Formula 1’s governing body has agreed a package of rule changes affecting power unit regulations from the 2027 and 2028 seasons, following discussions with teams and manufacturers.
The International Automobile Federation, the FIA, confirmed that the current 53 percent combustion and 47 percent electric power split will change to 58 to 42 in 2027 and 60 to 40 in 2028.
The FIA also announced increases in fuel flow, rising by 5 percent in 2027 and 13 percent in 2028. The maximum power output from the internal combustion engine will increase from 400 kilowatts to 420 kilowatts in 2027, and then to 450 kilowatts in 2028.
The changes are intended to reduce the need for energy management during races and allow more consistent full throttle running in qualifying conditions. The FIA stated the updates respond to feedback from drivers regarding racing conditions under the current regulations.
The proposals will be submitted for approval to the World Motor Sport Council on 23 June.
FIA President Mohammed Ben Sulayem said the changes reflect collaboration within the sport.
“Formula One has always evolved to meet new challenges and seize new opportunities,” he said.
“These proposed changes reflect the collaborative work taking place across the sport to ensure the regulations continue to support exciting racing, technological innovation and long-term sustainability.”
Formula 1 also referenced recent fan survey data suggesting increased approval ratings for recent races, including a reported rise in positive feedback following the Monaco Grand Prix.
The announcement comes during a strong run of form for Mercedes driver Kimi Antonelli, who has become the sport’s youngest championship leader after winning five consecutive races.
