Mercedes' F1 rivals have brought a series of upgrades to the United States Grand Prix as the development battle intensifies at the Circuit of the Americas.
McLaren, Ferrari and Red Bull have all introduced new components for the Austin weekend, while Mercedes has elected against bringing further updates.
Instead, the Brackley-based squad will focus on extracting the maximum performance from the upgrade package introduced two rounds ago at the Bahrain Grand Prix in Malaysia, which has proven troublesome thus far.
According to the FIA's official car presentation submissions, Ferrari has delivered the most extensive package of the leading four teams, targeting improvements to the floor, sidepods and diffuser.
The Scuderia has revised its floor body and floor board, including the front floor's leading edge and supporting elements, to increase downforce at both ends of the car while improving airflow towards the rear.
Its revised sidepod inlet, undercut and coke-line geometry complement an updated diffuser, designed to generate additional aerodynamic load more efficiently.
McLaren has introduced three updates, comprising revised front and rear corner assemblies and a modified diffuser.
The front corner changes work alongside the suspension fairings to improve airflow, while the rear corner revisions target increased local load. The new diffuser geometry is intended to improve aerodynamic performance across the speed range.
Red Bull, meanwhile, has made two changes, including an additional vane on the front-wing endplate footplate.
The optional component allows tyre surface temperature measurements while offering increased local aerodynamic load.
A revised elastomeric gaiter profile at the front corner is also aimed at improving reliability by reducing the risk of material tearing under steering loads.
[Article continues below]
United States GP
Racing Bulls lead midfield upgrade push
Racing Bulls has submitted four updates for Austin, targeting its front wing, rear wing, floor and engine cover.
A redesigned front-wing endplate improves airflow around the front tyres, while revised rear-wing flaps aim to generate additional load.
Changes to the floor's leading-edge devices, board and edge seek more efficient downforce, supported by a reprofiled engine-cover shoulder and undercut.
Audi has brought three updates, including a new front brake duct designed to improve cooling and aerodynamic performance.
A revised front floor board and mirror stay complete its package, both intended to improve airflow around the car.
Alpine has redesigned its rear floor corner to increase local load and improve airflow interaction with the rear corner.
It has also reprofiled the second and third rear-wing flap elements to improve airflow quality and overall aerodynamic load.
Cadillac has introduced revised forward floor fences to improve airflow towards the rear and reduce sensitivity to changes in car attitude.
Updated sidepod cooling louvres are also intended to increase power-unit cooling capacity while limiting aerodynamic losses.
Williams, Aston Martin and Haas have submitted no updates for the United States Grand Prix.
Most read
In this article
Never miss a thing from the Formula 1 season! Add the 2026 F1 schedule to your calendar at the touch of a button. Subscribe below and put the dates and times of every race directly on your PC or smartphone, so you don't miss a second from the new season.
Download the F1 calendar Download the F1 calendar
A variant with just the race and qualifying is also available.
Click here to download it..
Join the conversation!