personally, if you mean the gallardo wheels, I would say S4 every time.
I usd to be all for highly modified looking cars, but as I've gotten older, I want to keep it looking like something a factory may have produced.
Also, much like you said, these are similar to my old TT rims. I loved the TT rims, but wasnt prepared to spend the money on new tyres and a refurb for the car to look NO different. I wanted to see a change for my £800!
The good thing is though, now there is no time pressure, I can take my time and refurb these myself at home, and my old michelins have a good bit of tread left, and are hard wearing, making them perfect for winter wheels! Once refurbed, the TT wheels wont look TOO different to these, so the appearence will stay similar.
I can understand why you like the way your car looks, I love mine at the moment
Also, I havn't noticed any real difference in ride comfort going to 40 profile tyres on the 18's.