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No changes to ADUO allowances after latest FIA analysis period
The FIA has announced the findings of its latest power unit analysis period, and will not introduce changes to the Additional Development and Upgrade Opportunities (ADUO) allowances.
The the governing body built a mechanism into 2026's new power unit regulations that would allow developments to any manufacturers determined to be a clear step behind the benchmark power unit. From the first analysis period that ran up to and included the Canadian Grand Prix this season, Red Bull was deemed to have the strongest internal combustion engine (ICE) performance, with all other manufacturers receiving some form of allowance.
Mercedes was adjudged to be closest to Red Bull’s ICE performance, so received one extra homologation in 2026 and another extra homologation opportunity in 2027 for being within 2-4% of the Red Bull standard.
Ferrari, Audi and Honda were all viewed as being more than 4% adrift of Red Bull’s ICE, and so each received two extra homologations this year, and a further two next year.
The second analysis period brought no change to those allocations, and the third and final period for 2026 – up to and including the United States Grand Prix – reaffirmed the FIA’s position. That means no additional homologations have been awarded beyond the first announced totals.
“The FIA has undertaken extensive analysis as part of the review of ADUO this year,” FIA director of single seater, Nikolas Tombazis, said. “Based on the quality of the data and the robustness of the assessment process, we are confident in our findings and the conclusions reached.
“The first year of implementation has also reinforced our belief that the ADUO concept is the right one for Formula 1. However, it is important that the system continues to evolve to ensure it remains efficient, relevant and fit for purpose. To that end, we have been working closely with the Power Unit Manufacturers and teams to explore refinements to the methodology that will support the continued effectiveness of ADUO in future seasons.”
Teams granted additional homologations also receive associated cost cap and dyno testing increases to make use of that allowance, but must use them in the year they correspond to. Should a manufacturer not re-homologate during 2026, its allowance is not added to its 2027 opportunities.
The next ADUO review period will start next year, covering the first six races of the 2027 season.
Chris Medland
While studying Sports Journalism at the University of Central Lancashire, Chris managed to talk his way into working at the British Grand Prix in 2008 and was retained for three years before joining ESPN F1 as Assistant Editor. After three further years at ESPN, a spell as F1 Editor at Crash Media Group was followed by the major task of launching F1i.com’s English-language website and running it as Editor. Present at every race since the start of 2014, he has continued building his freelance portfolio, working with international titles. As well as writing for RACER, his broadcast work includes television appearances on F1 TV and as a presenter and reporter on North America's live radio coverage on SiriusXM.
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