Overview
- Red Bull Powertrains director Ben Hodgkinson said the design is legal and was pushed to the very limit of what the rules allow.
- Audi, Ferrari and Honda have lodged concerns that some units comply in static tests yet run higher effective ratios on track.
- The FIA’s Article C5.4.3 specifies ambient, stationary checks, while Article C1.5 requires full compliance at all times during competition.
- Paddock reporting suggests the suspected method involves thermal expansion to raise the effective ratio, with a potential gain of about 10kW.
- No short-term change to measurement or rules is expected before testing, so any advantage could persist into much of 2026, per current reporting.