Mercedes technical director James Allison has admitted that there is a fear they will be unable to replicate their success in the upcoming 2021 season.The silver arrows have won seven straight Constructors’ Championships and are the overwhelming favourites to do so again.Those hopes have only increased with world champion Lewis Hamilton confirming he will be in the car for at least one more season.Hamilton’s future within F1 had come into focus, with the Brit technically unemployed following the expiration of his previous deal last year.But the seven-time Drivers’ Championship winner ended speculation by signing a new one-year contract earlier this month.Despite that, Allison has claimed that until they see the new car on the track, there.
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