I'm sure you will get as many opinions here as there are reasons for liking or hating the delta wing.
I don't know if the factory did any testing. I'd assume it was a cosmetic upgrade following the Countach.
Anyhow, from personal experience I would expect that the wing just adds drag until you get to speeds over 100 mph. I have noticed the car squat down at very high speeds and expect that's when it works. Most Pantera race cars have a different type of wing. I don't know of many that use the original delta wing for racing.
Where are you located in Ontario? Do you own a Pantera? Looking for one? Building one?
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