Mercedes Edge Day 4 in Barcelona as Russell Leads F1 Pre-Season
TL;DR Summary
Mercedes dominated Day 4 of the 2026 Barcelona pre-season test, with George Russell fastest in 1:16.445 after taking the W17 for a long run (77 laps). Teammate Kimi Antonelli was 1:17.081 in the morning, while Charles Leclerc and Lewis Hamilton led the 1:18s group for Ferrari as they logged about 174 laps combined. Oscar Piastri’s McLaren ran 48 laps before a fuel-system issue cut afternoon running, and Aston Martin’s Lance Stroll completed four exploratory laps. Across three days Mercedes have racked up 499 laps.
- 2026 F1 Barcelona Pre-Season Test - Day 4 results racingnews365.com
- DEBRIEF: What happened on Day 4 of the Barcelona Shakedown? Formula 1
- F1 teams are hiding early struggles with new cars. Should they let fans watch? The New York Times
- Mercedes sets new benchmark laptime at F1's Barcelona test The Race
- What happened on day four of F1's secretive 2026 shakedown Autosport
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