The gun-metal wheels on the left are supposedly coming out for the Maxima

Judging from the picture they look like 19" or 20", since the bronze Nismo wheel that's beside it is 18".

source: http://www.nissanperformancemag.com/august05/rush/

 

if they're Nissan, they will be:

1. heavy as hell
2. expensive as hell.

that, and they don't look all that distinctive, to tell the truth...

for comparison, a set of the G35 18's I have, new from Infiniti dealer, is roughly $3200 (800/ea)....

 

Bronze 18's I wish I had the money.