I hate to be a wet blanket; but I think that both configurations of the scoops are neither attractive nor
efficiently-designed to smoothly duct air down into the compartment. Couple that with the idea
that they would be forcing air in opposite to the designed flow path & I'd say its "style" over substance.
Remember that the air under the car is pressurized, and that's why GM used the top vents as exits.
Don