Mercedes boss Toto Wolff says a team's ability to understand Pirelli's thinner tread tyres and adapt to their characteristics are big factors of performance this season. In a bid to reduce risks of overheating and blistering, Pirelli has reduced the tread of its tyres this season, a change that has thrown a wrench into the works of teams this year as everyone struggles with the narrow operating window associated with the new rubber. Haas' Guenther Steiner is up in arms with how the US outfit's 2019 contender - which showed great promise in pre-season testing - has now lost its performance on long runs as it struggles to warm up its tyres. Grosjean getting 'f***ing' annoyed with Haas tyre...
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