Williams relies on virtual testing and Mercedes data after missing Barcelona shakedown

Williams missed the official pre-season shakedown in Barcelona but utilized advanced virtual testing and data from power unit supplier Mercedes to prepare for the upcoming season. Team Principal James Vowles is confident the team can recover the lost track time during the official tests in Bahrain.

Why it matters:

In a sport where every minute of track time is precious, missing an entire shakedown could be a significant setback. Williams' ability to mitigate this through simulation and supplier data highlights the increasing role of off-track technology in F1 development and the critical importance of reliable technical partnerships.

The Details:

• Williams was the only team not to run during the five available days at the Circuit de Catalunya, despite halting development on its 2024 car early.
• The team conducted a "successful" Virtual Track Test (VTT), an advanced rig that simulates loads on a near-complete car—including power unit, gearbox, and chassis—without needing a physical track.
• Drivers Carlos Sainz and Alex Albon also completed extensive running in the driver-in-the-loop simulator.
• Supplier Support: Mercedes, Williams' power unit supplier, provided a crucial assist by running 502 reliable laps during the shakedown. Combined with laps from other Mercedes-powered teams (McLaren and Alpine), this generated a wealth of shared data on the gearbox and power unit.
• Vowles stated the VTT was key to "flushing out a lot of the demons that are buried in the car," referring to hidden reliability and performance issues.

What's next:

The focus now shifts to the official pre-season testing in Bahrain, where Williams will have six days to correlate its virtual data with real-world performance.

• Vowles expects "mileage accumulation at a very high level" across all teams, a contrast to the troubled start of the last major power unit era in 2014.
• With initial reliability demonstrated, the competitive battle will quickly shift to optimization: how teams manage electrical energy and extract maximum performance from their new packages.
• Williams aims to use the Bahrain test to validate its aerodynamics and vehicle dynamics, the key areas that can only be perfected with actual track data.