This year, at least up until this point in the 2026 Formula 1 season, Ferrari has firmly established itself as the only team consistently capable of challenging Mercedes for the Formula 1 Drivers’ and Constructors’ Championships. While Ferrari’s competitiveness on track has been remarkable and immediately noticeable, the Maranello-based team has also stood out for an exceptionally high level of innovation, particularly from an aerodynamic perspective, demonstrating once again that Ferrari is willing to push the boundaries of engineering to gain a competitive edge over their rivals.
During the pre-season testing sessions held at the Bahrain International Circuit, the new Ferrari SF-26 immediately drew widespread attention for an unprecedented aerodynamic feature: a small wing or fin positioned strategically in close proximity to the car’s exhaust. This innovative element was designed with the specific goal of improving the airflow toward the diffuser at the rear of the car, an area crucial for generating downforce and maintaining stability through high-speed corners. The careful positioning of this wing highlighted Ferrari’s focus not just on raw engine performance but also on the subtleties of aerodynamic efficiency, which have become increasingly important under the current Formula 1 technical regulations.
Later during the same pre-season tests at the Bahrain International Circuit in Sakhir, Ferrari once again surprised the Formula 1 paddock by introducing another remarkable innovation: a rotating rear wing system. This innovative rear wing featured an upper element capable of rotating a full 180 degrees when the car’s active aerodynamics system was engaged. The rotation of this component allowed Ferrari to significantly reduce aerodynamic drag along the straights, thereby improving top speed without compromising downforce in corners. This kind of adjustable aerodynamic feature, while fully compliant with existing regulations, was a clear demonstration of Ferrari’s commitment to exploring every technical avenue available under the rules.
However, the Prancing Horse did not stop innovating there. During the Shanghai Grand Prix weekend, the Italian side introduced yet another technical development designed to enhance the car’s aerodynamic performance: the so-called “Hali,” a set of small aerodynamic appendages mounted on either side of the Halo device that protects the driver’s head. These aerodynamic fins, positioned carefully on the central pillar of the Halo, were designed with the objective of optimizing airflow around the helmet of the driver and the cockpit area. By subtly influencing the movement of air in this critical zone, the fins contributed to generating a small but meaningful increase in downforce, potentially improving overall car balance and performance in medium- to high-speed corners.
The innovative Halo-mounted components were installed on the cars of both Ferrari drivers, Lewis Hamilton and Charles Leclerc, for use during the free practice sessions and for the Sprint race held on Saturday. However, as had already been reported in previous coverage, despite the fact that this technical update had already been formally approved by the FIA and was included in the official documentation for the Grand Prix, the fins were removed following the conclusion of the 100-kilometer Sprint race. They were not used again for the remainder of the race weekend, leaving fans and technical analysts curious about the reasons behind this sudden decision.
The regulatory question: are they legal?
Although the cars passed standard technical checks following the Sprint race, without these specific Halo-mounted fins being individually scrutinized in detail, the attention of the FIA quickly turned toward the question of their legality. The Halo area is one of the most strictly regulated zones on a Formula 1 car, with precise limitations designed to maintain driver safety while ensuring fairness in aerodynamic development. Current regulations allow only certain types of fairings in the upper zone, often referred to as the “RV-HALO,” while imposing significant restrictions on what can be added to other areas surrounding the device.
So how did Ferrari manage to introduce these aerodynamic fins in a region that no other Formula 1 team had ever explored or exploited before? The answer appears to lie in a genuine “grey area” of the technical regulations. The so-called “Hali” fins are not constructed from traditional carbon fiber or metal materials, as is typical for aerodynamic components, but instead are made from a transparent material. It is precisely this choice of material that appears to make all the difference from a regulatory standpoint. Within the official Formula 1 technical regulations, the use of transparent material is explicitly permitted for only a single type of element: the windshield.
According to some technical interpretations from industry experts and regulatory analysts, Ferrari appears to have taken advantage of this specific allowance to create a form of “aerodynamic windshield,” sculpted into the shape of small, functional wings. Under the current regulations, teams are permitted to use a transparent element within strict limitations regarding size, positioning, and overall compliance. When pushed to the limits of these specifications, it seems that Ferrari’s innovative solution could legitimately fit within this regulatory framework, providing a subtle aerodynamic benefit without technically breaching any existing rules.
Why did Ferrari remove the Halo fins?
Despite the fact that, according to the official written regulations, the components introduced by the Maranello-based team were technically legal, the FIA requested clarifications from Ferrari regarding both the geometric conformity of the fins and the specific material used in their construction. In particular, a separate article within the regulations explicitly specifies that fairings added to the Halo device must be made from certain pre-approved materials, none of which include the transparent substance chosen by Ferrari.
Faced with these regulatory questions and in order to avoid time-consuming disputes with the FIA, the Maranello engineers and technicians made the strategic decision to remove the fins during the Shanghai race weekend itself. By taking this precautionary step, Ferrari minimized the risk of penalties or even disqualification, while allowing the team to continue focusing on optimizing performance on track without being distracted by potential regulatory conflicts. This decision reflects the careful balancing act that teams must manage in modern Formula 1, where innovation and rule interpretation often exist in a delicate equilibrium with formal compliance and the risk of sporting sanctions.
With a two-week break before the next Grand Prix, Ferrari now has the opportunity to engage in detailed discussions with the FIA to clarify the situation once and for all. It remains to be seen whether the Maranello team will choose to defend this technical solution aggressively, attempting to demonstrate its full legality within the existing regulations, or whether the team will decide to abandon the concept entirely in order to redirect resources toward other areas of car development. What is certain, however, is that Ferrari has once again demonstrated its willingness and ability to explore the limits of the regulations, pushing technical boundaries in ways that continue to generate discussion and debate throughout the Formula 1 paddock.
The Halo-mounted fins therefore serve as yet another example of Ferrari’s long-standing philosophy of combining innovation with strategic ingenuity. While on-track performance remains the most visible measure of success, the subtleties of aerodynamic interpretation, regulatory navigation, and creative engineering continue to be key factors in the team’s competitive approach.
