McLaren boss Andrea Stella is worried “everyone will lose” if the proposed power unit changes are not adopted.

McLaren has urged a quick resolution to the ongoing stand-off over Formula 1’s power unit regulations, arguing that delaying changes would be detrimental to the sport’s future. Andrea Stella, the team principal of McLaren, warned that adopting the FIA-backed reforms is essential to the sport’s health, and that without consensus the entire F1 ecosystem could suffer.

At the heart of the dispute is the proposed shift in how power is distributed within the hybrid power units. The FIA’s package envisions moving from the current 50/50 balance between internal combustion engine (ICE) power and electrical power to a 60/40 split, favoring ICE performance while adjusting how electrical energy is harvested and deployed. The plan also includes changes to battery capacity and fuel flow, with the aim of addressing a range of technical and sporting concerns that have emerged as F1 enters a new era of powertrains.

Initially, the proposal appeared to enjoy broad support, but opposition has emerged from several manufacturers. Ferrari and Audi are reported to be at odds with Mercedes High Performance Powertrains (HPP), Red Bull Powertrains, and Honda, complicating the path to approval. For a package to pass at the Power Unit Advisory Committee (PUAC), a supermajority is required: four of the five power unit manufacturers must vote in favor, in addition to the FIA and Formula 1. That high threshold means that even seemingly straightforward reforms can stall if any single party with a veto raises concerns.

The subject rose to prominence again during the Canadian Grand Prix weekend, when Max Verstappen publicly cautioned that F1’s viability and competitiveness could be threatened if the regulations aren’t updated. He warned that “mentally, it’s not doable” to go forward without the changes, underscoring the real-world stakes for teams and manufacturers alike. Verstappen’s remarks highlighted the tension between maintaining performance parity, sustaining the sport’s entertainment value, and ensuring a sustainable business model for all stakeholders involved.

In conversations with the media, including RacingNews365, Stella articulated a clear stance in support of the FIA’s proposed 60/40 division. He acknowledged that hardware changes are complex and require coordinated action across multiple parties, but he stressed that the proposed package represents a meaningful step toward addressing chronic limitations seen in the current era’s power units. Stella explained that the EFI and battery-related components are interwoven with the broader performance goals, and that enhancing ICE power while recalibrating electric energy harvesting and deployment is part of a holistic approach to the sport’s evolution.

Stella’s position is grounded in a broader philosophy that prioritizes the long-term health and commercial value of Formula 1. He argued that sport success is inseparable from the business value of F1: if the championship fails to deliver compelling on-track action, innovative engineering, and a resilient economic model, all participants—teams, suppliers, sponsors, and fans—stand to lose. In his view, the 60/40 proposal is not merely a technical adjustment but a strategic framework designed to elevate racing quality, closeperformance gaps, and create a more stable platform for investment and competition.

The McLaren chief did acknowledge that translating the FIA’s concept into a fully workable solution will be challenging. The intricacies of harmonizing five manufacturers’ positions, ensuring reliability across a broad powertrain fleet, and aligning with regulatory timelines for 2027 require careful negotiation and concessions. Nevertheless, Stella remained optimistic that a constructive agreement is attainable, provided all parties recognize the broader benefits of reform and commit to a collaborative approach.

Beyond the technical considerations, the discussions touch on how power unit design interfaces with racing philosophy. Advocates for the 60/40 split argue that redistributing electrical energy and increasing ICE power could encourage more dynamic strategic choices, closer racing, and more meaningful combat between drivers. Critics, meanwhile, worry about the potential for increased complexity, higher costs, or unintended consequences across different teams’ setups. Stella contends that these concerns are manageable if a consensus is reached and implemented with careful oversight.

Looking ahead, McLaren’s stance is to remain constructive and engaged with the PUAC process. The team is prepared to advocate for reforms that, in its assessment, will make the championship more balanced, engaging, and sustainable. Stella’s insistence that “the general interest should prevail over particular interests” reflects a strategic calculation: a sport that preserves its sportiness and financial vitality stands a better chance of thriving than one that prioritizes short-term gains for a subset of participants.

As the conversation around power unit regulations continues, the clock is ticking toward a decision that could shape the regulations and performance of F1 for the next era. With Verstappen’s comments amplifying the sense of urgency, the next phase of talks will determine whether the 60/40 split materializes and whether a broad, four-manufacturer majority can be achieved in time to implement changes for 2027. McLaren’s call to action is clear: engage in serious negotiations, reach a consensus on a package that strengthens the sport’s value, and prevent a protracted impasse that risks undermining the competition’s appeal and financial viability.