I have a set of the optional 18" chrome wheels from a 2006 Nissan 350z Touring model. They are in great shape, with only minor scratches on one wheel (shown in pictures). There is no curb rash. The wheels and tires have less than 1,000 miles on them. They are Bridgestone Potenza 040's, front I believe are 225/45/18, and rears are 245/45/18. Email me at Ryan43c300zx@Yahoo.com if interested.
Make a reasonable offer and they are yours, I do not have a set price but I would like to get around $1k+shipping, but I will accept the best offer. This is a fair price considering the tires alone sell for $199 each for the rears and $179 each for the fronts from tirerack.com
2006 Nissan 350z Optional Chrome Wheels - 
