The wing was developed in CFD on and off the car to make sure we hit maxiumum efficiency. That is how we were able to have a wing that will produce 11.5 lbs of downforce for every 1 lb of drag.
The picture below is part of that CFD. This is an on car wing analysis that was done for optimization of the height of the wing from the trunk lid. The height is critical to verify clean air is interacting with the wing. Too low and we are not getting proper airflow and lose efficiency. Too high and we are getting unnecessary drag and a larger moment to change the aero balance of the car.
