Mercedes focused on improving F1 qualifying pace with W15

The Brackley squad focused on long stints rather than glory runs across the three-day winter test in Bahrain, with George Russell taking second on the final day using softer C4 tyres after he and team-mate Lewis Hamilton had stayed well clear of the top of the leaderboard earlier in the week.

PLUS: Why it’s a Red Bull vs Ferrari battle in F1 2024 testing’s long run times

Trackside engineering director Andrew Shovlin explained that his team still…