Tapers vary. IIIRC Honda’s lug nut tapers (for example) have a convex rounding, and the rim’s stud openings have a corresponding concave taper.
Thank you for the detailed response. For cost reasons, I'd like to find the correct match at a junk yard off a relatively new 23-25 vehicle. I know our 2012 Prius's spare was still quite usable at 12 years because I picked up a nail in 2024 and had to mount the spare! Now the question is to try to determine if any of the cars I listed in my original post matches the requirements for a hub size of 60mm/60.1mm, and an overall tire diameter of approx 26.4". Let's see if Google can be my friend....
After having several flats last year, I won't buy a car without having a spare. The roads are only going to get worse, at least here where I live. Taxes for road and bridge repair has been a flat rate that hasn't changed since the 80's. And in case you haven't noticed, there has been a bit of inflation since then, so the same 40 cents from every gallon doesn't buy as much asphalt and gravel as it used to.
