New floor for McLaren

McLaren have arrived at Silverstone with upgrades to their floor body. The team say it has been completely revised to result in improved flow conditioning plus a redistribution of suction; bringing overall aerodynamic performance gains.

In addition, they have made a modification to the rear brake duct inlet aimed at overall local flow conditioning improvement and improved brake cooling performance.

Red Bull Racing bring new floor too

Red Bull also have a new floor this weekend, featuring reprofiling of the floor body surfaces and repositioning of the floor fences laterally at the leading edges.

The floor body changes are to improve pressure distribution over the length of the floor, allowing for increased load extraction whilst maintaining flow stability adequately. The team say the floor fence modifications are “subtle” but will better optimise the pressure distributions. This should allow more load to be extracted downstream without sacrificing flow stability.

Aston Martin mark home race with raft of updates

Aston Martin have one of the most comprehensive upgrade suites in the field for their home race, and they haven’t had to travel far with their factory based just over the road from Silverstone circuit. It makes sense for it to be comprehensive as their team principal, Andy Cowell, has said it will be their last of 2025.

The shape of the main floor body has been “evolved slightly”, in the team’s words, the floor fences have revised curvature and local details, and there are also small alterations to the floor edge wing details and the main floor inboard of those – all aimed at improving the flow structures under the floor, increasing local load and improving performance.

There are also changes to the profile of the coke/engine cover that have been developed alongside the floor edge details, again aiding with the floor performance.

Haas search for greater driver confidence

Haas also have a significant upgrade package this weekend, with a main focus on their floor in the search for more consistent aerodynamic behaviour, and thus increased driver confidence.

The expansion rate has been changed on the main floor, the fences have been re-aligned, and there’s a smaller floor edge wing – all changes to the floor geometry to enhance underfloor flow management and increase the ground effect efficiency under laterally loaded conditions – of which there are plenty at Silverstone.

The team hope this will bring improved cornering stability, higher mid-corner speeds, and more consistent aerodynamic behaviour overall to bring the drivers more confidence through sequences like Maggotts and Becketts to Chapel at Silverstone.

Based on the team’s language in this submission to the FIA, it seems these updates could be addressing the flaw of the VF-25 that was exposed right at the start of the season through Albert Park’s high speed turns 9-10 sequence and limited the drivers’ abilities to push to the maximum.

On top of these floor alterations, there is also an updated sidepod inlet geometry and changes around the mirrors to improve local flow alignment and enable cleaner airflow rearwards – improving overall car performance.

New front wing for Racing Bulls

Racing Bulls have a new livery for this weekend, but they’ll also run a new front wing with altered flap geometry. The profiles of the flap elements are smaller which the team say will cater for the low balance requirements at Silverstone, and subsequent events.

Williams opt for new floor fences

Williams have revised their FW47’s floor fence geometry along the leading edge. The team say the “leading edge is located further inboard than the baseline” with the geometry now also having “more 3D curvature” as it blends back into the original fence profile.

The aim of these changes is to find improvements in the overall flow distribution through the fence system, therefore improving the downstream car performance.

Kick Sauber continue upgrade momentum

Sauber have now brought upgrades to three of the last four races, as they look to continue to impressive run of performance they’ve experienced of late.

They arrive in Silverstone with a new floor body, continuing their recent floor development further by modifying the forward floor geometry to gain efficient downforce.

Additionally, they have a new circuit specific front wing featuring a reshaped flap geometry that they hope will provide a more efficient low balance flap option if they choose to run with lower downforce levels this weekend. In other words, it’s a wing aimed at balancing out a lower downforce rear wing, should they opt to run with that configuration.