Red Bull is continuing to contest the controversial ADUO ruling with the FIA.

      Red Bull has announced that it is still working to contest the FIA's controversial ADUO engine evaluation, asserting that the governing body is ongoing with its assessment of the data. The ADUO system has become a significant point of discussion in Formula 1, as Red Bull-Ford was determined to have the most powerful combustion engine, placing competitors like Ferrari, Audi, Honda, and even Mercedes in a position to pursue varying levels of further development. Team principal Laurent Mekies indicated that the situation remains unresolved.

      "We have been engaging in very productive discussions with the FIA since then," he stated, commenting on the team's surprise at being recognized as having the strongest engine in the field. "They are conducting a review, and we are exchanging as much data as we can to ensure they receive an accurate and complete picture."

      "As you mentioned, we not only have a different perspective on this result, but it also carries significant implications for both this year and the next. Therefore, it is crucial, above all for the sport, that we arrive at the correct conclusion."

      "For Red Bull Racing, the consequences of being on one side or the other are considerable." The FIA has not yet publicly confirmed the final ADUO rankings, prompting speculation that the initial evaluations might still be tentative and could be reexamined at the Hungarian GP, the last race before the summer break.

      Audi chief Mattia Binotto emphasized that the FIA's evaluation focuses solely on combustion engine performance and does not take into account the overall power unit. "It doesn’t pertain to energy management or the efficiency of the electrical system," he remarked. "It’s purely about engine power."

      "If you’ve been rated as having less engine power, your primary focus should be on improving engine performance." He pointed out that there are certainly efficiencies to be found in batteries, inverters, and turbo sizing that affect drivability and trade-offs on the track. However, regarding the ADUO, the assessment pertains to the gap in pure engine power.

      Mercedes team principal Toto Wolff concurred. "It’s about internal combustion engine performance, as Mattia stated," he said. "It’s fairly straightforward to analyze."

      "You can determine how much power you are generating from the ICE. Being at a disadvantage is certainly challenging for us." Nonetheless, there are rumors in the paddock suggesting that Mercedes might postpone using its own ADUO allocation for the time being, despite qualifying for the concession.