Ferrari is working against the clock to bring its latest SF-26 aerodynamic upgrades to the 2026 United States Grand Prix, with promising wind tunnel results encouraging the Italian team to accelerate development ahead of the Austin weekend. Lewis Hamilton and Charles Leclerc are set to receive a revised floor at the Circuit of the Americas, although the planned new sidepods could miss the deadline.
The upgrade programme represents an important opportunity for Ferrari to improve its competitiveness during the closing stages of the season. With the United States Grand Prix scheduled for October 23–25, the Maranello engineers are attempting to finalise a package designed to improve aerodynamic efficiency, increase downforce and make the SF-26 more effective across different circuit characteristics.
Austin also marks the beginning of the second of three consecutive triple-headers concluding the 2026 Formula 1 campaign. Ferrari therefore hopes that improvements introduced in Texas will deliver benefits beyond COTA, with the Mexico City and São Paulo Grands Prix following immediately afterwards.
Ferrari SF-26 Austin upgrades receive encouraging wind tunnel results
Under the direction of chassis technical director Loic Serra, Ferrari has been developing revisions to three important aerodynamic areas of the SF-26: the floor, sidepods and radiator intakes. The changes are intended to address performance limitations that have become increasingly apparent as the season has progressed.
According to the Italian edition of Motorsport.com, the team is now accelerating production of its redesigned sidepods in an effort to have them available for the United States Grand Prix. If the components cannot be completed and delivered in time, their introduction would have to wait until the following round in Mexico City.
The revised floor, however, is expected to be available for both Lewis Hamilton and Charles Leclerc in Austin. Wind tunnel evaluations of the floor and sidepod modifications reportedly produced sufficiently encouraging results for the developments to receive approval well ahead of the race weekend, even though manufacturing and delivery remain concerns for the latter component.
Ferrari believes the package could produce a significant performance improvement at COTA. The team is targeting additional downforce without an excessive drag penalty, while also seeking to broaden the SF-26’s operating window so that its aerodynamic performance can be exploited more consistently.
The developments are particularly significant because Ferrari has already devoted considerable engineering resources to the substantially revised SF-27 for the 2027 season. With the current car approaching what the team considers to be its development ceiling, the positive wind tunnel findings have provided a reason to pursue another substantial update before the end of 2026.
Why COTA’s first sector presents a crucial test for Ferrari
The Circuit of the Americas places considerable demands on aerodynamic stability, particularly through the sequence of high-speed direction changes in its opening sector. These corners generate substantial lateral loads, testing both the car’s aerodynamic platform and the ability of its Pirelli tyres to maintain performance.
For Ferrari, the revised floor could prove especially valuable in this section. Greater downforce and a wider operating window would give Hamilton and Leclerc a better opportunity to exploit the SF-26 through the fast corners, where consistent aerodynamic performance is essential.
The challenge will also provide an important comparison with two rival cars that have recently improved. Red Bull’s RB22 has made progress, while Mercedes has introduced further developments to its W17. Ferrari’s performance relative to these machines through COTA’s medium-speed corners will offer another indication of how effectively the latest modifications have addressed the SF-26’s limitations.
There is, however, an important compromise to manage. Increasing aerodynamic load can be beneficial through the corners, but excessive drag would undermine straight-line performance. Ferrari cannot afford to solve one weakness at the expense of another, particularly at a circuit where overtaking opportunities depend heavily on speed along the straights.
Ferrari must balance downforce and drag on Austin’s long straight
COTA’s back straight measures approximately one kilometre and represents the circuit’s principal overtaking opportunity. Any substantial increase in aerodynamic drag could leave Hamilton and Leclerc vulnerable to rivals, even if the revised SF-26 becomes more competitive through the opening sector.
This balance between cornering performance and straight-line efficiency is central to Ferrari’s upgrade objectives. The ideal outcome would be a car capable of generating greater aerodynamic load through demanding sequences without sacrificing the speed needed to attack or defend positions elsewhere around the lap.
Ferrari is also hoping that its latest chassis developments will help compensate for the limited performance improvement obtained from the ADUO2 power unit update introduced at the Italian Grand Prix in Monza. The aerodynamic changes cannot directly alter the engine’s output, but greater overall efficiency could help the team improve the SF-26’s competitiveness despite the disappointing gains from that earlier update.
Austin has provided some encouraging results for Ferrari in recent seasons. Charles Leclerc won the 2024 United States Grand Prix, while the Monegasque finished fourth in 2025, one position ahead of Lewis Hamilton. Nevertheless, the introduction of Formula 1’s new technical regulations for 2026 means that previous performances offer only limited guidance to the demands facing the current car.
How Ferrari’s upgrades could affect Mexico City and São Paulo
The consequences of Ferrari’s aerodynamic decisions will extend beyond the United States Grand Prix. With three races taking place on consecutive weekends, the team must consider how its new components will perform across circuits with different aerodynamic requirements.
Mexico City presents another particularly demanding test of drag efficiency. The Autódromo Hermanos Rodríguez is situated more than 2,200 metres above sea level and features a main straight measuring approximately 1.2 kilometres, which serves as the principal overtaking zone.
Should the upgraded SF-26 generate excessive drag, Hamilton and Leclerc could face another disadvantage in Mexico, where maintaining competitive straight-line performance remains important. This makes the aerodynamic efficiency of the revised floor and sidepods a major consideration as Ferrari prepares the package.
The situation could be more favourable at Interlagos, the venue for the São Paulo Grand Prix. Ferrari would potentially be better placed to accommodate additional drag there, provided that the modifications deliver a meaningful increase in downforce. Compared with Austin and Mexico City, the Brazilian circuit is expected to be less punishing for a car carrying a greater aerodynamic drag penalty.
Ferrari’s immediate priority is therefore to ensure that the revised floor reaches both drivers in Austin and, if possible, complete the upgraded sidepods before the race weekend begins. The encouraging wind tunnel results have raised expectations for the final major developments of the SF-26, but their effectiveness will ultimately depend on whether the team can translate those findings into improved performance on track.
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