Williams will not take part in Formula One's pre-season test in Barcelona next week, the team said on Friday after failing to get their new car ready in time.
The test at the Circuit de Catalunya will take place behind closed doors, without media access, and was due to be the first time all teams – now up to 11 with debutants Cadillac – had their 2026 cars on the track together.
The 2026 season marks the start of a new engine era with an overhaul of the technical regulations.
Statement from Atlassian Williams F1 Team. pic.twitter.com/N4O1F6cgUz
— Atlassian Williams F1 Team (@WilliamsF1) January 23, 2026
"Atlassian Williams F1 Team has taken the decision not to participate in next week's shakedown test in Barcelona following delays in the FW48 programme as we continue to push for maximum car performance," the team said in a statement.
"The team will instead conduct a series of tests including a VTT (Virtual test Track) programme next week with the 2026 car to prepare for the first official test in Bahrain and the first race of the season in Melbourne.
"We are looking forward to getting on track in the coming weeks and want to thank all our fans for your continued support – there is a lot to look forward to together in 2026."
Williams, who also missed two days of the opening pre-season test ahead of the 2019 campaign, finished in fifth place in the team standings last season, their best since 2017.
The season begins with the Australian Grand Prix in Melbourne on March 8.