The thing I noticed is that on an RT/10, the rear/trunk area of the car slopes down, which makes just about any wing you stick on there look great (an improvement.) On a GTS, the rear flips upward, so adding a wing, at least to me, looks kind of strange. I'm just not sure what it is.
I guess I am trying to find that look that when I see it, I am like, "Jesus, that is it! That looks bad ass."
I can honestly say that from a frontal angle of the car, most GTS's with wings look fantastic. From the rear, I just don't like it -- doesn't seem to flow. Know what I mean?
I think the wings should be organic in shape, i.e., no hard lines, as the car is all about curves. This is why the mopar and autoform wings for the RT/10 looks so nice -- they sit right on the rear of the car (not sticking up way high) and fit the curves of the car. The SVS wing has some of these curves for a GTS, but I really don't like the two straight supports.
The very last photo listed above shows some of what I am talking about, but it's hard to tell from that photo. It is all curvy and follows the lines of the car.
The wing design I choose will be more of a poser setup (for looks) than for function, as I don't plan on road coursing the GTS (I have my other car for that.)
Manny