Thanks, but I am not sure I get this. Moving some air around the wheel from close to the centre line would create a lower pressure area between the wheel and body would it not, and would this not tend to pull the wheel wake further in ? I could understand it if you tell me that the central front underbody area of this car inside the wheels is incredibly sensitive to turbulent wake and needs to be protected from this as much as possible, perhaps.
A comparison with the mercedes wing. It appears to me (I hope I am not being fooled by perspective effects) that the FI wing starts moving air to the outside from closer to the centre. What design objective would make this preferred ?