to be chasing a competitive advantage but we were leading the race on these tyres today and we have won races on these tyres. I would urge the change purely on the grounds of safety. Driver safety comes above any performance criteria. Whether they go back to last year's tyre or a different one, they need to find a solution.