Technical updates: 2025 Belgian Grand Prix

Eight of the 10 Formula 1 teams have brought new parts to the Belgian Grand Prix despite the challenge of a Sprint weekend limiting their practice time.

Only Haas and Sauber have opted against introducing upgrades at Spa-Francorchamps, as the rest of the grid have taken advantage of the three-week gap between races to bring developments to their cars. They will all have just one hour of practice on Friday before Sprint qualifying in order to gather data and understand the impact of any changes.

While McLaren has a low-downforce rear wing that it says will improve efficiency over a number of upcoming circuits, it is Ferrari – where there is also a lower-downforce rear wing available – that is drawing more focus as it brings a new rear suspension. The team says it has revised the rear suspension geometry, and in turn that has “triggered a re-optimization of wishbone fairings as well as lower and upper winglet cascades, with the aim to maximize aerodynamic efficiency.”

Red Bull has brought a number of new components, with a new front wing featuring updated first and second elements. The team says this changes the pressure distribution across that area of the car, increasing overall load. There is also more camber on the rear wheel bodywork lower cascade wing assembly, providing an increase in downforce, too.

As well as those items, a new sidepod inlet has been developed to improve cooling at upcoming tracks, leading to associated changes to the engine cover, front suspension fairings and rear suspension shrouds.

Red Brings a new front win and revised sidepod inlet. Rudy Carezzevoli/Getty Images

Mercedes has two small updates, with a tweak to the second element of its front wing and an amendment to the drum lip on its rear corner, both designed to improve tire wake control.

There’s another upgrade package at Aston Martin, focusing on the front end of the car. The team says a new nose and front wing assembly is designed to generate improved performance through the operating range of the car, while there is also a balance range tweak to the front wing flap, and lower-downforce rear wing and beam wing options.

Alpine similarly has the track-specific changes to its rear wing and beam wing, as does Racing Bulls, where there is also a new diffuser and rear brake duct winglets in order to improve the flow conditioning around the rear of the car.

At Williams, a new floor has been introduced, with new floor fences and a revised floor edge. In tandem, these improve the front floor load, but also improve potential performance downstream and benefit the airflow into the diffuser. Further associated changes have been made to the sidepod – improving flow energy to the rear of the car – and the engine cover, with the latter featuring a deeper undercut to the bodywork, improving local floor load.