Formula 1 stakeholders will hold emergency talks during the Canadian Grand Prix weekend as manufacturers remain divided over 2027 power unit regulations. The current near-50:50 split between V6 turbo and MGU-K has created complexity that limits drivers from pushing flat-out, even in qualifying. Cars lack sufficient energy for full-lap racing, causing unusual battery-driven racing and safety concerns.

The FIA's proposal shifts to a 60-40 combustion-to-electric split, but requires consensus from at least four of six manufacturers. Audi, Ferrari and Honda have already voted against it, blocking implementation. Timing poses the biggest challenge - teams with 2027 projects underway face chassis redesigns if fuel flow increases require larger tanks.

Haas team principal Ayao Komatsu warned that extra costs could reach '5 million, 10 million' per team, calling the direction 'ridiculously expensive.' Drivers including Carlos Sainz and Max Verstappen support changes but acknowledge political hurdles. Verstappen said the amendments are 'definitely' enough to influence his F1 future.

The ADUO system for underperforming manufacturers adds another layer of complexity, as the same engineers would handle both catch-up work and 2027 hardware changes. Smaller teams face particular strain allocating resources efficiently while managing multiple regulatory adjustments simultaneously.