car is top notch and really, really cool ideas and execution... but have to agree about the wing. It doesn't fit well from a visual perspective. I think the notches look best with nothing back there, at most the "spoiler" built into the rear like the CA Specials.
That said, if the wing is a must, it might look better about a foot longer and higher up into clean air. My car for instance NEEDS a rear wing to stay planted on long sweepers above 120mph or so, meaning I have to have it (I would prefer the look of my car without the wing, just a spoiler as it is essentially a notch back

). I bought a wing wide enough to fit the width of the car + a couple inches, then put it up in the clean air and visually it looks best up there IMHO.
Love the Terlingua theme!