FIA confirms ADUO scheme to begin after Canadian Grand Prix

The FIA has confirmed that its ADUO (Assisted Development and Upgrade Opportunities) scheme will come into effect after next weekend's Canadian Grand Prix, the fifth round of the 2026 Formula 1 season. Originally scheduled to begin after Miami, the calendar was reshuffled due to the cancellations of Bahrain and Saudi Arabia, pushing the activation point to Montreal. Manufacturers whose internal combustion engine performance index falls between 2% and 4% below the best performer will qualify for the assistance program.

Why it matters:

ADUO is designed as a lifeline for engine suppliers struggling under the new 2026 regulations. Without it, teams like Aston Martin (Honda), Ferrari, and Audi could fall irreversibly behind Mercedes, which is widely seen as the early benchmark. The scheme allows eligible manufacturers to implement upgrades starting from the next race after notification, preventing a runaway dominance scenario.

The details:

• The first assessment period now covers the first five races: Australia, China, Japan, Miami, and Canada. Results will be communicated no later than two weeks after the Canadian GP.
• Subsequent periods cover races 6–11 (Monaco to Hungary) and 12–18 (Netherlands to Mexico).
• Honda, Ferrari, and Audi have all faced early-season power unit struggles. Audi publicly cited its engine as a weakness, while Honda's new partnership with Aston Martin has yet to deliver expected performance.
• Once eligible, manufacturers receive a specific upgrade allowance and can apply changes as early as the following race.

What's next:

Expect several engine suppliers to rush upgrades if they qualify after Canada. The FIA will also review the situation again after Hungary and Mexico. For teams like Red Bull (Honda-powered) and Sauber (Audi), ADUO could be crucial to closing the gap before the season progresses too far.