Even without the finalised version of the regulations, the latest design sketches of the 2026 Formula 1 cars already reveal the margins for development and the areas where teams will have to work within strict limitations.
With the definitive rulebook still delayed, teams and suppliers are continuing to work through constant iterations and evolutions. The latest update, identified as ISSUE 13, did not change the fundamental concepts of the new cars but introduced a series of technical refinements. On this occasion, we had the exclusive opportunity to examine some of the early design sketches for the 2026 Formula 1 machines, which allowed us to better understand the possible development paths and the limited room for manoeuvre available to the teams.
On paper, the new generation of Formula 1 cars is designed with one major goal: to increase the spectacle on track by encouraging more overtaking and keeping the cars closer together. The rule changes should bring more electric power, less extreme aerodynamics, and slightly lighter cars compared to the current generation. This new technical cycle, which has been in development for more than two years, is still far from its final version. However, ISSUE 12 already provided a general picture of the proportions and shapes of the future single-seaters.
Ground effect will remain a central concept, but it will be integrated with a mix of aerodynamic solutions to make the airflow more efficient on the new cars. As exclusively gathered by the editorial team of F1inGenerale, the 2026 designs show that the room for development will be extremely limited in certain key areas. One such area is the “bib,” the forward section of the floor where the inlets split. The FIA has significantly increased the width along the Y-axis to reduce the possibility of controlled flexing that could otherwise enhance floor aerodynamics.
Source: f1ingenerale.com
Important changes are also evident in the new side “badgeboards” located along the floor. According to sketches we have seen, these panels feature horizontal slits designed to generate vortices, which help to better seal off the airflow between the floor and the sidepods. The sidepods themselves will continue to include a significant undercut and will maintain a downwash profile, as seen in current designs. This is necessary because the diffuser concept will remain similar to today’s generation of Formula 1 cars. However, the expansion area of the diffuser has undergone major modifications since ISSUE 12. The drawings also indicate that teams will be able to work on the floor walls, adding additional aerodynamic elements to refine performance.
In the reconstruction, we can clearly see the presence of “corner floors,” which are designed to increase local pressure differentials and improve the extraction of airflow from under the floor. This modification replaces the old wheel corners, which in the current generation play an important role in vortex generation.
At the front wing, only a few changes have been introduced, but the team that shared its sketches with us highlighted how extremely complex the management of the hydraulic actuators has become. These components, essential for fine-tuning front wing behaviour, are expected to play a critical role in balancing performance under the new regulations.
Source: f1ingenerale
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