Horner calls out McLaren's changes: "There will be a difference"

Red Bull and McLaren are caught in battles both on-track and off-track this season. Of course, on track, we know that they are going head to head in the constructors' championship, as are Max Verstappen and Lando Norris in the drivers' championship. But off-track, both teams are also involved in a fierce battle regarding car development and regulations.