How Mercedes two-speed front wing could solve Ferrari’s aero issues. Mercedes’ innovative two-speed front wing may help Ferrari fix its aerodynamic imbalance.

For the Japanese Grand Prix, a new technical debate has emerged in the paddock. Mercedes’ two-speed front wing, which closes in two distinct phases—an initial faster movement followed by a slower final motion—appears to provide drivers with improved feel during braking and corner entry.

Recent reports suggest that Ferrari has already sought clarification from the FIA regarding the wing’s operation. While initially this might seem like a standard legality check, there is reason to believe that Ferrari could actually benefit from the Mercedes solution, as it may help address a persistent aerodynamic problem on the SF-26.

Could Mercedes’ two-speed wing stabilize Ferrari?

During the China Grand Prix, Lewis Hamilton and Charles Leclerc got a firsthand look at the behavior of Ferrari’s so-called “Macarena” rear wing. Unfortunately, the system still created significant instability, and after Hamilton spun during FP1, the team decided to postpone its full deployment for qualifying and the race while improvements were made.

There are two main theories about the source of instability. The first attributes it solely to the rotation of the “Macarena” rear wing during closure. The transition phase, near the FIA-mandated 400 milliseconds, creates a brief period in which the airflow around the car is unstable. After the flap closes, it takes a moment for the airflow to settle into a stable configuration, which is why drivers were instructed to close the wing slightly earlier than usual during braking.

The second theory suggests that the instability may arise from asynchrony between the front and rear movable wings. The front flap closes before the “Macarena,” causing aerodynamic load to shift suddenly to the front. This lifts the rear for a brief moment, potentially deceiving the driver and resulting in a loss of rear-end control.

Ferrari could benefit from Mercedes’ design

If Ferrari could adopt a front flap that closes more slowly than current standards, it might resolve the asynchrony caused by the “Macarena” rear wing. Instead of trying to speed up the rear flap’s rotation, Ferrari could potentially use the Mercedes two-speed front wing concept to delay front closure and achieve a new aerodynamic balance. By coordinating the timing between the front flap and the “Macarena,” the SF-26 might finally handle more predictably in high-stress corners.

This leads to an interesting hypothesis: Ferrari’s inquiry to the FIA may not have been motivated solely by legality concerns. Instead, it could have been aimed at understanding the Mercedes two-speed wing better, with a view to replicating its principles. If so, Ferrari would not be opposing Mercedes’ design—it could very well welcome the innovation.

TRe 2026 aero war at Suzuka is therefore becoming a game of timing and synchronization. Based on the content of Ferrari’s recent technical struggles, the “two-phase” wing might be the missing piece of the puzzle for the SF-26’s high-speed stability.