I can help on this one.
They are ROH Wheels - from Australia.
Try:
ROH website - look 2/3 of the way down, called "ZS style"
They are not expensive here, but might be in the US. Standard price is about A$275 for 16x7" (about US$140).
Simmons are also Australian and, imo, purdier.
Try also:
http://www.jdwheels.com/porsche.htm
http://www.groupawheels.com
Cam
[This message has been edited by CamB (edited 06-26-2001).]