My 2 cents worth with regards to dash paint... when doing both 300F and 300G dahsboards, we took off a sample piece each of the dark grey ( for both cars) and also the tan ( for 300F) and had them color-matched by The Prophet, which my local auto body supply house uses. Then the choice was, what type of paint to use ? single-stage, as Russ suggested, or base / clear? I have learned never to argue with my bodyman, Walt the Reprobate, because : A/ I always lose and B/ he does what he wants anyway and C/ it always comes out great so why should I argue ? Anyway, Walt elected to use base / clear PPG Deltron. Two coats of base were sprayed on and then two coats of clear, but with flattening agent added in to give the correct semi-gloss finish. I've compared the results with an original dash , and, other than having fresh paint on the restored dash, there is no difference in degree of gloss or color. Looks good to me. I think what really matters here is the "taste" and proficiency with any specific type of paint that whatever person will be using. Today's paints have come a long way, baby, and one can achieve virtually the same results with base/clear versus a single-stage urethane. All that matters is the preference. And, of course, what is available locally, but usually both types are. I forget exactly why, but when we restored my blue 300L, Walt elected to paint the door jams, engine compartment, and inside the trunk with single-stage urethane, and then painted the outer body with base/clear ! I guess, as far as outside body paint, single-stage will achieve a result closer to the original acrylic enamel, whereas a wet-sanded and buffed out base/clear will achieve a degree of depth and gloss greater than the single-stage urethane - and even further removed from original factory look. But like I said, it's just my 2 cents' worth... John