This is a picture of the used set of wheels I'm thinking of buying. Front is 18", rear is 19" and originally came on a Japan spec 350Z. The wheels themselves are immaculate but its Nissan center caps are in tarnished are fugly.

Does anyone know where I can buy the 'Z' center caps that will match these wheels in size AND colour? I saw some on courtesyparts.com but I cant figure out the Track/Non-Track options. Also courtesyparts have 2 color options; chrome and non-chrome......but these wheels seem kinda in-between. If there aren't any matching Z center caps, then any other non-Nissan cap recommendations will also be appreciated.

+++++++++++++++++
This is a repost of a sub-question I raised in a previous thread. Starting a new-thread to get some attention/help :-)
+++++++++++++++++

 

What year Z did these come off of?

 

I wish I knew :-(
I'm buying them used from a friend of a friend of a friend who has since left town.

 

Most likely a Grand Touring HR.