Eight teams are on track on Day 5 of the Barcelona pre-season test. Here is why the other three teams are not running programmes today. The final day of the first winter test of the 2026 Formula 1 season is now underway at the Circuit de Barcelona-Catalunya.

Here's what we've learned from the fourth and penultimate day of Formula 1's 2026 Barcelona shakedown

Laurent Mekies, Red Bull’s F1 boss, has used the word “crazy” to describe the scale of the team’s new in-house engine program. With support from Ford, Red Bull has built its very first F1 engine for 2026, powering its own team and the sister Racing Bulls outfit.

After five days of shakedown testing at Barcelona, ESPN's F1 analysts reveal what they learned about the state of the field ahead of 2026 rule changes.

Two Formula One experts, Sky Sports' Ted Kravitz and Craig Slater, have reviewed what they witnessed from Lewis Hamilton and Co at the Barcelona Shakedown, before predicting which F1 team may come out on top in the 2026 season.

Mercedes were pre-season favourites for 2026 long before any of the new cars ran on track, and nothing that happened in the Formula 1 'shakedown' in Spain this week has changed that.

The 2026 Formula 1 era roared to life in Barcelona this week, offering a first glimpse at the machines designed to redefine the sport.