Overview
- Audi quietly fitted new internal combustion engines and turbochargers to both cars in Barcelona, a move reported to be pre‑prepared and focused on drivability rather than a large power jump.
- Ferrari confirmed it will run its first ADUO‑authorised engine step at the Austrian Grand Prix that teams say is modest and is estimated to be worth under 10 hp with a larger turbo planned after the summer break.
- The ADUO system provisionally named Red Bull the ICE benchmark and granted development tokens to other manufacturers, and the FIA is re‑checking torque‑sensor data after Red Bull challenged the initial assessment.
- ADUO measures only internal combustion engine output using standardized in‑car torque sensors and awards extra homologation slots, dyno hours and scaled cost‑cap allowances, which means hybrid and battery performance are not covered by the concession.
- Teams warn that converting dyno gains into race‑ready performance takes months because upgrades require integration, drivability tuning and fuel calibration, and the immediate effect on lap times is likely to be gradual rather than instant.