Formula 1 is tightening its hybrid regulations for the 2026 season to make races easier on drivers and more exciting for fans. The MGU‑K unit can now unleash a full 350 kW (469 hp) in designated acceleration zones, matching the V6’s 400 kW output. Outside those zones the electric boost drops to 250 kW, shrinking speed differentials and easing energy‑management worries overall in practice.

Drivers also lose the extra 150 kW “boost” that previously fired when they trailed a competitor by a second, curbing overtaking aids. A new “low‑power start detection” system will flash warnings and automatically fire the MGU‑K if a car lags off the line, a tweak first trialed at the Miami Grand Prix. Officials hope the change prevents stalled starts without sacrificing early‑race drama.

Rain‑handing receives modest upgrades: hotter blankets for wet tires, a reduced MGU‑K limit when conditions are slick, and clearer rain‑light signals. While lap times will likely dip, the FIA believes the combined adjustments will quiet critics who have panned the sport’s energy‑constrained sprinting since February’s testing. The revised rules aim to preserve the hybrid era’s noise while restoring on‑track battles.