Pirelli boss Mario Isola fears the tyre supplier could be challenged to slot in 25 testing days into next season's schedule as it prepares for the introduction of 18-inch wheels in 2022. Pirelli had planned 25 days of testing this year in collaboration with all ten teams, but the program was scrapped following the onslaught of the coronavirus pandemic and F1's decision to postpone the adoption of 18-inch wheel until 2022. F1's exclusive tyre supplier will need to validate its tyre selection and compounds at a final test with all teams and mule cars at Abu Dhabi after the end of the 2021 season. But Isola is concerned that Pirelli may not have enough testing mileage or data behind it at...
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