Williams pushes development, updates from Miami to Monza to catch Red Bull
According to reports from Marca.com, Williams is currently validating an ambitious upgrade plan that will begin at the Miami Grand Prix (scheduled for May 1–3) and continue through to the Italian Grand Prix at Monza (September 4–6). The goal is to significantly increase the car’s performance potential and allow the team to consistently fight for points once again.
The most concerning issue identified on the car that debuted during pre-season testing in Bahrain and competed in the opening three rounds of the 2026 Formula 1 championship is weight. Early upgrades, which Marca.com reports could already be introduced in Miami, are expected to include a new chassis and an aerodynamic package specifically designed to reduce mass.
From Miami, a new season begins for Williams
The FW48 will undergo a series of changes, some of which will be visually noticeable while others will remain hidden beneath the surface. It is estimated that between Miami and Monza—a period of roughly four months—the car could gain up to one second per lap purely from weight reduction alone. A performance step that could even allow Williams to close in on Red Bull.
With Mercedes power under the engine cover, the car is widely considered one of the most promising in terms of development potential. However, early-season delays have already had a significant impact on performance. It is important to remember that the Grove-based team did not take part in the collective testing sessions organised by the teams in Barcelona in January, which set them back compared to their rivals.
As a result, Williams is expected to arrive in Miami with a new chassis, a revised floor, and significantly redesigned sidepods compared to those seen in the first part of the season. While competitors will also bring upgrades, James Vowles’ team has already demonstrated in recent years that it can deliver well-targeted developments that often produce strong performance gains.
The Miami weekend will effectively mark a reset point for Williams’ season. With a long gap since the Japanese Grand Prix, surprises are expected across the grid—and Williams could potentially be one of the teams to benefit most from this development window.
The ambitious roadmap laid out by Williams highlights the team’s determination to overcome its early-season weight hurdles and capitalize on the potent Mercedes power unit. If James Vowles and his technical team can successfully deliver this projected one-second gain, the battle for the midfield—and potentially the positions currently held by Red Bull—could look very different by the time the paddock reaches Monza.
With such a significant weight-saving program on the horizon, do you think Williams can successfully bridge the gap to the top five before the European season concludes?
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