As far as I regard the rules concerning brakeducts (see below), I think they don't limit Teams on introducing a limited size wheelcover. I painted a little side view on how I think the rules restrict Bodywork in this area and in blue a "wheelcover" as I would expect it. What do you think of it?
11.4 Air ducts :
Air ducts around the front and rear brakes will be considered part of the braking system and shall not
protrude beyond :
- a plane parallel to the ground situated at a distance of 160mm above the horizontal centre line of the
wheel ;
- a plane parallel to the ground situated at a distance of 160mm below the horizontal centre line of the
wheel ;
- a vertical plane parallel to the inner face of the wheel rim and displaced from it by 120mm toward the
centre line of the car.
Furthermore, when viewed from the side the ducts must not protrude forwards beyond the periphery of the
tyre or backwards beyond the wheel rim.
All measurements will be made with the wheel held in a vertical position.