The British Grand Prix saw several teams introduce upgraded components, albeit none of them brought a major upgrade package for the Silverstone round. F1Technical's senior writer Balazs Szabo delivers his latest analysis.

Ferrari

Ferrari has continued its steady development push into the heart of the 2026 Formula 1 season with another targeted aerodynamic and thermal efficiency upgrade, this time focused on the rear corner of the SF-26 ahead of the British Grand Prix at Silverstone.

Following a significant upgrade package introduced at the Barcelona-Catalunya Grand Prix and a revised front wing arriving in Austria, this latest change continues Ferrari’s trend of refining specific performance zones rather than relying on a single large-step update.

The new rear corner package is designed with two clear objectives: improving local cooling performance and increasing aerodynamic efficiency.

At the centre of the update are revised brake cooling inlets and outlets. These have been increased and reshaped to improve airflow management through the rear braking system.

Better airflow through this region helps stabilise brake temperatures, although it is interesting that Ferrari brought the upgrade to a circuit where drivers usually hardly touch the brakes for most of the laps.

However, Ferrari’s development does not stop at thermal management. The revised geometry is also intended to reduce aerodynamic disruption caused by cooling airflow. By optimising how air enters and exits the brake duct area, engineers can minimise drag and keep the flow cleaner as it moves toward the rear of the car.

Alongside the cooling changes, Ferrari has introduced a redesigned lower deflector in the rear corner. This component plays a crucial role in controlling airflow around the tyre wake — one of the most turbulent regions of a modern F1 car.

By reshaping the deflector and adjusting its interaction with the surrounding bodywork, Ferrari aims to improve local downforce generation while also managing how airflow is guided toward the diffuser. Even small gains here can translate into better stability in medium and high-speed corners, something particularly valuable at Silverstone’s flowing layout.

The update is completed by a re-optimised rearward winglet cluster. These small aerodynamic elements work collectively to condition airflow and enhance the efficiency of downstream aero surfaces. Ferrari’s revised arrangement suggests a focus on extracting more performance from existing flow structures rather than dramatically altering the overall concept.

Williams

Williams has introduced a new front wing package at the British Grand Prix as part of its ongoing effort to recover performance after a challenging run of recent races.

The British outfit have endured a tough start to the season, having been unable to fight for top ten positions. In fact, the Grove based outfit has even found it difficult to escape Q1 in most qualifying sessions, despite benefiting from Mercedes’ field leading power unit.

The British team is expected to introduce a comprehensive upgrade package later in the season, but its home race at Silverstone saw the debut of a new front wing.

The upgrade is centred on a revised front wing geometry, featuring updated profiles and redesigned endplate surfaces, with the aim of improving both local aerodynamic load and the quality of airflow delivered to the rest of the car.

The team’s description highlights a dual objective: generating more local downforce at the front axle while also improving how the front wing interacts with downstream aerodynamic components.

In modern Formula 1 design, the front wing is not just a source of front-end grip, but a critical airflow management tool that shapes the performance of the entire car. Even small changes in wing profile or endplate design can significantly influence how air is guided around the front tyres and channelled towards the floor, sidepods, and rear aerodynamic structures.

Williams’ updated design focuses on refining this airflow structure. By altering the wing’s geometry and endplate surfaces, the team is aiming to create a more efficient and better-organised flow field as the air leaves the front of the car.

This improved conditioning is expected to enhance the performance of downstream components, particularly the floor, which is heavily dependent on clean, well-directed airflow to generate consistent downforce under the current ground-effect regulations.

At the same time, the revised front wing is intended to increase local loading, meaning the front axle should benefit from improved aerodynamic grip.

This can help improve turn-in response and overall balance, especially in medium and high-speed corners where front-end confidence is crucial.

McLaren

McLaren Racing has arrived at the British Grand Prix with a focused development package aimed at improving both local aerodynamic efficiency and overall flow conditioning on its 2026 Formula 1 car.

Rather than a large visual overhaul, the Woking-based team has opted for two targeted upgrades that refine how air is managed at both the front of the car and under the floor, two of the most critical performance areas in modern Formula 1 design.

