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McLaren's Stella identifies power unit and driver tools as key development areas after Barcelona test
8 February 2026F1i.comPractice reportPreview

McLaren's Stella identifies power unit and driver tools as key development areas after Barcelona test

McLaren boss Andrea Stella says fully exploiting the new power unit and mastering driver-controlled aerodynamic tools are the two biggest opportunities for performance gains after the MCL40's first test. The car performed as simulated, providing a solid base for a steep development curve.

McLaren team principal Andrea Stella has pinpointed two critical areas for immediate improvement following the MCL40's first major track outing in Barcelona: maximizing the new power unit's potential and optimizing the driver's expanding suite of in-car control tools. The three-day test provided essential real-world data, confirming the car as a "good starting point" with a steep learning curve ahead for both team and drivers.

Why it matters:

In a tightly competitive field where marginal gains define success, Stella’s focus highlights where early-season performance can be unlocked without major car upgrades. Mastering the complex interaction between driver inputs and the car's new systems could provide McLaren with crucial tenths of a second as the development race intensifies.

The details:

  • The Barcelona shakedown was deemed a success, with the MCL40's on-track behavior aligning closely with simulation predictions—a valuable outcome that several rivals have struggled with in recent seasons.
  • Stella emphasized the "very steep" learning curve for drivers and engineers, noting that every lap provides useful performance data for a car that is "totally new, from A to Z."
  • The primary areas for development are not purely aerodynamic or mechanical:
    • Power Unit Exploitation: Significant performance is believed to be latent in fully understanding and harnessing the capabilities of the new power unit through driver-controlled settings.
    • Aero Mode Management: Drivers have a new "toolbox" for managing the car's variable aerodynamic configuration, switching between Corner and Straight Modes, which requires optimization.

What's next:

The work now shifts from validation to exploitation. McLaren's immediate task is to translate the data from Barcelona into performance gains by helping drivers Lando Norris and Oscar Piastri better utilize the car's systems. Development will be a continuous process, with the team using this foundational knowledge to guide its in-season upgrade path for the MCL40.

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