McLaren has publicly stated these upgrades are "significant," a term that carries weight in Formula 1 given the constant, incremental nature of development. The package will be rolled out over two critical races: the Belgian Grand Prix and the Hungarian Grand Prix, which form a back-to-back before the sport's mandatory summer shutdown. While some elements may appear at Spa, the team's technical director, Neil Houldey, has already suggested the "bigger step" is reserved for Hungary. This implies that the full impact of McLaren's new development direction might only be visible after the Budapest race.
Reports suggest that the upgrades could include a new rear wing design and potentially updates to the Mercedes-supplied ICE (Internal Combustion Engine) unit. The mention of an "unmissable upside-down rear wing" being trialled by other teams, which McLaren may also adopt, points to aerodynamic revisions aimed at improving downforce and efficiency. The "redirected upgrade approach" confirmed by Andrea Stella indicates a strategic shift in how McLaren identifies and implements performance gains, moving beyond previous development paths that may not have yielded the desired results. This new direction could focus on specific areas of the car's performance envelope, perhaps addressing fundamental balance issues or aerodynamic inefficiencies that have hampered the MCL38 throughout the season. The expectation is that these changes, particularly those in Hungary, should provide a clearer picture of McLaren's true potential for the second half of the 2026 season.
