We've got a set of Rinspeed C5s in stock for a 997 Turbo or C4S fitment:

Front: 20x8.5 ET50

Rear: 20x12 ET50

Finish: Brilliant Silver

MSRP for these is $4995, but we'd be willing to let this first set go for $4495. We could also powdercoat them in a custom color for additional $100 per wheel ($400/set), with a lifetime warranty on the powdercoat.

Here are some pics of the actual wheels:






And how they look on a 997 Turbo:




Let me know if you have any questions!