I had white on my S4 and that is still a great color. I always wanted one of the blues from BMW, as I feel they produce the best blue colors on the market. I went with Le Mans blue and it is truly stunning. I love the color. It might take a little more care to keep up, but it is worth it. Something like that possible metallic Laguna Seca blue that was mentioned in the past (Yas Marina Blue) might really look good and sway my opinion.