I've seen the aftermarket ones, not an exact size match....but is nissan planning on making any all weather mats for the Z? (that are the EXACT same size of the regular factory mats).

 

the only thing i saw was on the nissan japan website. it wasnt rubber either. it was a different type of heavy duty fabric with an extra durable area for the heel. not what you were looking for i know... besides, it is backwards. seems like you might have to go aftermarket. did you check out:
www.autosportcatalog.com
www.carcover.com

they have a few that seem pretty good. no logo though. anyways, good luck with your search.

gary