Thats odd, if that photo is correct, that is the same tire as the Mickey Thompson Street Radial II... one of the tires I was looking at, also available in the same specs.
Ya I would love that 345/35/18 but I dont think it will fit. Whenever my 18x12 wheels get here I will probably give them a shot because a local wholesaler of mine carries them. I will try my best to figure out if I can fit them without having to mount them to the wheel so that I can exchange them if not.
look here for more detailed specs on the MT SRII
Mickey Thompson Performance Tires & Wheels
It sucks that they do not have a 335... they do have a 305/35/18 and the diameter is perfect for the 370z for normal use but the width is just typical for a 305 tire and I know we can fit more. They have a 315/30/18 but its diameter sucks and its narrow sidewall pulls the tread in too much and its less wide than the 305/35/18.
I really do want that 345/35/18. i think the diameter could fit, i think the width could fit, but i doubt they will fit at the same time. So I might have to decide if I think the MT SRII in the 305/35/18 will perform better for me than a different drag radial in a better size (335/35/18). I am pretty sure the BFG DRs come that size, and probably the Nitto DR as well.