Audi questions the advantage of Mercedes ADUO.

      Audi's CEO Mattia Binotto has raised doubts about whether Mercedes strategically positioned itself to take advantage of Formula 1’s contentious ADUO engine concession system. According to the FIA’s Additional Development and Upgrade Opportunities regulations, manufacturers that are not performing at the level of the leading engine are allowed extra development opportunities to narrow the performance disparity. Following the FIA’s evaluation, Red Bull-Ford has been identified as having the top combustion engine, which grants competitors like Mercedes, Ferrari, Honda, and Audi varied degrees of ADUO support.

      "Everyone recognized that Red Bull has a strong engine, but Mercedes's is certainly not lacking," Binotto stated to f1-insider.com. "Perhaps they haven't fully utilized its potential due to reliability issues or other factors, as they have skillfully secured this ADUO benefit." He also expressed skepticism regarding the concession system itself. "Having an advantage means there’s little incentive to continue pushing forward," Binotto remarked. "That’s the limit of the current regulations." He proposed that additional upgrades should be allocated based on a ranking system akin to that used for chassis.

      Audi has already implemented its first allowed ADUO upgrades, which included updated hardware at Barcelona focused on a new turbocharger aimed at enhancing drivability. Nevertheless, Audi's racing director Allan McNish hinted that the second upgrade might not be ready until next season. "We understand our position," he said to Auto Motor und Sport. "Our initial power unit has proven to be quite robust, and early issues have now been resolved. Changes like the one in Barcelona are minor but significant." Regarding the next ADUO step, he added: "Most likely, the next substantial improvement won’t occur until 2027."

      Honda seems to be adopting a similarly cautious stance despite qualifying for two ADUO upgrades this year. "We concentrated on integrating several updates," Honda's chief race engineer Shintaro Orihara commented on the first package. "After the summer break, we will pursue a different strategy for next year." He added that instead of implementing minor updates frequently, they have devised a long-term plan to enhance their performance. Until then, Orihara stated, "We need to continue refining our strategy before introducing a new power unit."

      Partner team Aston Martin is also avoiding the urge to follow rivals who are rolling out frequent updates and is instead adhering to Adrian Newey’s approach of waiting for a more significant package later in the season. "I have enough responsibilities with our own team, so I don’t focus much on what others are doing," team principal Mike Krack shared. "If they keep developing at this rate, we all know we’ll eventually need to start anew with a different car. But once again, I’m uncertain about the strategies of other teams." Krack conceded that the anticipation for Aston Martin’s next major upgrade is "purely psychological." "We’re at 80 or 90 percent of our performance compared to the others; we’re not too far behind. Let's just say there's light at the end of the tunnel."

      "We’ll navigate the next two races with our current setup. Naturally, I’m disappointed, but this is the choice we made."