Max Verstappen has expressed concerns regarding the performance of Red Bull's F1 power unit compared to Mercedes, particularly after the Italian Grand Prix where he finished third. He noted a significant discrepancy in engine efficiency, stating that Red Bull struggles with energy deployment relative to Mercedes, which he likened to feeling like a 'turtle' during the race.
Verstappen's comments followed the FIA's announcement that Red Bull had the best engine according to the Additional Development and Upgrade Opportunities (ADUO) rankings. He emphasized that the FIA's assessment only considers the internal combustion engine and not the battery performance, suggesting that Red Bull may excel in one area while lagging in another. Ongoing discussions with the FIA aim to clarify these performance metrics.