The Formula 1 world is again upside down after leaking a surprising and secret development: Max Verstappen recently completed a private test session with Mercedes-AMG Petronas F1 Team. The news has since been confirmed by several sources close to the German team and has immediately led to an avalanche of speculation about Verstappen’s future in sport.

According to insiders, the test session took place on a closed circuit in southern Europe, far away from the eyes of the media. Although the session would take place under absolute confidentiality, Verstappen was photographed on arrival in the field, accompanied by his personal trainer and a representative of his management.

What makes this test session even more explosive is the fact that he took place while Verstappen is still under contract with Red Bull Racing until the end of 2028. That immediately raises questions about tensions within the current camp of Red Bull – tensions that have only increased in recent weeks after Verstapens made to the team.

According to rumors, Verstappen rode in an adapted W15 – Mercedes ’car of the current season – equipped with special settings to analyze his feedback and driving style. The Mercedes technicians were reportedly impressed by Verstappens adaptability and constant lap times. A source that was present at the test stated:

“Max was immediately comfortable in the car. He gave sharp feedback, and his pace was impressive from the first rounds. It is clear that Mercedes would like to know how their car performs in the hands of the best driver in the world.”

The timing of this session is striking. Mercedes is located in a transition phase, with the upcoming departure from Lewis Hamilton to Ferrari in 2026. The team is actively looking for a new leader, and Verstappen would fit perfectly in that profile.

Red Bull’s reaction is not yet available. Christian Horner, the team boss of Red Bull Racing, has been confronted several times with questions about Verstappen’s future, but remained vague:

“Max is a crucial pivot in our team, and we assume that he is respecting his contract. But in F1 you never know what is waiting around the corner.”

Fans respond divided. Some are enthusiastic about the thought of Verstappen in a Mercedes seat, while others feel betrayed and blame him to let go of the loyalty to Red Bull.

One thing is certain: the Formula 1 world holds its breath. The mysterious test session with Mercedes might be the start of one of the greatest transfers in the history of sport.