The Pirelli test sessions at the Circuit de Barcelona-Catalunya proved to be an important opportunity for Ferrari, extending well beyond the development of the 2027 tires. While the primary objective of the program was to assist the Italian tire manufacturer in evaluating future compounds and constructions, the Maranello team also took advantage of the track time to continue assessing its own technical developments. Ferrari maximized the available mileage to gather valuable information on the latest SF-26 upgrade package, further validating the effectiveness of the new front wing and several other recently introduced components.
The additional data collected during the two-day program could prove extremely useful ahead of the upcoming Austrian Grand Prix at Spielberg. With only a short break between races, every kilometer completed on track becomes increasingly valuable, especially when teams are attempting to refine new aerodynamic and mechanical solutions. For Ferrari, the Barcelona test represented a rare opportunity to continue learning about its upgraded package outside of a traditional race weekend environment.
Pirelli tests: Ferrari, Aston Martin and Cadillac on track at Barcelona
The opening day of Pirelli’s Barcelona test program, dedicated to developing next season’s dry-weather tires, featured Ferrari, Aston Martin and Cadillac on track. The morning schedule focused on evaluating different structural options for the C2 compound through a series of eight-lap short runs. These tests were designed to provide engineers with a clearer understanding of how the future tires react under various load conditions and operating windows.
During the afternoon, the teams concentrated on testing the most promising solutions over longer distances. Long-run simulations are particularly important because they allow engineers to evaluate tire degradation, thermal behavior and consistency across an extended stint. The entire session took place in very hot conditions, with air temperatures reaching 34°C and track temperatures climbing to 57°C, creating a demanding environment for both drivers and engineers.
For Ferrari, Charles Leclerc led the work program, completing 134 laps, equivalent to 624 kilometers, and setting the fastest time of the day with a lap of 1:16.619. Although outright lap times were not the primary focus of the session, the Monegasque driver completed a highly productive day behind the wheel, helping Ferrari and Pirelli collect a significant amount of information. Such extensive mileage is often as valuable as an entire race weekend in terms of technical feedback.
Aston Martin’s Jak Crawford also completed an extensive workload, covering 146 laps, or 680 kilometers, and posting a best time of 1:23.709. The young American driver was able to contribute substantially to the tire development program while gaining additional experience in Formula 1 machinery.
Cadillac, meanwhile, encountered a few technical issues that limited Zhou Guanyu to 54 laps, totaling 251 kilometers, with a fastest lap of 1:21.543. The setbacks reduced the amount of data available to the American team, although valuable information was still gathered. The program was then scheduled to continue the following day with only Ferrari and Cadillac remaining on track.
Pirelli tests continue with Ferrari and Cadillac at Montmeló
The second and final day of Pirelli’s Barcelona test, focused on developing next year’s slick tires, concluded with Ferrari and Cadillac carrying out the running. As planned, Arthur Leclerc took over from his brother Charles Leclerc for the Maranello team, while Zhou Guanyu continued his work for the American outfit.
In the morning, the teams resumed their study of the C2 tire structures through a combination of short and long runs. Engineers continued comparing different construction solutions and collecting data under varying fuel loads and track conditions. Following the lunch break, the focus shifted to evaluating several variations of the C2 compound exclusively over long-distance stints. This phase of the program was particularly important because it allowed Pirelli to gather information regarding wear characteristics and overall performance consistency.
Temperatures were even higher than on the opening day, with the air reaching 36°C and the track surface climbing to 58°C. Such extreme conditions placed considerable stress on both the tires and the cars, making the collected information even more valuable from a development standpoint.
Arthur Leclerc completed an impressive workload, finishing 141 laps, equivalent to 657 kilometers, and recording the fastest time of the session with a 1:17.430 lap. His performance demonstrated strong consistency throughout the day, enabling Ferrari to complete virtually its entire planned testing schedule. The young Monegasque driver spent many hours gathering information that could prove beneficial for both Ferrari and Pirelli.
