BTW, the whole point of the airfoil shape on a wing (or winglet) on these puppies is to accelerate the airflow underneath (vs. the flow speed over the top), and thus create a low pressure area that will pull the wing down. In the photo, the low pressure area seems to flow right into the radiator intake, which would seem largely to negate any potential benefit. But I'm sure Eddie's aerodynamicist makes more than I do, so I'm obviously missing something....
