banana vents
on Dr. Morelli's CNR "banana" car,he did "vent" the rear bumper,however,the air was taken from BELOW the bellypan diffuser and allowed to communicate with the wake,via a series of slots between the back of the car and bumper fascia.
My guess,is that this was one of the "zero-lift" aspects of that car.
The important thing,is that he never allowed air into the "under-carriage,always keeping it below the pan.
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