FP3: Russell leads final practice in Barcelona as Mercedes demonstrates its dominant form

George Russell set the benchmark in Free Practice 3 ahead of the Barcelona‑Catalunya Grand Prix, delivering a commanding lap as Mercedes emerged as the team to beat in the final hour of preparation before qualifying.

The Briton’s 1m15.679s stood as the fastest time of the weekend so far, placing him comfortably ahead of McLaren’s Oscar Piastri and Ferrari’s Charles Leclerc.

The session unfolded slowly under intense heat, with track temperatures climbing to 50°C, making tyre management and single‑lap execution increasingly difficult.

Most teams opted to remain in the garage early on, with only the Cadillacs of Valtteri Bottas and Sergio Pérez venturing out for initial system checks after both cars broke the overnight curfew.

Alpine and McLaren also conducted early installation laps before the field settled into a prolonged quiet phase.

It wasn’t until after the 20‑minute mark that meaningful running began. FP2 pacesetter Lando Norris set the first representative time, a 1m16.609s on soft tyres, narrowly edging Leclerc by under a tenth. But as the session reached its midpoint, Mercedes finally revealed their hand.

Russell immediately vaulted to the top with a 1m16.258s, while championship leader Kimi Antonelli slotted into second, 0.242s adrift.

Antonelli’s session, however, proved more complicated. The Italian encountered heavy traffic on his final push laps and ended the session only seventh, eight tenths off Russell’s best.

He was also placed under investigation for erratic driving, with the stewards set to review the incident after the session.

A red flag briefly interrupted proceedings when Bottas slid into the gravel at Turn 10, reporting over the radio that he had “lost [his] brake pedal” after approaching the corner at reduced speed.

His stranded Cadillac required recovery, leaving just 21 minutes on the clock when the session resumed.

The restart triggered a rush of activity as teams scrambled to complete their qualifying simulations. But the extreme heat made conditions treacherous, with drivers struggling to extract peak performance even over a single lap.

Despite the challenge, Russell became the first driver to dip below the 1m16s barrier, improving to his final time of 1m15.679s, which remained unchallenged.

Piastri came closest, finishing 0.214s behind, while Leclerc ended the session third, just 0.243s off Russell.

Norris followed in fourth, a mere one‑tenth behind his McLaren teammate, with Lewis Hamilton completing the top five, albeit 0.702s down on the leading Mercedes.