Technical updates: 2025 British Grand Prix

McLaren has a new floor at the British Grand Prix as it looks to extend its advantage at the front of the field.

Fresh from a front end update that helped the team secure a one-two finish in Austria last weekend, McLaren has worked on the biggest performance differentiator on the current regulations of car, with an entirely new part, saying “the complete floor has been revised resulting in improved flow conditioning and a redistribution of suction to gain overall aerodynamic performance.”

There is also a change to the rear brake duct inlet at McLaren, as it aims to improve flow conditioning that should have an impact on aerodynamic and brake cooling performance.

Red Bull had also addressed its floor at the last race in Austria, and has a further update to it this weekend, with the floor body seeing revised surfaces “to improve pressure distribution over the length of the floor allowing more load to be extracted while maintaining adequate flow stability.” There are also changes to the floor fences, and while those are deemed to be more subtle they are designed to allow more load to be extracted without harming flow stability further back on the car.

A relatively significant package has been introduced by Aston Martin, with the floor also the focal point. There has been a slight update to the floor body shape, plus tweaks to the floor fences and floor edge, with the team saying the revised surfaces “improve the flow structures under the floor increasing the local load on the lower surface and hence improving performance.” An update to the profile of the engine cover bodywork has been introduced at the same time to complement the floor changes.

Haas takes a similar approach to Aston Martin, upgrading its floor with modifications to the floor body, floor fences and floor edge. The team says this update enhances underfloor flow management, increasing ground effect efficiency during lateral load conditions.

“This results in improved cornering stability, higher mid-corner speeds, and greater driver confidence through more consistent aerodynamic behavior,” Haas says.

A new sidepod inlet is also being used by Haas, with an associated tweak to the rear view mirrors part of a package that will enable cleaner airflow delivery to the rear of the car.

Racing Bulls has a minor change to its front wing, with smaller profiles to the flap elements catering for the lower balance requirements at the high-speed Silverstone circuit, while Williams has updated its floor fences to improve downstream car performance.

One of the teams to deliver the most notable gains from new parts in recent weeks is Sauber, which has continued to work on its floor developments, bringing an upgrade that is described as forward floor geometry modifications that will help the team gain some efficient downforce. There’s also a front wing update at Sauber similar to the one at Racing Bulls for balance purposes.