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FIA grants no extra engine upgrades after final review

The FIA has completed its third and final Formula 1 engine assessment without granting manufacturers further development entitlements. Gaps to the leading combustion engine changed, but the review left existing allowances in place. The system gives trailing manufacturers extra approved upgrades, spending room and testing time, with the next assessment period starting in 2027.

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Engineers inspecting an internal combustion engine mounted on a test stand inside a Formula 1 power-unit and dyno testing bay.

Final assessment produces no new entitlements

The International Automobile Federation, Formula 1’s governing body, granted manufacturers no further engine development entitlements after its final review of the season. Its Additional Development and Upgrade Opportunities system, known as ADUO, allows extra development for manufacturers trailing the strongest combustion engine.[1], [2]

The third assessment covered races 12–18. The FIA said results had been sent to every power-unit manufacturer. Relative gaps to the leading engine changed, but those changes did not produce further homologations, the formal approvals for additional developments. The detailed performance-index measurements remain confidential.[1]

Allowances depend on the combustion-engine gap

Under Article C4 of the technical rules, a combustion engine at least 2 per cent behind the best unit qualifies for the mechanism. Eligible manufacturers receive opportunities for approved upgrades in the current and following season, alongside extra cost-cap and engine-dyno testing allowances. The size of the gap determines the entitlement. The first review ended after Canada, the second after Hungary and the third after the United States Grand Prix.[1]

First-period approvals stay in place

Mercedes fell in the 2–4 per cent band in the first review, earning 1 additional approval for this season and 1 for 2027. Audi, Ferrari and Honda were above 4 per cent and each received 2 approvals in both seasons. The second review also granted no extra approvals. FIA single-seater director Nikolas Tombazis said manufacturers and teams were working with the federation on methodological refinements. The next review covers the first 6 races of 2027, from Bahrain to Miami.[1]

References

  1. News sourceFIAFIA’s final engine review grants no extra upgrades↩1↩2↩3↩4
  2. News sourceSky SportsFIA final review yields no further engine upgrade rights↩

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