McLaren Creates In-House Power Unit Team to Close Mercedes Knowledge Gap

McLaren has formed a dedicated in-house power unit performance team to close the operational gap with Mercedes under F1's 2026 regulations. Technical Director Mark Temple admitted the customer outfit felt "on the back foot" early this season because it lacked direct control over engine decisions and development timelines that works teams naturally enjoy.

Why it matters:

• The divide between works and customer teams has widened under the new rules, with Mercedes optimizing integration from day one while McLaren scrambled to catch up despite running identical hardware.
• This imbalance directly threatens McLaren's title hopes, as raw engine performance means little without the institutional knowledge to extract it.
• The move reflects a growing reality in modern F1: receiving equal-spec power units no longer guarantees equal opportunity on track.

The details:

• Temple explained Mercedes HPP operates a "main team" alongside customer support divisions, leaving McLaren in a "side loop" with influence but no final authority over configurations.
• While McLaren contributes to design and installation discussions, Mercedes Grand Prix and HPP control the timeline and ultimate decisions, often leaving McLaren with minimal time to adapt before races.
• The new team will study track data, integrate with race engineering, and use McLaren's simulator suite to optimize how the team deploys the Mercedes power unit across a race weekend.
• Temple described the partnership as "very collaborative," but stressed that building independent analytical capabilities is essential to overcoming the limitations of customer status.

What's next:

• McLaren plans to refine these internal processes through the rest of the season, aiming to react faster when Mercedes locks in race-weekend power unit settings.
• Though the works-team advantage will persist, Temple believes stronger in-house expertise will help McLaren maximize its Mercedes partnership and prevent future regulation changes from catching the team off guard.