they are called design 90's and were on 944 and a lot of 964 shape porker 911's.
they never looked like that on a Porsche tho! they were normal grey type alloy finish. this is the big fashion in dub land at them moment, polishing up these kind of wheels.
you often see them for sale on pvw classifieds or you could give neil @
DUB CLUB RACING a ring 029 207 95 207 or 07984068057 and tell him your favourite vw site sent you

remember you need 200 quids worth of hub adapters to fit Porsche wheels on your dub