Pirelli motorsport boss Mario Isola fears the F1 supplier's 2019 compounds could face overheating issues as cars sustain their development rate based on the sport's unchanged regulations. Late last year, F1 teams unanimously rejected a switch to the 2020-spec tyres that Pirelli had developed over the course of last season, based on assessments of the rubber conducted in Austin and in Abu Dhabi, but also because adopting the new-spec tyres would have forced late design changes to the teams' 2020 contenders. The decision means the filed will be supplied with the same specification of tyres this season as in 2019. But evolution and development of this years' cars will ensure a lift in...
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