Fourth Problem Emerges: McLaren Flags Additional Straight Mode Worry at F1 Commission Talks
McLaren Team Principal Andrea Stella has identified a fresh concern regarding the 2026 power unit regulations, adding to three previously documented issues with the new technical framework. The worry surfaced during F1 Commission discussions as the sport prepares to implement a revolutionary new power unit concept that significantly increases electrical energy dependency.

McLaren Team Principal Andrea Stella has expanded his list of concerns surrounding the 2026 Formula 1 power unit regulations, bringing a fourth significant issue to the forefront following discussions at the F1 Commission.
The Woking-based outfit had previously articulated three major worries about how the new power unit rules would function, but a fresh problem has now emerged from the ongoing negotiations and technical meetings. This development comes as the sport gears up to implement sweeping regulatory changes in 2026, fundamentally restructuring how power units operate.
The 2026 regulations mark a watershed moment for F1's technical direction, with electrical energy playing a substantially more prominent role than in previous seasons. This shift in philosophy is expected to reshape competitive dynamics and fundamentally alter how teams approach racing strategy throughout the 2026 season. The increased emphasis on hybrid technology and electrical components represents one of the most transformative changes to the sport's power unit architecture in recent memory.
Stella's mounting concerns suggest that stakeholders remain actively engaged in refining these regulations before their implementation, with the F1 Commission serving as the platform for these critical discussions about the technical framework's viability and fairness across the grid.
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Related Regulations
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Full Regulation Text
Article 2.2
2026 Power Unit Regulations
Chapter: Chapter II - Power Unit Changes
In Simple Terms
2026 brings major engine rule changes. The complex MGU-H is removed to cut costs and attract new manufacturers. To compensate, the MGU-K becomes much more powerful and the battery is bigger. The goal is simpler, more sustainable power units that are still cutting-edge.
- MGU-H removed from power units
- MGU-K power increased significantly
- Larger energy store capacity
- Aims to attract new manufacturers
Official FIA Text
For 2026, the power unit will comprise a 1.6 litre V6 turbocharged internal combustion engine with a significantly enhanced electrical component. The MGU-H will be removed. The electrical power output will increase substantially with a more powerful MGU-K and larger energy store.
Article 5.1
Definition of a New PU Manufacturer
Chapter: SECTION C: TECHNICAL REGULATIONS
In Simple Terms
A 'New PU Manufacturer' is a company entering F1 for the first time that hasn't built power units before (2014-2021) and hasn't inherited significant technology from existing manufacturers. If approved by the FIA, they receive special benefits and exemptions for 5 years (from 3 years before entry through 1 year after). The FIA evaluates applicants based on their facilities, engine experience, and ERS system knowledge.
- New PU Manufacturers must meet two conditions: no prior homologation since 2014 AND no significant inherited IP from established manufacturers
- Approved new manufacturers receive a 5-year window of special rights/exemptions (N-3 to N+1 calendar years)
- The FIA has absolute discretion in granting status and evaluates applicants on infrastructure investment, ICE experience, and ERS system expertise
Official FIA Text
A PU Manufacturer intending to supply PUs for the first time in year N, will be considered to be a "New PU Manufacturer" if it (or any related party): a. has not homologated a PU at least once in the period 2014-2021; and b. has not received any significant recent Intellectual Property from a PU Manufacturer who is not a New PU Manufacturer, subject to the conditions outlined in Article 5.2 of this Appendix. (together, for this Article 5 only, the "Necessary Conditions") The "New PU Manufacturer" status will be granted by the FIA, at its absolute discretion, for the complete calendar years from N-3 to N+1. In order to be granted the "New PU Manufacturer" status, the PU Manufacturer in question must, upon the request of the FIA, provide the FIA with all of the detailed information or documents requested by the FIA describing the commercial background and details of the PU Manufacturer's business, the Intellectual Property owned by the PU Manufacturer and the technical relationship between the PU Manufacturer and any other related entity or persons (the "Requested Documentation"). PU Manufacturers granted a "New PU Manufacturer" status are given additional rights or exemptions in certain provisions of the Technical, Sporting and Financial Regulations. In order to assess whether the Necessary Conditions have been satisfied by a PU Manufacturer, the FIA will assess the Requested Documentation provided by the PU Manufacturer with regard to three factors: a. Infrastructure: the necessity for the PU Manufacturer to build facilities, invest significantly in assets, and hire personnel with prior Formula 1 experience; b. ICE status: the prior experience of the PU Manufacturer in Formula 1 Internal Combustion Engines, and potential possession of significant recent Intellectual Property; and c. ERS status: the prior experience of the PU Manufacturer in Formula 1 ERS systems, and potential possession of significant recent Intellectual Property.
Article 3.11
Minimal incidental changes due to modifications to other PU components
Chapter: APPENDIX C5: HOMOLOGATION AND DEVELOPMENT OF POWER UNITS, FUEL AND OIL FOR 2026-2030
In Simple Terms
Teams can make small, necessary changes to one power unit part if they've modified a different part on a different upgrade schedule. These minor tweaks need official approval before implementation. Think of it as allowing knock-on adjustments when upgrading components.
- Small unplanned changes to PU components are allowed if they result from upgrades to other components
- The different components must be on different upgrade schedules to qualify
- All modifications require approval through the official process in Article 3.10.a
- These are truly 'incidental' changes only—not major redesigns
Official FIA Text
Minimal incidental changes may be carried out on PU components as a consequence of changes made to another PU component with a different upgrade schedule. Such modifications are subject to the approval process outlined in Article 3.10.a of this Appendix.
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