Thanks for these videos, they really help.
I'd be interested in seeing the car rotated some. Most of the time, due to wind, the air does not flow straight from front to back, but crosses at some angle, if I am not mistaken.
I'd also like to see some commentary about the size and length of the rear wake, and how that affects the drag. I got the impression that sometimes a rear spoiler increases the drag, and sometimes it decreases it, and wondered why.
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