I see Aerohead, completely undaunted, is back to spreading his misconceptions about his beloved template. Here's video I did on that subject a month or so ago.
(If you wish to comment, please watch the entire video, including the citing of five
completely differently shaped low-drag templates.)
Using Aerohead's template as the guide in aerodynamic car modification and assessment is, unfortunately, quite absurd.
If only it were that simple!