Thats what I thought about the tire size, but if you go to the Miata site shown and change just the width, it also changes the height. Also try playing around with the other site:
http://www.sporttruckdirect.com/
this one does something similar too. Whats the deal with that?
Ohh well I guess Ill probly stick with these pacemarks, I can get them for $90 something a piece and they are good tires, just not cool tread

I plan to sell these wheels later and get some 16's or 17's. Wheels are just too damn expensive.