Formula 1 to increase ICE power share to 60% from 2027

The FIA, Formula 1 teams and engine manufacturers have agreed to modify the sport’s power‑unit balance. Starting in 2027 the internal‑combustion engine (ICE) will provide 58 % of total output, rising to a 60 % share in 2028, while the electric component will fall to 42 % and then 40 % respectively.

To achieve the shift, fuel flow will be raised by 7 % in 2027, allowing ICE power to rise from roughly 400 kW to 420 kW, and to 450 kW by 2028. The electric system’s power will be trimmed from 350 kW to 300 kW, but a 350 kW boost will remain for overtaking. Battery‑charging capacity will also be increased from 250 kW to 375 kW. The changes are expected to be formalised at the FIA World Motor Sport Council meeting on 23 June.

Team principals and drivers welcomed the adjustment. F1 President Stefano Domenicali called it a “fundamental step” for sustainability and competition. Mercedes boss Toto Wolff expressed confidence in his team’s technical ability, while Red Bull’s Christian Horner noted it will reshuffle the grid. Ferrari’s Charles Leclerc said it will affect car behaviour and driving style, and Max Verstappen acknowledged the changes move in the right direction despite earlier hopes for an earlier rollout.