[fuddman]

Frankly, the more time I spend looking at these mules, the less excited I get about the design.

I don't see any design "visual cues" that were supposed to be taken from the Vision GT. Sure there is the camo to contend with, but the outline of the car is visible from all angles. And there aren't any positions on the mules body which suggest a hidden surprise. A new vent hole in the rear bumper, to me, isn't that big a deal.
What I do see when I look at all the mules is an M2 which has taken it's design cues from the M235i racing and not the Vision GT. In the end, the M2 being a quasi M235i racing. That's not a bad thing, the M235i racing is a nice looking car. But that's all.
From a design standpoint, the promises of the past year or so, to me, don't seem like they are going to materialize; so, I'm recalibrating my enthusiasm.