Ferrari concludes testing at Mugello with key SF-25 upgrade: here is everything that happened on track. Ferrari completed two days of testing at Mugello with Charles Leclerc and Lewis Hamilton.

Ferrari has officially concluded two days of testing at the Mugello Circuit, focusing on both the 2023 and 2025 Formula 1 cars. Let us take a closer look at the complete on-track program carried out by the Maranello-based team across the two sessions held in Tuscany.

The Scuderia Ferrari Formula 1 team conducted an intensive two-day test at the Mugello track. The Italian team brought two cars: the SF-23 for routine Testing of Previous Cars (TPC) sessions, and more importantly, the updated SF-25 equipped with a brand-new suspension system. This new suspension will be introduced in the upcoming rounds of the 2025 FIA Formula One World Championship. The test had a clear development objective, and all activities on track were aimed at gathering data for the new technical package.

The work carried out by the Scuderia’s engineers and drivers during these test days was fundamental from a development perspective. The timing of this filming day was far from random—it aligns with Ferrari’s plan to introduce a major aerodynamic and mechanical upgrade package at the Belgian Grand Prix weekend at Spa-Francorchamps. This will be the final significant update of the 2025 season, and it is aimed at solving the persistent issues the SF-25 has encountered, particularly related to ride height management and ground clearance inconsistencies.

Debut of the new suspension system
The most crucial part of the Mugello test program took place on Thursday. The revised SF-25, featuring the new front and rear suspension elements, was tested by both main race drivers—Charles Leclerc and Lewis Hamilton. The primary objective was to collect as much telemetry and aerodynamic correlation data as possible on the newly designed suspension system. As dictated by the regulations governing filming days, the two drivers were limited to a total of 200 kilometers on track.

In the morning session, Monegasque driver Charles Leclerc took to the circuit first, marking the official track debut of the updated version of the SF-25. His testing program consisted of multiple short stints, during which he gathered vital feedback for the technical team. In between Leclerc’s runs, Italian reserve driver Antonio Giovinazzi also completed several laps using the older SF-23 car, continuing the parallel testing work with last season’s chassis.

Following Charles Leclerc’s outing, seven-time world champion Lewis Hamilton took over the steering wheel of the SF-25. He completed nearly 20 laps during the afternoon session. According to on-site reports, Leclerc focused on shorter runs for quick feedback collection, while his Maranello teammate was tasked with longer stints to simulate more sustained running and evaluate the car’s behavior over an extended distance.

The testing took place under extremely hot conditions, which, combined with the fast and flowing Mugello layout, helped stress-test the mechanical grip and overall aerodynamic stability of the updated car. These harsh conditions offered valuable insights into how the new suspension package performs in extreme scenarios.

First day of testing on track
The Ferrari testing program officially began on Wednesday with a focus on Testing of Previous Cars (TPC). These sessions were primarily reserved for the team’s test and reserve drivers, who took to the track using the 2023-spec SF-23 car. Chinese Formula 1 driver Guanyu Zhou drove in the early session, while later in the day, Italian test driver Antonio Fuoco took over for additional data-gathering runs.

However, the first day was not entirely limited to the older car. Ferrari also allocated a short session to the current SF-25, albeit with its standard configuration. Antonio Giovinazzi completed a brief 15-kilometer shakedown in the 2025-spec car, but the revised rear suspension was not yet installed at that time. This run served primarily as a baseline comparison, allowing engineers to gather reference data before testing the upgraded suspension system the following day.

Through this dual-car, multi-driver approach, Scuderia Ferrari aimed to maximize data collection and validate the effectiveness of the new components ahead of their potential introduction in upcoming Formula 1 races.