McLaren has introduced four aerodynamic upgrades for the 2026 Brazilian Grand Prix, becoming the only Formula 1 team to bring new components to Interlagos. The Woking-based outfit has unveiled a redesigned front wing, a new rear wing assembly, an updated beam wing and modifications to the floor, with the front wing concept also expected to form the foundation of its 2027 car.
While Mercedes, Ferrari and Red Bull have retained their existing aerodynamic configurations, McLaren is continuing to develop its MCL40 as it fights to finish as high as possible in the Constructors’ Championship. The decision comes after several difficult race weekends in which Lando Norris and Oscar Piastri have struggled to match the pace of their leading rivals.
The scale of the package is particularly significant at this late stage of the season. McLaren is not simply introducing isolated changes to increase downforce, but attempting to improve the interaction between the car’s major aerodynamic surfaces. The new front wing also establishes a direct connection between the team’s remaining 2026 development programme and its preparations for 2027.
McLaren’s new front wing previews its 2027 F1 car
The most important element of McLaren’s Brazilian Grand Prix upgrade package is the completely redesigned front wing. Developed with a different geometry from the previous specification, the new design aims to improve the quality of the airflow directed towards the floor and bodywork, increasing the overall aerodynamic efficiency of the MCL40.
Rather than focusing exclusively on generating additional front-end downforce, McLaren has sought to change how air travels towards the aerodynamic surfaces further along the car. This approach is particularly important because the front wing influences the airflow reaching several other components, including the underfloor.
The redesign involves multiple elements of the front wing assembly. McLaren has revised the outer section where the wing connects to the endplate, adjusted the height of the flaps and changed the attachment point between the nose and the wing structure.
One of the most noticeable modifications concerns the nose attachment, which has been moved from the mainplane to the second wing element. The outer geometry has also been reorganised to improve control of the airflow travelling around the front wheels and towards the lower section of the car.
The objective is to achieve more effective and predictable aerodynamic behaviour by refining one of the areas that most strongly influences underfloor performance. On ground-effect Formula 1 cars, the quality of the airflow reaching the underbody plays a fundamental role in generating downforce.
The development also has longer-term implications. McLaren intends to use this new front wing concept as the starting point for its 2027 challenger, meaning the Brazilian Grand Prix provides an opportunity to evaluate an important part of next season’s aerodynamic philosophy under racing conditions.
New McLaren rear wing and beam wing target efficient downforce
The second major area of development concerns the rear of the MCL40. McLaren has introduced an entirely new rear wing assembly specifically designed to generate additional aerodynamic load efficiently across different operating conditions.
This approach is particularly relevant at Interlagos, where the long flat-out section leading into the opening corner demands good straight-line speed. At the same time, the slower and more technical middle sector rewards cars capable of generating substantial downforce.
Finding the correct compromise between aerodynamic load and drag is therefore essential. The circuit’s elevation changes add another challenge, particularly through corners where rear-end stability determines how early a driver can apply the throttle.
However, the rear wing does not operate independently. McLaren has also introduced a redesigned beam wing, developed specifically to improve its aerodynamic interaction with the upper rear wing assembly.
Positioned in the lower section of the rear of the car, the beam wing helps manage airflow arriving from the central and lower areas of the chassis. Its behaviour influences the performance of the wider rear aerodynamic system.
By revising both elements together, McLaren aims to improve the distribution of aerodynamic load and the quality of the airflow without introducing excessive drag. This coordinated development is particularly important for a team that has struggled to maintain consistent balance across different types of corners in recent races.
Those difficulties have contributed to the performance problems experienced by Lando Norris and Oscar Piastri, with McLaren seeking solutions that improve the MCL40’s competitiveness across a wider range of circuit characteristics.
McLaren modifies MCL40 floor to improve ground-effect efficiency
The fourth update in McLaren’s Brazilian Grand Prix package concerns the aerodynamic elements surrounding the floor. Unlike the more substantial modifications to the front and rear wings, this development represents a relatively small adjustment to the existing design.
McLaren has revised several aerodynamic profiles responsible for controlling airflow, aiming to improve the performance of the underfloor. The changes refine the existing geometry rather than introducing a completely new floor assembly.
This distinction is important because the development focuses on how air is directed and managed in particularly sensitive areas of the car. By making relatively localised modifications, McLaren hopes to achieve an aerodynamic improvement without requiring an extensive redesign of the entire floor.
Combined with the new front wing, the changes could improve the floor’s effectiveness across different ride heights and setup configurations. The objective is to make the aerodynamic platform more consistent as the car responds to varying conditions around the circuit.
Rather than concentrating on a single isolated component, McLaren is therefore working to improve how the MCL40’s principal aerodynamic surfaces function together.
McLaren continues development as Ferrari, Mercedes and Red Bull bring no upgrades
McLaren’s decision to introduce four updates at Interlagos stands out because none of its main rivals has declared new aerodynamic components for the Brazilian Grand Prix. Mercedes, Ferrari and Red Bull have all chosen to retain their existing specifications, leaving the Woking team alone in bringing a fresh development package.
The move reflects McLaren’s determination to recover competitiveness after a difficult sequence of races. The team’s recent decline in results and its increasingly difficult battle with Red Bull have added importance to the remaining rounds of the championship.
Interlagos provides a demanding environment in which to assess the new components, particularly given the combination of fast sections, technical corners and changes in elevation. The circuit also presents tyre-management challenges and the possibility of heavy rain, which could complicate the evaluation of the updates.
For McLaren, the objective is to improve performance during the final races of 2026 while gathering useful information for its next Formula 1 car. The redesigned front wing is especially significant in that respect, linking the team’s immediate efforts to recover ground with the aerodynamic direction it plans to pursue in 2027.
Whether the four-part package delivers a meaningful improvement on track remains to be seen, but McLaren has made its intentions clear: development of the MCL40 is continuing, even as the current season approaches its conclusion.
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