Ferrari’s SF-26 stands out for its narrower triangular airbox compared to its direct rivals, which have instead chosen to significantly enlarge their upper air intakes. This trend among other teams is largely driven by the increased thermal demands of the new-generation Formula 1 cars, which feature a more complex and more demanding hybrid system than in previous regulatory cycles. Ferrari, however, has opted for a different interpretation. Despite the compact airbox, the SF-26 also features a small additional intake positioned behind the driver’s helmet, a subtle solution designed to assist cooling and airflow management.
The SF-26 seen on track at Fiorano, even in what Ferrari described internally as a “basic” or initial configuration, immediately revealed several intriguing technical details. Among all the cars presented so far, or at least those that have completed a first shakedown run, the Ferrari appeared to be the closest representation of what will eventually be seen during the Barcelona tests. This choice was also appreciated from a communication standpoint, as Ferrari avoided using a dedicated show car or heavily modified digital renders, instead allowing fans and analysts to observe a car that closely resembles the real 2026 challenger.
One of the elements that generated the most discussion was the shape and size of the airbox. The surprise was not necessarily linked to its geometry alone. Ferrari has, in fact, continued its long-standing tradition by maintaining a triangular airbox, a design philosophy that has almost become a recognizable trademark of the Prancing Horse in recent years. What truly stood out was the overall approach, especially when compared to other single-seaters already seen on track or revealed so far, where engineers have clearly opted for much larger and more voluminous airboxes.
The most evident comparison can be made with Racing Bulls. The Faenza-based team has retained the same conceptual layout seen in the previous technical cycle, with two lateral “ears” flanking a more conventional central intake. However, the dimensions of these elements have increased noticeably compared to the past. Beyond the simple need for airflow, a closer look at the engine cover suggests that Racing Bulls has deliberately chosen to centralize a significant portion of its cooling system, redistributing internal volumes accordingly.
Many different interpretations of cooling
The VCARB03, in particular, features a very generous upper section, to the point where there is relatively little space left for the engine cover fin. This configuration provides a strong indication that the engineers have opted to position a long and narrow central radiator above the engine. By doing so, they are able to free up internal volume within the sidepods, gaining additional flexibility from an aerodynamic perspective and allowing for more aggressive shaping in those areas.
Mercedes has instead adopted a more intermediate and balanced solution. The airbox remains divided into three distinct sections, as seen in recent seasons, but the engine cover fin is noticeably larger than that of Racing Bulls. This detail suggests a different internal arrangement of the radiators beneath the bodywork, pointing to an alternative philosophy in managing airflow and thermal loads. Haas, continuing the design direction chosen from 2024 onwards, has also retained a three-section airbox, but once again with dimensions that are larger than those used in the past, reflecting the evolving cooling needs of the new regulations.
Ferrari, by contrast, has deliberately taken a different path. The team has remained faithful to the triangular airbox in order to achieve a cleaner, more streamlined upper profile, which appears significantly slimmer than that of its rivals. Part of the cooling system has therefore been kept within the sidepods, in line with Ferrari’s traditional approach. These sidepods feature an inlet that is not only horizontal but also extended vertically along the chassis, creating a profile that closely resembles an inverted “L” shape.
This solution allows Ferrari to carefully manage how air is drawn into the car and how it is subsequently guided around the bodywork. By extending the inlet vertically, the engineers can influence airflow structures along the side of the chassis, potentially improving efficiency downstream. It is a solution that reflects continuity rather than revolution, adapted to the constraints and opportunities offered by the 2026 regulations.
Ferrari has stayed true to its philosophy
Each team on the grid has followed its own technical philosophy, often shaped by past experience and internal development paths. In Ferrari’s case, the primary objective appears to have been cleaning up the airflow directed towards the rear wing and the rear end of the car. This intention can also be seen in the two small “horns” added on either side of the airbox. On their inner surfaces, these elements feature a specific profile designed to push airflow downwards, helping to better control the flow structures that reach the rear of the car.
This is a particularly important detail given that the regulatory box for the rear wing is now more restricted than in the past. The current rules are aimed at improving overall efficiency, which in turn limits the maximum downforce that can be generated directly by the rear wing. As a result, teams are increasingly focused on optimizing the quality of airflow reaching the rear wing, rather than simply relying on larger wing elements. Ferrari’s decision to adopt such a narrow airbox therefore represents a clear counter-trend compared to most of its competitors.
Indeed, almost all other teams have increased the size of their upper air intakes, in some cases quite significantly, while others have done so in a more moderate manner. This divergence underlines how open the current regulations remain in terms of cooling and packaging solutions, especially in the early phase of a new technical cycle.
This difference should not come as a surprise. The new Formula 1 cars, particularly at this initial stage of development, have cooling requirements that differ markedly from those of previous years. Not only has the amount of heat changed, but so has the way in which that heat needs to be managed. Ferrari has clearly invested a great deal of work in this area, also taking into account the lessons learned from recent seasons. Last year, McLaren demonstrated how an efficient and well-integrated cooling system can make a significant difference across multiple performance areas, from aerodynamic consistency to overall race pace.
On the Ferrari, there is also a small but intriguing detail that has attracted attention. To help the SF-26 “breathe,” a small additional intake has been introduced, almost hidden from view. This intake is located in the area beneath the airbox and contributes, albeit in a limited way, to the overall cooling process. While this is not a completely new concept, it is rooted in an approach Ferrari has already explored in the past, during periods when the area beneath the airbox was less crowded and structurally simpler.
Today, however, teams are required to design a much more robust structure in this region. Strong support pylons are necessary to absorb impacts and meet safety requirements, and within the same confined space teams must also route the cables needed for the recovery of a car that has stopped on track. This combination of structural and functional constraints significantly reduces the available space compared to earlier generations of cars.
As a result, this area is now far more enclosed than it once was. Positioned directly behind the driver’s helmet, it is also a zone naturally prone to turbulent airflow. Making such an intake work effectively therefore requires a careful and detailed study of both aerodynamics and internal packaging. The fact that Ferrari has still chosen to incorporate this solution highlights the level of confidence the team has in its cooling philosophy.
It remains particularly interesting to observe how Ferrari, while staying loyal to its established approach to cooling, has revisited solutions tested during previous technical cycles and adapted them to the demands of the new-generation Formula 1 cars. Rather than pursuing radical innovation for its own sake, the SF-26 single-seater reflects a philosophy of refinement, integration, and continuity, applied within a regulatory framework that still allows for a wide range of technical interpretations.
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