F1’s 2027 power unit reset may offer Ferrari its best chance to close the gap to Mercedes. Formula 1’s planned 2027 power unit rule changes could create a major opportunity for Ferrari.

Formula 1’s technical regulations are set for another major adjustment next season. Each car’s power unit will shift to place greater emphasis on the internal combustion engine, which will receive an additional 50 kilowatts of power (approximately 68 horsepower), while the electric component will lose the same amount. The move comes in response to repeated concerns from drivers, as well as criticism from fans who have questioned the effectiveness and entertainment value of the 2026 regulations.

While the show that Liberty Media and Stefano Domenicali wanted was certainly present in Miami, the evenly balanced 50/50 split between thermal and electric power does not appear sustainable as the long-term foundation for Formula 1. The FIA has clearly recognised that the 2026 formula is not delivering exactly as intended, and for the good of the sport, changes are now being made.

With this regulatory shift on the horizon, Mercedes, as the benchmark power unit manufacturer, could actually find itself at a disadvantage heading into 2027. The key factor is the ADUO mechanism introduced for 2026, which will be officially finalised in terms of percentages and allocations at the upcoming Canadian Grand Prix.

F1 2027 – Why Mercedes-powered teams could be at a disadvantage

The ADUO could become the key variable that reshapes the competitive order. The acronym stands for Additional Development and Upgrade Opportunities, a regulatory mechanism introduced by the FIA to give struggling power unit manufacturers a chance to recover performance against the championship-leading benchmark.

If FIA evaluations determine that a manufacturer is running with a performance deficit between 2% and 4% compared to the current leader — at present, Mercedes — the governing body can authorise an additional engine development upgrade beyond the normal restrictions imposed by the regulations. If the deficit exceeds 4%, that manufacturer would be granted two exclusive upgrade opportunities instead.

The objective is to improve competitive balance, and in 2026 this system is expected to help reduce the performance gaps between manufacturers. However, when looking ahead to 2027 and the new 60/40 combustion-electric balance, the ADUO could become a decisive strategic factor.

That is because the additional development opportunities granted to manufacturers trailing Mercedes would apply exclusively to the internal combustion engine. This means rival power unit suppliers could bring upgraded and more competitive ICE packages as early as this season. The testing mileage and race weekends completed with these new engine developments would generate highly valuable real-world data for 2027 — data that Mercedes High Performance Powertrains would not be able to gather under the same framework.

This could create a potentially significant strategic advantage for Ferrari and other engine manufacturers currently trailing the Silver Arrows in pure power output.

F1 2027 – Ferrari’s final opportunity?

It is now widely understood that the Scuderia from Maranello is currently carrying a noticeable disadvantage compared to Mercedes when it comes to outright internal combustion engine performance. However, Ferrari’s SF-26 chassis and aerodynamic package have performed impressively, ranking among the strongest on the Formula 1 grid.

If Ferrari falls within the 2% performance deficit threshold — or even the 4% category — under the FIA’s ADUO assessments, the long-term benefits for 2027 could be substantial. This would not simply be about “equalising the playing field,” but about gaining a meaningful development edge through additional upgrades, data collection, and accelerated technical evolution.

In other words, the real advantage would not necessarily be immediate horsepower, but the opportunity to evolve the package faster than the current benchmark.

Unless further regulatory changes are introduced, next season could represent a major opportunity for Ferrari to use the ADUO framework to significantly reduce the gap to the front. The remaining question is which manufacturers will fall within the 2% or 4% thresholds — or beyond. Honda could also be one to watch.

Montreal is expected to provide definitive answers on which manufacturers will qualify for future development concessions. After that, the real work begins. Because while ADUO offers an opportunity, success will depend entirely on how effectively teams capitalise on it with fast, precise, and impactful upgrades. As always in Formula 1, potential alone means nothing without execution.