Teams entered their fourth and last day of Week 1 of pre-season testing at the Circuit de Catalunya on Friday.
As everyone gets a grip on development, the pace and performance is ramping up, as the time-sheets attest.
Here's a recap in pictures of the day's action in Barcelona.
Alpine has launched a formal challenge against the FIA following the Monaco Grand Prix, seeking…
Cadillac and Sergio Perez were left heartbroken after the Monaco Grand Prix when a post-race…
As chaos erupted around him in a crash-strewn, red-flagged Monaco Grand Prix, Kimi Antonelli produced…
Kimi Antonelli continued his extraordinary rise through Formula 1 with another commanding performance in Monaco,…
George Russell walked away from the Monaco Grand Prix with no points, a widening championship…
Charles Leclerc says his late retirement from a podium finish in Sunday’s Monaco Grand Prix…