NederlandsFIA grants no extra F1 power unit upgrades after third ADUO review
The FIA has confirmed that no further homologation upgrades will be granted to Formula 1 power unit manufacturers following the third Additional Development and Upgrade Opportunities (ADUO) assessment of the 2026 season, covering Races 12 to 18.
Although performance gaps between manufacturers shifted during the latest review, none of the changes was sufficient to trigger additional allowances. The eligibility established after the first assessment therefore remains unchanged, and the second review also concluded without extra allowances.
After the first review, Mercedes was found to be between 2% and 4% behind the best-performing internal combustion engine and received one additional homologation upgrade for both 2026 and 2027. Audi, Ferrari and Honda were more than 4% behind and received two opportunities for each season. The FIA has not disclosed the precise performance figures, citing the confidential nature of the data.