FIA confirms no ADUO changes in final 2026 F1 review

The FIA has published its final Additional Development and Upgrade Opportunities (ADUO) results for the 2026 Formula 1 season, and no power unit manufacturer's concessions have changed. The ADUO mechanism allows manufacturers that fall behind the leading engine to make additional updates, measured on a performance scale.

After the first period, Red Bull Ford Powertrains was named the benchmark, while Mercedes was between 2 and 4 per cent behind on internal combustion engine power and was granted one extra upgrade. Ferrari, Audi and Honda were more than 4 per cent behind and received two upgrades this season. Red Bull Ford Powertrains requested a review of the analysis, which delayed the publication of the first results.

The third and final analysis covered data from the Dutch Grand Prix to the United States Grand Prix, and the FIA said the changes in the gaps did not result in any additional homologations. FIA single-seater director Nikolas Tombazis said the organisation was confident in its findings.