Christian Horner, Red Bull's team principal, was booed by the crowd at the F1 75 Live 2025 launch event in London while introducing the RB21 car. Both drivers did not speak to the audience. Horner had earlier faced a dismissed complaint from a female employee. Max Verstappen, targeting a fifth consecutive title, discussed F1's new swearing rules and his intention to move past his conflict with George Russell, though he did not address the crowd.