F1 Faces Critical Meeting as 2027 Engine Rule Change Hangs in Balance

F1's power unit manufacturers are set for a critical meeting during the Canadian Grand Prix weekend to address the proposed 2027 engine rule changes, which are at risk of collapse. Earlier this month, the FIA announced a shift to a 60:40 power output split between the internal combustion engine and batteries, moving away from the original 50:50 ratio adopted for 2026. The change was prompted by early-season issues where drivers had to lift and coast to manage energy recovery.

Why it matters:

The revised split is intended to improve raceability and reduce reliance on heavy batteries, but disagreement among manufacturers over when to implement it threatens to derail the entire regulatory shift. If no consensus is reached, the 2027 rules could stall, leaving teams uncertain about development paths.

The details:

• Support in principle: All six PU manufacturers—Audi, Honda, Ferrari, Mercedes HPP, and Red Bull Powertrains—broadly agree that the split needs adjustment.
• Timing clash: Some push for an immediate change in 2027, while others argue for delaying until 2028.
• Key concerns: Audi has invested heavily in the 50:50 design and is reluctant to redesign for 60:40. Ferrari also has reservations, while Mercedes HPP reportedly favors the change despite having the class-leading engine. Honda, struggling with the current rules, supports whatever the FIA decides.

What's next:

The Montreal talks are expected to be tense. A compromise—perhaps a phased introduction—could salvage the rule change, but failure to agree would force the FIA to either impose a solution or abandon the 2027 overhaul entirely.