If the 18 inch OEMs come with the tire & performance pakage and it only costs 600 bucks when you order the car, why 1100 per wheel posts or 2000 ebay prices <url>http://g35accessories.com/used_wheels.htm </url>shows that they will buy em for 155 *4 = 600 bucks and brand new tires got for 270 a piece that still less than 1800 for tires and wheels

they sell new ones for 574 apiece that would be 3200 for all new expect 1600 wholsale maybe 2200 for retail but not 1100 a piece

 

$600 extra is probably the difference in cost from the 17" wheels/tires and 18" wheels and tires.

When you pay the $600 its not like you keep the stock 17" and in addtion they give you the 18's for $600...