The 35th anniversary wheels are 18x8Fr et 30 and 18x8.5Rr et 33. They also became the standard wheel in 2006. They go relatively cheap compared to the original track wheels in equal shape. The new larger sized track wheels are hideous, I love the look of the 35th wheels much better, I had 03-05 track wheels on my Z before I sold it, they looked great but the stupid dimples always annoyed me, the 35th's have no such dimples. I may be wrong on the offsets of the 35th but Im almost positive that they are the same size and offset as the 03-05 track wheels just not as light.
thats the track wheel specs btw, 35th specs inside... - 
