Formula 1’s next-generation regulations were originally built around the new Power Unit framework, featuring an approximate 50-50 split between internal combustion engine (ICE) power and electrical energy. However, the results seen from virtual simulations through to real-world track testing have not been entirely convincing, reinforcing concerns that the project may have been too ambitious and not fully aligned with Formula 1’s traditional DNA of extreme performance and pure competition.
The drivers have been among those most affected by these concerns. Under the current projections, they would be unable to push flat-out throughout qualifying laps and would also be required to manage a significantly higher number of parameters during races. As a result, Formula 1, the FIA and the teams have spent months discussing potential solutions, both publicly and behind closed doors, in an effort to introduce improvements for the future, starting as early as 2027.
While discussions continue regarding the long-term future of Formula 1 power units, including the possible return of V8 engines, the immediate focus has been on adjustments required for the next regulatory cycle. The main objective is to move away from the original 50-50 concept, although several manufacturers continue to regard it as a fundamental pillar of the regulations.
Audi, in particular, remains strongly supportive of the current concept, while Ferrari has also expressed caution, largely to avoid extensive redesign work on the power unit itself. Such changes could force some teams to develop entirely new chassis, creating unexpected costs ahead of next season. Another major consideration is limiting the potential advantages linked to the ADUO concessions system.
By altering the foundations of these power units, manufacturers that currently do not benefit from certain concessions would also become eligible for additional development hours and budget allocations. In this specific scenario, Red Bull would be the primary beneficiary, as Mercedes has already secured concessions after being measured at a two-percent performance deficit compared to the benchmark. Despite these differing interests, all manufacturers agree that modifications are necessary for the overall benefit of Formula 1.
Following lengthy negotiations, the FIA has now officially announced the proposed changes for the 2027 and 2028 regulations, moving towards a gradual evolution of the current rules. The FIA, Formula One Management (FOM), teams and manufacturers have reached an agreement on a package of technical, sporting and financial regulation amendments, which will be submitted for approval by the World Motor Sport Council during its meeting on June 23 in Macau.
The proposed changes are designed to address concerns surrounding energy management and fuel energy flow characteristics. The objective is to make qualifying sessions more focused on outright performance and flat-out driving while preserving the close and exciting racing that the new regulations are expected to deliver.
The package introduces a gradual rebalancing of the contribution provided by the internal combustion engine (ICE) and the Energy Recovery System (ERS) throughout the 2027 and 2028 seasons. It includes targeted interventions affecting ICE power output, fuel energy flow and ERS deployment, while also providing greater flexibility in energy management strategies.
Additional measures are included regarding Power Unit supply conditions, race operations and relevant financial regulation provisions, ensuring that the broader regulatory framework remains aligned with the technical changes.
The 2026 Formula 1 regulations were originally developed and approved through close cooperation between the FIA, Formula One Management, teams, automotive manufacturers and Power Unit suppliers. These latest amendments represent a continuation of that collaborative process, with all stakeholders committed to refining the regulations and resolving the operational challenges identified during development.
The final approval process will now move to the World Motor Sport Council, where the proposed measures are expected to be formally reviewed before becoming part of Formula 1’s regulatory roadmap for the 2027 and 2028 seasons.
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