Random thoughts from somebody whose black car days are basically behind him (does the Carbon Metallic on the Yukon count? I wouldn't think so..):
Souveran is the standard answer but if you have to think for even a moment about the cost then I sure wouldn't spend that kind of money on *any* wax. If you don't care about the cost and don't mind redoing it all the time, then try it just to see what it's all about. It *is* a unique product.
Meguiar's #26 has a very nice "classic carnauba wax" look on colors like black and it's cheap.
Zaino (oh-so-popular on black Impala SS cars) has a unique look that you'll either like or dislike, usually with little middle ground.
>90% of it is the paint's condition anyhow, so IMO the best wax for black is the one that's on a car that's basically marring-free day in, day out

If you have marring on a regular basis you might oughta have different concerns than which wax to use.
lazzman said:
...By the way I always remove fresh wax with a Zymol micro wipe, they are the best and will not strip away freshly applied wax like Microfiber clothes. You can also use a thick cotton terry towel.
Trust me microfiber strips off a lot of the fresh wax, I did detailed tests and proved it to myself. Just a suggestion... :werd:
Interesting. In my controlled testing, none of my buffing media made any difference in that regard, my plush MFs didn't cause any discernible differences compared to low/no-nap MF, cotton, or anything else (nor did machine vs. hand buffing in most, but not all, cases); but I didn't test the Zymol Micro Wipe. In what way are they different from other buffing media?