Up front, a twin-profile spoiler and larger splitter sits 30 mm lower with a gap in the center and vertical fins that sends air over the flanks. A monster diffuser sits at the rear optimizing air extraction from the underbody, while the tail section is now higher and mobile spoiler extended further. The most obvious visual change is the vertical fin and small wing on each end of the tail. These act as guide vanes when the rear spoiler is retracted and boosts the spoiler's efficiency in 'high downforce' mode. The result of all these changes is 50 percent more downforce than the LaFerrari with the FXX K generating 540 kg at 124 mph.