They rarely show the wheels which is the interesting area in my mind.
There is one photo of the Opel Calbra which shows for a split second the way air flows from the centre out toward the wheel at a steep angle which explains the placement of so may wheel spats.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.