Following the second official measurement period, the FIA has formally confirmed the ADUO (Additional Development and Upgrade Opportunities) allocations that were initially distributed after the opening few rounds of the F1 season.
The findings paint a clear picture of where each manufacturer currently stands in the engine pecking order, and the implications for the development race heading into the 2027 campaign are considerable.
The Red Bull-Ford internal combustion engine (ICE) remains the benchmark. Mercedes sits in second, with a confirmed performance deficit of two per cent.
Ferrari, Audi, and Honda all trail by more than four per cent, though the FIA has declined to publish their precise figures for reasons of commercial confidentiality.
The significance of this announcement extends well beyond a simple performance snapshot. Confirming the existing ADUO levels means the resource allocations tied to those assignments are now locked in for next season, covering both budget cap relief for engine development and additional hours on the test bench.
For manufacturers who have already begun implementing ADUO-linked evolutions, the timing is particularly advantageous.
Ferrari's strategic timing
Ferrari is a case in point. The Scuderia is set to introduce its ADUO 2 evolution at Monza next weekend, and by doing so it secures a meaningful head start in planning its development programme for 2027.
The reason for this is structural rather than coincidental. The third and final ADUO measurement of the current cycle will carry no retroactive effect on the development rights already granted under the first two measurements.
In other words, whatever a manufacturer earns under the first two rounds of ADUO is theirs to keep, regardless of what the third measurement reveals; only from the opening measurement of next year will the intervention levels be recalibrated.
Consider the following scenario. If Ferrari's Monza upgrade were to dramatically close its performance deficit, bringing it from above four per cent down to around two per cent, that improvement would have no bearing whatsoever on the two subsequent ADUO interventions already assigned to the team for 2027 — those allocations remain intact.
The arithmetic, therefore, could work very much in Ferrari's favour. Total performance convergence with the leading manufacturers is a realistic prospect before the start of the 2027 season.
And with a second ADUO intervention already scheduled early next year, Ferrari could theoretically move ahead of its rivals before the FIA conducts its post-round-six review and redistributes development entitlements accordingly.
The moment Ferrari has chosen to deploy its ADUO 2 allocation, rather than the allocation itself, may ultimately prove to be the more consequential decision.
The Monza introduction sets the Scuderia on a trajectory that, within a matter of months, could fundamentally alter the competitive order among power unit suppliers.
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