When Carlos Sainz discovered that he would be losing his Ferrari seat next year, he would have immediately turned his attention to the fastest team in the paddock. Red Bull have a decision to make on the future of Sergio Perez with his contract expiring at the end of the season but it appears as though the Mexican will be retained beyond this year. Speaking on The Race’s YouTube channel, journalist Scott Mitchell-Malm was speaking about some of the reasons why Red Bull didn’t decide to move for Carlos Sainz including one aspect of a deal they won’t want to publicly admit. In a head-to-head bat…