The first change is a revised front brake duct assembly, introduced with the goal of improving flow conditioning around the front corner of the car.

While brake ducts are primarily responsible for cooling, in current ground-effect regulations they also play a significant aerodynamic role. By reshaping this area, McLaren is aiming to better control the airflow that passes around the front wheel and into the car’s downstream surfaces.

The result is expected to be a more efficient airflow structure, which can translate into a small but meaningful increase in aerodynamic load and improved overall balance through corner entry.

The second upgrade focuses on the floor, where McLaren has revised the floor board and several elements of the floor “furniture” — the detailed aerodynamic structures that help guide and energise airflow beneath the car.

By refining these elements, McLaren is aiming to improve the quality of the airflow underneath the car, enhancing flow stability and increasing overall aerodynamic efficiency. This should help the car generate more consistent downforce while also improving how the floor responds across different speeds and ride heights.

Haas

Having refufused to bring many upgrades across the opening races of the season, Haas has brought a notable aerodynamic update to its rear wing package for this weekend's British Grand Prix, focusing on both increased local load and improved airflow conditioning through refinements to key rear aerodynamic surfaces.

The changes centre on a comprehensively revised rear wing profile alongside a redesigned endplate structure featuring new external protrusions intended to enhance flow behaviour around the rear of the car.

The first element of the upgrade is a new rear wing profile, where the team has reworked the geometry of the wing and its flap configuration. The emphasis has been placed on optimising flap shapes to extract more performance across a wider range of operating conditions.

In practical terms, this means the rear wing is expected to generate more aerodynamic load while maintaining efficiency, rather than simply increasing drag for downforce. In the current power unit era, achieving that balance is critical, as teams constantly try to maximise cornering performance without compromising straight-line speed.

Alongside the profile changes, Haas has also refined the rear wing endplates, introducing localized external protrusions designed to influence airflow structures at the extremities of the wing.

These subtle surface features are intended to promote upwash, helping to better manage the airflow as it detaches from the wing and interacts with the wake behind the car. By improving this flow conditioning effect, the team aims to increase the overall aerodynamic load generated by the rear wing assembly while also improving stability in how the airflow is shed downstream.

Taken together, these upgrades reflect a targeted approach to improving rear-end performance by working on both the core lifting surface and the flow structures that support it. The revised wing profiles provide the primary increase in downforce, while the endplate modifications help ensure that the airflow remains as controlled and efficient as possible as it leaves the car.

Red Bull

Red Bull Racing has continued its steady development programme for its 2026 Formula 1 car with another targeted aerodynamic update, this time focusing on the rear wheel bodywork area.

The latest change centres on the cascade winglets located inboard of the rear rims, a highly sensitive part of the car’s aerodynamic structure that plays a key role in managing airflow disturbed by the rotating rear tyres.

This update comes shortly after the team introduced a broader package at the Red Bull Ring, reinforcing the impression that Red Bull is continuing to refine its design in small, precise steps rather than relying solely on large, infrequent upgrades.

The newest revision specifically alters the geometry and element count of the cascade winglets, a detail that may appear minor on paper but can have meaningful consequences for how airflow is conditioned around the rear of the car.

In modern Formula 1 design, the airflow around the rear wheels is one of the most aerodynamically disruptive regions on the entire car. The turbulence generated there can easily degrade the efficiency of downstream components such as the diffuser and rear wing, while also affecting stability through fast corners and during throttle application on exit.

The team’s description of the change highlights two main objectives. One is the improvement of local aerodynamic load in the rear wheel region, achieved through adjustments to how the winglets are arranged and how many elements are used.

Even small changes in this area can influence the pressure distribution around the tyre and contribute to additional grip, particularly in medium-speed corners where balance and rotation are critical.

The second objective is improved flow stability, ensuring that the airflow leaving the rear wheel area remains more consistent and less sensitive to changes in steering angle or yaw. This consistency is important not only for outright performance but also for stability through a variety of corners.