Marc Priestley has now told Sergio Perez his fate as Red Bull weigh up the Mexican’s future with the team after what the BBC pundit has heard from the Formula 1 outfit. Perez may have felt he had overcome the ever-increasing pressure to stay at Red Bull back in June. But since signing a two-year contract extension with the team from Milton Keynes, the question marks have only returned larger than ever amid a host of disappointing results. Red Bull sought to extend Perez’s contract ahead of this season’s Canadian Grand Prix after earning four podiums in the first eight rounds. The team even ele…