A handover of responsibilities, starting in Austin
Tom Hart is expected to act as Max Verstappen’s race engineer throughout the United States Grand Prix weekend, according to PlanetF1’s reporting. The publication also identifies Brazil and Las Vegas as planned assignments. The reported plan is a controlled transition towards 2027, when Hart would take over permanently. The information about these rounds comes from the publication’s reporting rather than a Red Bull statement formally setting every detail of the handover.
Lambiase would remain with the team at the circuit
One detail changes the meaning of the story: PlanetF1 reports that GianPiero Lambiase would attend all three rounds and return to his usual role in Qatar and Abu Dhabi. Hart taking over communications therefore should not be described as Lambiase being absent from the paddock. The publication notes that Hart has already worked with Verstappen during practice at Monza. The reported schedule provides experience in real conditions ahead of the permanent change.
| Topic | What the source says |
|---|---|
| Austin, Brazil, Las Vegas | Hart would take over race-engineering duties · PlanetF1 |
| Lambiase’s attendance | Would remain at the circuit · PlanetF1 |
| McLaren move | Officially confirmed; starts no later than 2028 |
What McLaren has already confirmed
Lambiase’s move to McLaren is a separate fact, officially confirmed on April 9. The British team announced him as its future Chief Racing Officer, reporting to Andrea Stella and holding overall leadership of the race team. The release states that he will start after his existing contract ends, no later than 2028. It does not set an exact 2027 start date. Preparing his Red Bull successor and fixing his first working day at Woking are therefore separate developments.
Singapore demonstrated the importance of communication
In the official FIA press conference after his Singapore victory, Verstappen explained that his radio messages had been difficult to transmit. Lambiase tried coded questions, while the driver said radio difficulties had followed him during the season and had been particularly pronounced that weekend. These comments establish the technical problem rather than its internal cause. They do provide a concrete example of the driver and engineer having to keep working when information is incomplete.
Why a new voice in the headset matters competitively
APEX’s explanation: the race engineer is the driver’s main link to the technical group. Messages about tyres, traffic, procedures and settings must be condensed into moments when the driver can act. Consistent language also builds trust: the same observation needs to mean the same thing to both people. An adaptation period can help test those routines. It does not establish a measurable lap-time gain or indicate a conflict with the previous engineer.
The next reference point is their first full weekend together
For Austin, the useful reference points will be team confirmation and how the partnership works through practice, qualifying and the race. The table above separates the current reporting from McLaren’s already announced appointment. APEX’s interpretation is that operational continuity is the central issue: a quick driver needs clear decisions and stable communication, whoever occupies the engineer’s seat.
