Pag black market, ibig sabihin totally illegal yung binebenta, without a shadow of doubt. Pero pag gray market, the items for sale (in this case, the imported cars) aren't necessarily illegal per se, but the methods by which they are brought into the country tend to be, shall we say, questionable, to say the least. Though not to say that all privately imported cars in the country were brought in by less than perfectly legal means.