Overview
- Mercedes logged more than 2,300 kilometers with few issues and left Barcelona encouraged by the W17’s reliability and long-run learning, according to drivers and engineers.
- Lewis Hamilton closed the week with a 1:16.348 for Ferrari after Charles Leclerc led the morning on 1:16.653, with teams cautioning that cool conditions and differing programs limit comparisons.
- McLaren signaled pace as Lando Norris posted 1:16.594 after Oscar Piastri rebounded from a Thursday fuel-system investigation to complete strong mileage on Friday.
- Red Bull recovered from earlier setbacks to give Max Verstappen 118 laps on the final day, helping compress the headline times as rivals edged closer to Mercedes’ earlier benchmark.
- Newcomers worked through teething issues: Audi traced early stoppages to solvable problems such as a hydraulic leak and increased Friday mileage, while Cadillac reported ongoing power unit, electronic and drivetrain challenges and limited laps.