Red Bull leads 2026 F1 engine race as Mercedes eligible for upgrades

The 2026 Formula 1 power-unit regulations have led to Red Bull reportedly being identified as having the strongest engine following the first ADUO assessment. Mercedes is eligible for upgrades this season, raising questions about their competitive advantage with a class-leading hybrid system. Ferrari, Audi, and Honda are expected to receive two upgrade opportunities after being classified within a 4% deficit. ADUO allows for performance upgrades based on assessments that create opportunities, measured against a benchmark engine performance. The next ADUO assessment windows will take place before the Hungarian and Mexico City Grands Prix.

• 4:17 AMYahoo Sports — Red Bull Reportedly Leads 2026 F1 Engine Race as Mercedes Becomes Eligible for Upgrades