What happened: Honda Racing Corporation president Koji Watanabe said the second ADUO upgrade was introduced at the Spanish Grand Prix in Madrid. The package centered on the power unit turbocharger. Aston Martin struggled early but improved after a major chassis update.
Why it matters: The disclosure clarifies Honda's development timing under F1's ADUO parity system. Mercedes was handed one engine upgrade and Ferrari two under the same rules, making Honda's early second step a competitive marker. Aston Martin's recovery links engine and chassis progress ahead of the October handover.
By the numbers: Honda: second ADUO upgrade, turbocharger, Spanish GP. Reported ADUO allocations: Mercedes one upgrade, Ferrari two. Audi introduced a new power unit in Barcelona.
What to watch: Watch Honda's drivability fixes and Aston Martin's form through the October handover period.
Source
- @autosport