I'm looking for a spare tire to throw into my trunk when I go on long trips. I was thinking of just hitting a junk yard. I'm assuming spare tires from cars other than the RX-8 will work. What size should I be asking for?

 

The spare is a T125 / 70 D 17 the rim needs to be 5 x 114.3 bolt pattern. If your going to a Junk Yard you might want to trace the OEM bolt pattern on a piece of paper.

 

i need to make a note of that .. btw proteges have the same pattern so you may find one in wrecked one

 

so do the 350z, should be the same height as well.