Dec.1 Mario Isola admits Pirelli needs to improve its full-wet tyres. After the wet weather delays at Suzuka, quadruple world champion Sebastian Vettel described the sport's official rain tyres as 'junk'. Pirelli's F1 boss Isola doesn't deny it. 'We need to improve the full wets in terms of performance,' he told motorsport-magazin.com. 'That is why we have already planned some winter tests.' Isola has argued that Pirelli simply isn't allocated enough time by the teams or in the regulations for dedicated wet-weather tyre development. 'We had a session in Fiorano with 45 degrees track temperature, but even in Malaysia there are no temperatures like that so it was an impossible task,' he...
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