In the 2024 Formula 1 season, McLaren introduced an innovative rear wing design that became the center of a significant controversy. Dubbed the ‘mini-DRS,’ this design featured a flexible upper element that, under high-speed conditions, would slightly open the slot gap, effectively reducing aerodynamic drag and providing a speed advantage akin to the Drag Reduction System (DRS). This mechanism was notably observed during Oscar Piastri’s victory at the Azerbaijan Grand Prix, where the rear wing’s behavior raised questions among rival teams and fans alike.
Despite the rear wing passing all FIA-mandated static load and deflection tests, teams such as Red Bull and Ferrari challenged its legality, arguing that the dynamic behavior of the wing contravened the sport’s technical regulations. In response to these concerns, the FIA engaged in discussions with McLaren, leading to the team’s agreement to modify the rear wing design ahead of the Singapore Grand Prix. Team Principal Andrea Stella addressed the situation, suggesting that the controversy served as a distraction for competitors, allowing McLaren to focus on performance improvements.
The FIA took further action by amending the technical regulations for the 2025 season to prevent similar controversies. The updated rules specify stricter requirements for rear wing slot gaps and explicitly define acceptable aerodynamic behaviors, effectively outlawing designs that mimic the ‘mini-DRS’ effect. These changes aim to ensure a level playing field and maintain the integrity of the sport’s technical standards.
Reflecting on the episode, McLaren’s technical director expressed a sense of pride, viewing the controversy as evidence of the team’s innovative capabilities and
