@ BrokenLinkage:
Sorry, but you are wrong. The showed wheels are SportDesign (I) not SportDesign (II). For SportDesign (1) rims there was a "pinted face", option from Porsche available on request. No Porsche code - like individual external color. So this was a little bit expensive; just a little bit.
The rims were used as stock wheels for the Porsche GT3 MK1. Later on the rims were available as an option for 986/996 cars.
SportDesign II is a completely different rim.