Toto Wolff

Mercedes F1: Spa Win Masks a Growing Power Unit Worry

Victory at Spa extended Antonelli’s title lead — but Mercedes left Belgium confronting a power unit mystery that reaches every team it supplies: an unexplained straight-line deficit, a fourth engine for the championship leader, and an FIA rule change taking effect on August 1.

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Russell’s Spa Struggle: Mercedes Can’t Explain Speed Loss

Eight tenths on Friday, four on Saturday, all of it on the straights — George Russell’s Mercedes is haemorrhaging speed for reasons the team cannot identify. From the karting trick that failed to Wolff’s U-turn, inside the gremlin shadowing the title fight.

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Wolff: Mercedes Starts “Not Acceptable” to Win Titles

Kimi Antonelli has lost 26 places at race starts across five standing starts in 2026 — and not once led into Turn 1 from pole. Toto Wolff says the fault lies entirely with the team, and admits it is “not acceptable” if Mercedes wants to defend its championship lead.

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