Reply to "Elephant Ears"

A few notes on side scoops on the Pantera:
the sow-moving boundary layer of air along a Panteras side is at least 2" thick, so small tasteful scoops do literally nothing. This can be crudely checked by wetting a finger and slowly inching it out the rear of a rolled-down window. My finger is extended a good 2" out a stock-bodied L model before evaporative cooling is felt on my finger tip
The large elephant-ears do reach out & grab some air, but due to the massive airflow from under the car out the back window, ANY scoop will be overwhelmed unless its ducted to wherever you wish to apply the extra air.
At 160 mph, elephant ears grab enough air to rip the whole chrome frame, with the ears, completely off D Antenucci's car at a SS event. The lost frame cost him over $100 used and there aren't many around.... no word on the cost of a replacement ear-scoop.
Big scoops obviously add some overall drag to the car much as a wing does, so one ought to have a clear idea of what you're trying for, before adding them