Mercedes boss Toto Wolff has snapped back at "utter bulls---" about a potential fuel problem a day after the FIA proposed a midseason rule change over the team's engine controversy.

Kimi Antonelli kept Mercedes at the top of the timesheets on the penultimate day of preseason testing in Bahrain after lowering the overall benchmark lap time to a 1:32.803.

Lando Norris has said his comments about Max Verstappen and the new Formula 1 rules were "to see the reaction of everyone" and that he in fact shares the four-time world champion's negative outlook on the 2026 cars.

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A stricken Aston Martin caused a red flag for the second consecutive day of Formula 1’s final 2026 Bahrain pre-season test

Mercedes boss Toto Wolff has angrily hit back at suggestions his team risks running its engines with non-homologated fuel at the start of the season

Gary Anderson explains the pros and cons of Ferrari's upside down rear wing, and how it differs to the other teams' approaches for 2026

Formula 1 teams have been invited to run with reduced electric power deployment at times during the final Bahrain test - here's why

Kimi Antonelli topped the penultimate day of F1 2026 pre-season testing with the fastest lap in Bahrain this year so far