Power Units

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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Leclerc’s Shanghai Blackout: Why the 2026 F1 Power Units Are So Hard to Master

A seemingly quick lap in SQ3 evaporated the moment Leclerc hit Shanghai’s 1.2km back straight and found his battery empty. The incident lifts the lid on why 2026’s hybrid power units — without the MGU-H and with a tripled MGU-K output — are pushing every team to their modelling limits.

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