Valtteri Bottas is wary of Mercedes suffering with overheating its tyres due to the high track temperatures at Silverstone but is content with his progress after Friday practice. The Finnish driver is looking to bounce back from a mechanical DNF triggered by a hydraulics issue last week at the Austrian Grand Prix, with Mercedes forced into making a provisional engine change to monitor the issue. With Bottas already using his last permitted engine of the year, while Mercedes is confident the previous one will still be useable, the Finn is keeping an eye on Ferrari’s pace after Sebastian Vettel topped Friday practice for the first time in 2018. Bottas ended FP2 third quickest, with less...
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