F1 2030 engine debate: V8 plan could feature a standard KERS instead of a spec engine. F1 2030 engine regulations: Why only the KERS could become standard across the grid.

The debate over Formula 1’s future engine regulations continues to intensify, with the FIA’s proposal for a naturally aspirated V8 engine from 2031—now expected to be brought forward to 2030—fueling contrasting opinions among manufacturers and teams. While a final decision is expected before the end of the current season, the visions for Formula 1’s next engine era remain far from aligned.

Some reports have suggested, rather imaginatively, that certain parties are pushing for a single naturally aspirated engine that would be identical for every team from 2030 onwards. In reality, that idea has never been discussed. The proposal currently on the table comes from FIA President Mohammed Ben Sulayem, who has suggested making an independent naturally aspirated engine available to customer teams through an external supplier.

The FIA’s objective is to reduce the level of dependence customer teams have on manufacturers, a relationship that often creates not only sporting limitations but also political influence. Over the past two seasons, McLaren has demonstrated that a customer team can outperform a factory outfit, winning the Constructors’ Championship in 2024 before securing both world titles in 2025.

However, the landscape has changed significantly with the arrival of the new 50-50 Power Unit concept, where electrical and combustion power contribute equally to overall performance. These new engines are still in full development, and manufacturers such as Mercedes naturally want to protect the competitive advantages of their M17 E Performance V6. This includes deciding when customer teams receive updated engines and retaining exclusive control over certain energy management strategies.

For example, Alpine and Williams received Mercedes’ third-specification engine at Silverstone after the Brackley team had already introduced it in Austria, benefiting from reliability improvements. McLaren, however, remained on an earlier specification because its delayed start to the season due to well-known technical issues meant its engines had accumulated fewer kilometres and had not yet reached the end of their planned lifespan.

McLaren CEO Zak Brown reportedly expressed frustration at having to rely so heavily on Mercedes, and that situation has once again brought the discussion surrounding Formula 1’s planned 2030 engine regulations back into focus.

The FIA would like to see the emergence of an independent engine supplier, similar to the role Cosworth once played, capable of supplying customer teams wishing to free themselves from dependence on manufacturers. Under this proposal, the governing body would finance the development of the engine before offering the naturally aspirated V8 to interested teams at a controlled and affordable price.

Meanwhile, an intense debate continues between those who support Mohammed Ben Sulayem’s vision and those who remain opposed. Supporters favour a 2.6-litre naturally aspirated V8 combined with a 90-100 kW KERS system, powered by sustainable fuel costing no more than €10 per litre—far below the current cost of e-fuels, which can exceed €200 per litre.

There is, however, growing support for introducing a single supplier for the hybrid system. Standardising only the KERS could reduce the technical complexity seen today while significantly lowering development costs without forcing teams to use identical internal combustion engines.

The target would be an engine capable of delivering the sound Formula 1 fans have long demanded while remaining environmentally sustainable and costing no more than €500,000. Not all manufacturers agree with that vision, however. Mercedes and Audi, for example, remain opposed to a naturally aspirated engine because they believe efficiency must remain one of Formula 1’s defining technological pillars. Without turbocharging, they argue, engine efficiency would fall well short of the standards now achieved by both Formula 1 Power Units and modern production engines.

As a result, the debate remains wide open, and the FIA will need to reach a decision quickly if the intention is to introduce the new regulations as early as 2030 instead of 2031.

One major question also remains unanswered: could an independently developed engine genuinely compete with those produced by the major manufacturers? Formula 1 has repeatedly shown that seemingly small differences in engineering solutions, materials and manufacturing processes can produce substantial performance gains. It is therefore fair to ask whether an independent engine supplier would truly represent the best solution, or whether Formula 1 should instead encourage every team to develop its own relatively low-cost Power Unit.

History suggests that manufacturer-built engines almost always retain a competitive advantage. Customer teams may therefore continue to prefer partnerships with established manufacturers capable of delivering the strongest overall package, unless Formula 1 succeeds in attracting new engine brands eager to benefit from the championship’s enormous global exposure. The time for debate is quickly running out, and the sport is expected to make some crucial decisions before the end of the year.