That's a very interesting set of skirts. Obviously some sort of 4-bar hinge arrangement. I wonder where the upper bar[s] is/are. One in the middle would impact the top of the tire. The reason why I'm interested is that once my panel van is on the road, I'd want to make a front fender skirt that uses 4-bars for it. It would look like this:
Of course, not being Photoshpped, it would fit more like the Alfa's.