Black Chrome is a finish that Micron used to offer on some of their systems, in particular, the Micralloy and Micron Hy-power versions asross the model board and on all Micron GP systems - excluding the cans that is.
It was a hard, high quality finish that looked a bit like a pearised racing green or very (very) dark green. I think the closest colour I've seen any vehicle painted in this sort of colour is my company Ford Focus in some sort of Pearl Black.
I don't know but I think the finish itself was applied in a similar way to Chrome or Nickle plating so if its on wheels then it's unlikely to be true 'Black Chrome'.
Easiest way would be to use a celly or synthetic black and blow a Pearliser over the top of it.
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