Formula 1's attempt to rewrite its engine rules for 2027 remains stuck in the slow lane after the latest F1 Commission meeting broke up without agreement on the headline proposal.
Meeting on Tuesday, 2 June, the Commission had hoped to firm up a plan to rebalance the current power units away from their heavy electrical bias. A move towards a 60/40 split between combustion engine and battery had been billed as an agreement in principle before the Canadian Grand Prix — but converting that into hard regulation has run into the sport's familiar political headwinds.
The sticking point is the manufacturers. The fine print, from fuel flow tweaks to the exact mechanics of the rebalance, continues to divide the six power unit suppliers, and a change of this scale needs four of them to sign off. That supermajority has not yet materialised.
The positions are well established. Ferrari are pushing their own development path, while Audi and Honda are wary of the extra spending a mid-cycle change would require, having already poured resources into the 2026 package on the basis that it would be left alone.
The meeting was not a total blank. Winter testing for 2027 will be extended from three days to four, most likely in Bahrain, easing back towards normal after the one-off six-day programme granted for this year's major rules overhaul. Delegates also waved through minor aerodynamic and bodywork changes, plus tighter limits on running older cars to stop teams using those sessions to scout circuits hosting upcoming races.
The engine question, though, rolls on unresolved. With a finite window to legislate for 2027, the pressure on manufacturers, the FIA and Formula One Management to find common ground will only grow. The drivers have made their wishes plain. The harder task is getting the engine builders to agree.
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*Originally published on [News Formula One](https://newsformula.one/article/f1-2027-engine-rules-no-breakthrough-commission). Visit for full coverage.*
