\n<\/p>\n
A statement from the FIA said that Mercedes were “determined to be in the 2-4% window” (behind the best internal combustion engine), while Audi, Ferrari and Honda were all determined to be “above 4%”.<\/p>\n
That means Mercedes are allowed one additional upgrade in 2026 and one in 2027, and the other manufacturers, bar Red Bull, two.<\/p>\n
Mercedes have won eight of this season’s 12 races so far, and Red Bull, who set up a new engine design and manufacturing facility to produce an engine for this year’s new rules, none.<\/p>\n
Nikolas Tombazis, FIA director of single-seaters, said: “The FIA has undertaken thorough and exhaustive analysis as part of our Aduo review process.<\/p>\n
“With the release of the findings of period two, we are confident that, based on the quality of the data, its analysis is incredibly robust, giving us a high level of confidence in our findings.<\/p>\n
“We also have to respect the confidentiality and intellectual property of the teams and their power-unit manufacturers in disseminating any details from the findings.<\/p>\n
“This is the first year of Aduo so naturally there are areas which we may evolve over time, in discussion with all the power unit manufacturers.”<\/p>\n<\/div>\n