Zhou Guanyu also enjoyed a much smoother day compared to the previous session, completing 130 laps, or 605 kilometers, with a best time of 1:19.321. The significantly increased mileage represented a major improvement for Cadillac, allowing the team to recover much of the track time lost during the opening day.
The Barcelona test concluded with a combined total of 605 laps and 2,817 kilometers completed. Considering the demanding weather conditions and the complexity of the testing program, the overall outcome can be considered highly productive for all parties involved.
That figure includes both test days and the contribution made by Aston Martin during the opening session. The next stage of Pirelli’s dry-weather tire development program is scheduled for Silverstone on the Tuesday and Wednesday following the British Grand Prix, where Mercedes and Williams will take part in the testing. Those sessions will provide another important opportunity to refine the specifications of the tires that may eventually be used in future Formula 1 seasons.
Ferrari uses Pirelli tests to further evaluate its new upgrade package
The most interesting aspect of the two-day test, however, concerns Ferrari. As is well known, the tires used during these sessions are not the official race compounds. Instead, they are experimental tires designed for future seasons and are often significantly different from those currently used in Formula 1 competition.
Nevertheless, the extensive preparation and technical sophistication of a Formula 1 team allow engineers to conduct valuable comparative tests and gather additional data on a newly introduced upgrade package. Even when tire characteristics differ from race conditions, teams can still analyze numerous aspects of vehicle behavior, including aerodynamic balance, mechanical responses and setup sensitivity.
The Ferrari on track was the same specification equipped with the eight upgrades that debuted at the Barcelona Grand Prix. It was therefore no coincidence that one of the team’s race drivers took part in the first day of testing. Charles Leclerc not only contributed to Pirelli’s development work but also carried out valuable testing for Ferrari, helping the team collect a significant amount of additional information.
The extra mileage accumulated by Charles Leclerc offered Ferrari engineers another opportunity to compare trackside observations with simulator predictions. Modern Formula 1 development relies heavily on the correlation between virtual tools and real-world data, making every additional lap particularly valuable.
One of the key areas of analysis concerns the front wing, which underwent several modifications to bring Ferrari into closer alignment with its main rivals at the front of the grid. The front wing remains one of the most influential aerodynamic components on a Formula 1 car because it determines airflow management across the entire vehicle.
While the tire characteristics differ from race conditions, studying the car’s behavior through setup changes remains highly valuable. Engineers can evaluate how the upgraded package responds to different ride heights, balance adjustments and aerodynamic configurations. The information gathered can then be cross-referenced with simulator data to provide engineers with a more complete understanding of the package. The same principle also applies to the car’s mechanical setup, where suspension behavior and overall balance can be further refined.
For Ferrari, these additional insights are especially important because the SF-26 appears to be entering a crucial phase of its development cycle. Following the introduction of the eight-component upgrade package in Barcelona, the team is eager to determine whether the gains observed during race weekend conditions can be consistently replicated at different circuits and under different operating conditions.
In exactly one week, the Formula 1 season resumes with the Austrian Grand Prix, a circuit that is very different from Barcelona. Whereas the Spanish venue is traditionally regarded as one of the most complete tests of aerodynamic efficiency, the Red Bull Ring presents a very different challenge with its heavy acceleration zones, significant elevation changes and strong emphasis on power unit performance.
The Red Bull Ring will therefore provide another important test for Ferrari’s latest upgrades, as well as for the possible introduction of the first power unit update of the season. Engineers will be closely monitoring how the SF-26 performs on a layout that places different demands on the car compared to Barcelona.
The event should offer a clearer picture of whether the SF-26 can remain competitive on a power-sensitive circuit and challenge Mercedes while fighting at the front among the hills of Spielberg. If the positive signs seen in recent weeks continue, Ferrari could arrive in Austria with growing confidence and with a stronger understanding of how its latest development package performs across a wider range of conditions. The data gathered during the Barcelona Pirelli tests may therefore prove to be considerably more valuable than a standard tire-development exercise, potentially providing Ferrari with useful answers ahead of the next crucial phase of the Formula 1 season.
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