In motorsport, speed has always been the ultimate advantage. But the 2026 Formula 1 season has become a championship focused on braking. Success is no longer determined by “pure speed” alone, but by the driver’s and team’s ability to optimize hybrid energy. The new power units are operating in ways that sidestep the FIA’s original mandates. Although advertised as producing over a thousand horsepower, this peak output exists only for very brief moments. The following discussion is based on analyses carried out using the open-source software Fast F1 and builds on the excellent work of Wéber Gábor – Total Reset.
F1 2026: the FIA’s unfulfilled promises
In the FIA statement dated August 16, 2022, the governing body guaranteed that the 2026 Power Units would deliver performance levels comparable to those used in the previous season. This was to be achieved through high-revving, high-power V6 internal combustion engines while avoiding excessive performance differentiation to ensure better drivability.
However, managing the most significant technical revolution in the sport’s history has proven extremely complex. The continuous cycle of hybrid energy charging and deployment severely limits the peaks of the electric portion of the power units. From the earliest simulations, it became evident that merely recovering energy dissipated under braking was far from sufficient to fully recharge the batteries.
It became necessary to identify additional transition phases that could recover energy. One technique involves remaining in an active straight-line mode, reducing drag’s contribution to deceleration. Through carefully designed strategies that minimize lap-time loss, extra kilojoules of energy can be recovered before the braking phase begins. This approach is reflected in the performance data observed in the first two grands prix of the season.
Based on FIA data reprocessed with software, it is clear that during qualifying in Australia and China, drivers relied more heavily on braking compared to last season. Focusing only on pole position laps, George Russell used 1.9% more braking in Australia compared to the McLaren of Lando Norris, whose 2025 performance had secured pole position at the same track in that season.
The difference becomes even more evident when comparing pole data from the last two editions of the Chinese Grand Prix. This year, Kimi Antonelli achieved his first career pole by applying brakes for 20.7 seconds, compared to 14.7 seconds used by Oscar Piastri’s McLaren to secure pole in the previous season. This exercise is particularly relevant in anticipating energy management challenges for upcoming races.
Japanese Grand Prix: the ultimate test for hybrid systems
The next round at Suzuka promises to be the most demanding for the Energy Engineers of each team. Of the 20 races remaining in the season, the beautiful Japanese circuit—often described as a university for racing drivers—is one of the least forgiving for braking systems. Last season, Max Verstappen used his brakes for just 9.2% of the lap during his remarkable pole position, achieving the fastest qualifying time with minimal brake application.
This presents a significant challenge for the current 2026 Formula 1 power units, even when accounting for the natural increase in braking phases. Energy recovery over the lap will fall well below the thresholds set by the FIA. When combined with the layout of the track, which historically has made overtaking difficult, the problem becomes clear.
Consequently, qualifying and the race in Japan will likely be determined by the energy distribution maps that teams are testing in simulators. While the qualitative spectacle for fans may be less thrilling than previous races, the most critical issue remains the one highlighted earlier: hybrid energy optimization has become the defining factor for success.
The FIA has created regulations that have not fulfilled their original promises, prompting ongoing efforts to adjust a paradigm that is currently not working as intended. It is no secret that, aside from Mercedes, most teams and drivers are struggling to adapt to the new Formula 1 framework. Rapid adjustments are required, and according to current reports, the FIA is actively working on solutions to ensure the 2026 season delivers the competitive balance and performance consistency it originally aimed for.
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