The penultimate F1 shakedown event takes place today at the Circuit de Barcelona-Catalunya.
Mercedes enjoyed another strong day on Wednesday as the Brackley-based squad clocked almost 200 laps between both of its drivers.
Not only did it boast the most mileage, Kimi Antonelli and George Russell ended the day in first and second place, respectively.
Just two more days remain for the teams to collect data ahead of the next pre-season test in Bahrain.
For some squads, today could mark the final day of on-track action if they opt to run.
We will provide you with all of the happenings we can during the day of running, which you can follow in the live updates below!
LIVE: 2026 F1 Barcelona Pre-Season Test - Day 4
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