I'm looking at the rear of the vehicle, I imagine the A-Pillar vorticies have already done their damage and are decomposing, it's more the C-Pillar vorticies that I was referring to which rotate in the opposite direction to the A-Pillar ones.
So the question really is if the rate of change is reduced in centre of roof line and lower sides, can this compensate for the more rapid change coming down and in from the corners and hence reduce risk of C-Pillar vorticies.
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