I must say that the M-B paint is different (read: Better) than on my BMW's. I'm in the process of doing a ground-up detail on my new M-B, and, so far, the results are fascinating.
I'm using the same products (KAIO, KSG+Polycharger x2) and it looked deeper just with these steps. I've now added Danase Wet Glaze on the KSG and got the :wow: factor. (Compared to the BMW w/ same process/products)
So I thought the difference on a black BMW vs. black Merc, must be the paint. I did some research and came across this article.
(Not to hijack, but...) Now my problem is what to top the Danase Wet Glaze with. My options are another layer of KSG w/ PolyCharger, P21S, or Souveran. I want to preserve the look of WetGlaze and add durability)
I might go crazy and do another KSG, then another Wet Glaze, then Carnauba... Hmmm...