Well, since this question was almost tailor made for me, I think I will put in my $0.02.
I am very happy that I bought yellow. (period). I am with Akira3D when he says that Kaiser Silver was a favorite too. I think any body color that is also the wheel color looks VERY NICE. I think the NSX-R that was White with White wheels also looks nice. The Silvers looks epsecially good like that.
With that said, I just spent the whole day Friday swapping spots on the Race Track with a Fly Yellow Ferrari 360 Coupe. Even the not-so-humble Ferrari owner had to comment on how remarkable the metal flake was in the Spa Yellow paint scheme on the NSX.
The Ferrari paint job kind of just lays there.
I do have to admit that with my top on, the NSX-T in yellow can be a bit much. I think you will all agree that with the top out, it looks even better. I have not ever really been a fan of the black roofed coupes, but I can see that it really does pay hommage to the original design intent of the car and nicely breaks the lines.
I almost bought red or black, and even considered silver, but I am really glad that I bought yellow.
There is also less of a chance to see yourself coming and going.
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Gordon G. Miller, III
Y2K NSX #51 Yellow/Black