FIA ranks Red Bull engine as benchmark, gives Mercedes ADUO upgrade

The FIA announced the first ADUO list for the 2026 Formula 1 season, classifying power units based solely on internal‑combustion performance. Red Bull’s Ford‑partnered power unit was placed at the top, meaning it does not qualify for any additional development opportunities, while Mercedes was identified as needing assistance and will receive an upgrade allowance.

Red Bull team principal Christian Horner and others expressed surprise, saying the decision does not reflect on‑track performance where Mercedes leads the championship. The scheme, intended to help less‑competitive manufacturers such as Honda, grants Mercedes and other listed teams (Audi, Honda) up to two development upgrades this season and more next year, while Ferrari, Audi and Honda fall into a slower‑upgrade category. The move has sparked debate among team leaders about the fairness and impact on competition.