Sergio Perez has endured a difficult season in Formula 1, costing Red Bull valuable points over the year in the Constructors’ Championship. The Mexican driver started the season well, scoring three podiums in the first four races but his form dipped over the summer. Perez has also failed to finish in the top five since the Miami Grand Prix in May, in a frustrating episode for the 34-year-old. He is heading into his home event at the Mexico City Grand Prix after a difficult weekend last time out, finishing in seventh place at the United States Grand Prix. Perez is also under pressure from New Z…