Last Updated on January 26 2026, 11:05 am

Williams’ absence from the first pre-season test in Barcelona is more than just an inconvenience. It is a significant setback for the team, and above all for Carlos Sainz, who joined the project believing that 2026 would be a genuine turning point. Missing an entire test block is never easy to justify, but this feels particularly unfortunate given that Williams effectively sacrificed much of its 2025 campaign in order to focus its resources on the FW48 and the new regulations.

Only weeks ago, the outlook appeared encouraging. The team unveiled a special FW48 livery for Barcelona and showcased the first start-up of its new Mercedes power unit. On the surface, everything suggested that Williams was moving in the right direction. This sudden setback is therefore even harder to digest, especially for a team that, at least on paper, began work on the 2026 car earlier than many of its rivals.

 

 

Structural issues behind the scenes

The reasons for the delay run deeper than a single missed deadline. Team principal James Vowles has acknowledged that the team continues to struggle with its internal tools and processes. These shortcomings, which are rooted in long-standing organisational and cultural issues, slow down production and reduce the team’s ability to react quickly when problems arise.

Consequently, the FW48 cannot yet be considered a finished product. In an era where development cycles are compressed to an extreme degree, any inefficiency is amplified. What might once have been a manageable delay can now lead to missed tests, lost data and mounting pressure on everyone involved.

 

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Crash tests and the cost of being late

One concrete issue appears to be safety homologation. It is believed that the FW48 failed the FIA’s frontal crash test, or at least did not pass it cleanly. This is not unusual, many teams fail crash tests, especially under radically new regulations, but timing is everything. Attempting to clear homologation while already behind schedule dramatically increases the risk of failure.

Resolving a crash-test issue is never quick. It requires the affected structure to be redesigned, new components to be manufactured, and the car to be resubmitted for approval. For Williams, who are already short on time, this has compounded existing delays and directly contributed to the decision to skip Barcelona.

 

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A worrying weight problem – +30kg overweight

Perhaps more concerning than the missed test is the FW48’s weight. The car reportedly exceeds the 698-kilogram minimum set by the 2026 regulations by a considerable margin. While several teams are expected to start the season overweight, Williams appears to be among the worst affected.

Reports today suggest that the FW48 is anything up to 30kg overweight.

This is particularly troubling, given the strategic sacrifices made in 2025. The FW47 was effectively abandoned early on, with the team knowingly forfeiting points and competitiveness in the hope that focusing entirely on the 2026 model would deliver significant improvements. Arriving at the first test with an overweight car that cannot even be run represents the opposite of that ambition.

Reducing weight is also one of the most difficult problems to solve. Unlike setup or software issues, shedding kilos often takes months, not weeks, and usually involves painful compromises.

 

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Why missing Barcelona still matters

Barcelona is not just about lap time. The focus is on understanding new energy management systems, validating automated procedures and learning how to efficiently extract and deploy electrical energy. For a car built around entirely new regulations, this learning phase is critical.

Missing this test means that Williams must compress much of that work into Bahrain. Although Mercedes can support the team with power unit data, simulation can only go so far; there is no true substitute for track time. Both Sainz and Alex Albon will have less time to adapt, experiment and build confidence before the season begins.

 

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Echoes of the past, pressure for the future

Williams has been here before. The disastrous test delays in 2019 preceded one of the worst seasons in the team’s history, and the scars from that period still linger. However, Williams has also shown that recovery is possible, as demonstrated by the progress made between recent car generations.

The difference now is expectation. New ownership, new management and a strengthened driver line-up were supposed to signal a clean break from the past. However, the troubled winter of the FW48 suggests that the transformation is not yet complete.

With a fresh set of regulations, there are opportunities for rapid progress. However, the combination of lost test time and excess weight makes Williams’ task significantly harder. The coming months will not only test the FW48, but also the team’s ability to respond under pressure and salvage a deeply frustrating start.

 

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NEXT ARTICLE – Red Bull’s bizarre tyre choice for Barcelona test

The Formula One season is just one day away from the cars hitting the track for the first time in anger. Yes a number of teams have already performed a ‘shakedown’ of their 2026 challengers using filming days (200km allowed) or a demonstration day – as did Ferrari (15km), but these outings a really just testing the systems are in order rather than pushing the car hard for the first time.

Unlike during a Grand Prix weekend where Pirelli decide on the tyre compounds used by all the teams, for testing the competitors can choose the compounds they require for their three days of running. Each team can run up to 25 sets of Pirelli tyres including the intermediate and the wet tyres which may be required later in the week given the weather forecast deteriorates from day to day.

The tyre selections reveal a significant amount of information as to how the various teams intend to conduct their various run plans over their days on track. Red Bull have remarkably elected to receive a whopping 18 sets of the soft compound, one of the medium and non of the hard. They have also selected four sets of the intermediate tyres and two of the full wet compounds.

 

 

 

Red Bull go all in on soft tyres

Clearly, the Milton Keynes based team have little interest in testing their car in Barcelona over lengthy race simulation runs. Their focus will be on how the aerodynamic components perform with a wide range of setup differentials but part of their decision may have been affected by the early time of year.

Formula One used to test in Barcelona in early February before they reduced the number of pre-season days on track and moved the test to the warmer climes of Bahrain. Some mornings at the Circuit de Catalunya the personnel would find ice on their cars as the temperatures in the Catalan region often reflected thos of northern Europe.

Of course the team’;s would have been forced to elect their testing tyre compounds some weeks ago, given the production schedule required for the Italian rubber manufacturer to produce some 1100 individual tyres would have begun some weeks ago. Tyres for the season opener in Australia were shipped boy boat back in early January.

It could be that Red Bull’s obsession with the soft compound tyre was also based on the fact they expected the track temperatures to be in single digits, but whilst some wet weather is expected…CONTINUE READING THIS STORY