Ferrari approaches what could represent its final real opportunity to give substantial meaning and purpose to its 2025 Formula 1 campaign. With the highly anticipated Belgian Grand Prix taking place at the legendary Spa-Francorchamps circuit, the championship officially enters the second half of the season. This race weekend stands out as a pivotal turning point from a development perspective for all teams on the grid. Following the event at Spa, there will be no further significant upgrades introduced by teams. Everything that has been brought to the track so far during the current season will instead be refined, optimized, and adapted for consistency and reliability rather than raw innovation. Therefore, this marks the final realistic opportunity for Ferrari to substantially elevate the performance level of its SF-25 single-seater.
At the Belgian Grand Prix, the Ferrari engineers and technicians are set to unveil a newly developed rear suspension system on the SF-25 Formula 1 car. This crucial component has already undergone preliminary track evaluation during a dedicated test session held last week at the team-owned Mugello Circuit located in Tuscany. According to sources within the Maranello-based outfit, there is cautious but growing optimism surrounding the potential of this update. Initial analysis of imagery and data confirms that this is not a revolutionary redesign but rather a targeted and calculated evolution of the existing concept. The technical engineers at Ferrari, operating under the leadership of performance director Loïc Serra, have primarily focused their efforts on modifying the geometry of the upper wishbone. Specifically, they have altered the mounting point of the first arm within the pull-rod suspension layout at the rear of the car.
The resulting configuration shows a noticeably greater inclination toward the front axle, which is a strong indicator that Loïc Serra and his team have sought to enhance the car’s anti-squat performance. The reasoning behind this technical decision is relatively straightforward and aligns with fundamental suspension dynamics: the goal is to reduce the amount of vertical compression experienced by the rear suspension assembly during specific phases of cornering and acceleration over the course of a lap.
Throughout the upcoming race weekend in Belgium, which marks the 13th round of the 2025 Formula One World Championship, it will be possible to assess the effectiveness of this new rear suspension in greater depth and detail. However, the Spa-Francorchamps weekend follows the sprint format, meaning that there will only be one free practice session available to validate and fine-tune the new component. This limitation imposes an added challenge, especially considering the complexity of the Spa circuit. For this reason, Ferrari strategically utilized one of its permitted filming days earlier this month, in part to gather preliminary data, evaluate early behavior, and increase understanding of the rear suspension upgrade before its official race debut.
The Spa-Francorchamps circuit in Belgium is renowned for being one of the most technically challenging and physically demanding tracks on the entire Formula 1 calendar. The unique layout forces teams to pursue a highly delicate and often elusive compromise between aerodynamic efficiency and mechanical grip. This trait has consistently posed problems for the Ferrari SF-25 car throughout various phases of the current 2025 season.
The first and third sectors of the Spa circuit are composed of fast straights and sweeping high-speed corners, such as Eau Rouge and Blanchimont, where reaching high top speeds is essential to remain competitive. These high-speed portions reward aerodynamic efficiency and low drag, an area in which Ferrari has managed to maintain a relatively competitive edge with the SF-25. However, the central sector of the circuit is composed of a series of medium- and high-speed corners, including iconic sequences like Les Combes and Pouhon. These sections demand a high level of downforce and vertical load to generate the necessary grip. Additionally, the layout features very slow corners—such as the famous La Source hairpin at Turn 1 and the final chicane that leads back onto the main straight—requiring excellent traction and mechanical stability.
In essence, the Spa-Francorchamps track offers a full spectrum of speeds and cornering profiles, which forces every Formula 1 team to search for a delicate equilibrium between all performance variables. For the Italian side, this type of balance has too often been difficult to achieve with consistency throughout the current campaign.
Fortunately, the updated floor introduced during the Austrian Grand Prix weekend has delivered promising results. The upgrade appears to have widened the car’s optimal setup window, allowing the engineers to work with more flexibility in terms of ride height, rake, and aerodynamic balance. This is far from a minor development—it has given Ferrari more room to maneuver and a stronger platform from which to achieve proper car balance across various track conditions. The expectation is that the new rear suspension system will further enhance this progress.
From a practical point of view, the aerodynamic load generated by the car’s underfloor should now be accessible across a broader range of speeds. By reducing the degree of rear-end squat during acceleration, especially when exiting slower corners, Ferrari expects to gain performance in the more technical, twisty sections of the circuit, which are areas that had previously been sacrificed in favor of maximizing performance on the straights. Moreover, the entire upgrade package, consisting of the floor and rear suspension, is anticipated to increase the SF-25’s overall stability, rigidity, and predictability, particularly in Sector 2, which is the most intricate and demanding section of the Belgian circuit.
Setup and tyre management: the decisive variables at Spa-Francorchamps
Of course, it will not be possible to draw definitive conclusions based solely on the performance during the Belgian Grand Prix weekend. As has been frequently emphasized by numerous Formula 1 engineers and analysts, a car’s final race-day performance is always the result of the complex interaction between two primary factors: the mechanical and aerodynamic setup configuration selected and the effectiveness of tyre management across all stints. Due to the demanding layout of Spa-Francorchamps, it is exceedingly rare for any single Formula 1 car to be competitive across all three sectors. Teams typically must choose whether to optimize the first and third sectors or to concentrate their setup efforts entirely on the second, more technical portion of the track.
For this reason, it will be essential to correlate and compare the data gathered in Belgium with those that will be collected at the Hungarian Grand Prix, scheduled to take place just one week later at the Hungaroring circuit in Budapest. The two events present radically different challenges. In addition to the distinct circuit characteristics, the weather conditions will vary greatly—from the cool, damp, and often unpredictable microclimate of the Ardennes forest to the dry, high-temperature environment of Hungary in late summer. It is already known that Ferrari has developed several base setup configurations using simulator data collected from Mugello, preparing for both the Belgian and Hungarian Grands Prix in tandem.
There is no doubt that the challenge awaiting the Italian team as well as drivers Lewis Hamilton and Charles Leclerc, is an extremely complex one. Extreme precision in the interpretation of data will be required, along with a meticulous approach to every setup adjustment, aerodynamic configuration, and tyre strategy. Adding further intrigue and difficulty to the weekend are the current weather forecasts for Spa-Francorchamps, which indicate a high probability of rainfall throughout the race weekend. This added meteorological variable could significantly increase the unpredictability of the outcome, potentially offering opportunities for bold strategic moves or exposing setup weaknesses. All of this contributes to making the Belgian Grand Prix another highly anticipated and potentially pivotal event in this Formula 1 season.
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