I own a couple of Porsches and trade Porsches. Member of PCA and do events and so forth with PCA Membership. I don't recall ever seeing a Porsche with POR on it. But then again when you get right down to it Porsches are not high end to some folks. It's all relative to what someone considers "high end cars."

I view POR on guns as an attempt to take advantage of an unsuspecting customer.