Red Bull Appeals FIA Engine Ranking Under ADUO System

Red Bull has formally challenged a Formula 1 regulatory ruling that identified its internal combustion engine as the sport's benchmark, arguing its own data shows no such advantage. The dispute centers on the FIA's Additional Development and Upgrade Opportunities (ADUO) system, a new mechanism designed to prevent competitive stagnation under the 2026 engine regulations.

Following an assessment period covering the first five races from Australia through Canada, the FIA informed teams in Monaco that Red Bull Powertrains possessed the strongest internal combustion engine (ICE). Under ADUO rules, this finding allows rival manufacturers lagging behind to receive performance-related upgrade opportunities. Mercedes, judged to be more than two percent behind, would receive one upgrade, while Ferrari, Audi, and Honda, each assessed as more than four percent behind, would receive two.

Red Bull team principal Laurent Mekies confirmed the team has appealed the finding and is seeking further discussions with the governing body. He stressed that Red Bull supports the principle of the ADUO system but disputes the conclusion. "We are completely okay with the fact that the rules state that you...