Williams targets Miami gains in FW48 weight fight

Williams will bring the first results of an intensive weight-reduction program to Miami after the FW48 began the season 28 kilograms overweight following four failed crash-test attempts and late FIA chassis homologation.

That troubled start left the Grove team chasing the season almost immediately. The delayed homologation meant Williams missed its end-of-January Barcelona shakedown, and when the car finally ran, the FW48’s excess weight had already become a major performance handicap in a formula where every kilogram hurts lap time, cornering and tyre life.

Williams used the April shutdown to attack that problem at the factory, reviewing components and manufacturing processes in an effort to strip weight from the car. The target is significant. According to the reports, the team believes it can find roughly one second per lap through weight reduction alone.

The longer-term aim is not just to reach the minimum weight limit, but to go below it. That would allow Williams to place ballast where it wants for better balance, a change it expects would also help reduce tyre wear.

Alexander Albon, speaking on The Fast And The Curious podcast, made clear Miami is only the first step. “I don’t want to say it’s going to be easy, but there’s so much baggage on the car that there’s a lot of potential for us to go forward,” Albon said. He added that progress “won’t happen overnight” and described it as a race-by-race effort.

Albon said the Miami package “will be better, but it won’t be the best thing since sliced bread,” as Williams tries to recover from a start that has produced only two World Championship points, both scored by Carlos Sainz in China. After finishing fifth in the constructors’ championship last year, that early return has underlined how much the FW48’s difficult birth has hurt the team.

James Vowles, the Williams team principal, had already pointed to the importance of the April break in a Vowles Verdict before the shutdown. “Every single hour of that break we need in order to get ourselves back on the front foot by the time we come back to Miami,” he said, adding that the period was about taking stock of what the team could actually change.

For now, that means resetting expectations as much as reducing mass. Albon said Williams is “now repositioning our focus” toward trying to “get back into the midfield fight and then get to the top of that fight,” rather than expecting an instant turnaround from one update.

The bigger step is planned for later in the summer, when Williams intends to introduce a new B-chassis. That will need to pass another FIA homologation crash test, and the team’s development phase is expected to continue until the Italian Grand Prix at Monza in early September.

Albon expects the scale of change to be obvious by then. “By the time the end of the year comes around, we’re going to have a completely different car than where we are right now,” he said, with Miami marking only the first visible move in Williams’ attempt to salvage its 2026 campaign.