F1's 2026 power unit regulations represent the sport's biggest engineering shake-up in years — and the effects are already showing on track. In this edition of Autosport Explains, Jake Boxall-Legge sat down with Powertrains Engineer Estanis Buigues Mahiques to break down what's actually changed: a weaker combustion engine, tripled electric output, the death of the MGU-H, and a new energy management philosophy that's closer to Formula E than anything F1 fans have seen before.
