The market for these will be for a particular looking Zed . . anything that standard-ish looking just would not suit it. Agreed that they might look much better on a black car . . of have the vortex colour coded.
Are you trying to tell us you have a Nissan garage that can understand what you want. Mine doesn't have a clue even if i draw pictures.
No, but they should understand "can you undo my locking wheel nut as I have lost my thingumabob"