Still driving mine at 78,000 miles.
Bought in Feb, 2005. Build date Aug, 2004.
No major repairs yet. Just scheduled maintenance stuff.
Cobb Stage 1 at 5,000 miles and full synthetic oil changes since then.
Maybe because they look similar to the Porsche Cayman OEM 67341 Wheel?
http://originalwheel.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/p/o/porsche-cayman-wheels-67341a-b.jpg