There are tons of different price ranges, espeially for wheels. I sell wheels that range in price from $400 to $1700 per wheel and everything in between. As for tires, you are looking probably in the mid $400 range for each rear and low $300 range for each front. What budget do you think you would be working with for wheels & tires?

Wow they fit fine. Nice to know. I was thinking about putting some wide rims when I get a 370z. But I would go for the 19's. How much would something like that cost? If you can give me a ball park figure of the rims and tires. I know it will be pretty expensive for a pair of rubbers that are that wide.

No, those 18s were from my time attack 350Z. I just put them on the 370Z to see if they fit. I still have the stock 19s on my 370Z. The 315s did not need spacers though to answer your question.

I was wondering did you need to get spacers when you put on the 315's?
I also wanted to know why you went from 19's to 18's on the wider tire? Was it because it won't fit with the 19's when the tires are that wide?