Formula One's key stakeholders have reached an agreement on engine changes for the 2027 and 2028 seasons, aimed at addressing widespread driver dissatisfaction, particularly from four-time champion Max Verstappen, who has repeatedly threatened to leave the sport over the current rules.
The changes target the energy management burden on drivers, with current engines operating at a 53-47 split between internal combustion engine (ICE) and electrical energy. This has led to counterintuitive driving, focus on energy harvesting rather than racing, and safety concerns due to closing speeds. A proposal in May to shift the split to 60-40 in favour of the ICE was agreed in principle but faced objections from Audi and Ferrari over implementation as early as next year.
Under the compromise, the power delivery split will be set at 58-42 for 2027 with a 5% fuel flow increase, boosting maximum ICE output from 400kW to 420kW. In 2028, it will reach 60-40 with a 13% fuel flow increase and 450kW maximum output. Verstappen had described a 60-40 split as the 'bare minimum' he would accept, and the 2027 figure falls short of that threshold.
The incremental approach aims to avoid major hardware changes to power units, which manufacturers like Audi have heavily invested in. The FIA stated it will expedite formal approval to provide clarity and time for adaptation. The proposals are subject to approval by the World Motor Sport Council at its next meeting in Macau on 23 June.
