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P1racenews AI automatic summary:
Check out the morning results from the fourth day of the Barcelona shakedown.
Mercedes continued their successful testing in Barcelona as Kimi Antonelli completed nearly 90 laps and set the fastest time of the test at 1:17.081.
Meanwhile, Lewis Hamilton returned to action for Ferrari and also logged almost 90 laps, staying ahead of McLaren’s Oscar Piastri but behind five-time winner Lance Stroll.
Sergio Perez and Liam Lawson also hit the track, making it a relatively quiet morning session with only five cars on the circuit.
Later in the day, Aston Martin is expected to make an appearance with Lance Stroll at the wheel.
For a detailed look at the morning results, check out the list below!






