FIA announces ADUO results following first and second review periods of 2026
Additional Development and Upgrade Opportunities (ADUO) is a mechanism within the 2026 Formula 1 Technical Regulations (Article C4) allowing Power Unit manufacturers whose Internal Combustion Engine (ICE) performance falls at least 2% below the best-performing ICE across defined review periods to introduce additional homologated upgrades to their Power Unit during the current and following season, […]