Tire machines.
I have few sets of 13" tires and wheels for a project I'm working on. Went to 1/2 dozen shops & nobody could dismount the tires.
One shop suggested a place about 10 miles away. Took a couple tires to them yesterday.... no problem.
They had this..Hunter Revolution
Guy said costs them $38k.
I busted tires in high school on a Coats 20-20. I looked on Ebay they are $20k used if you want one for your own use.

For a Coats 20-20 ??

i have been looking at a couple of those blue, chinesium, tire changer/balancer packages for 2k or less.
yeah, i know, they are what they are..........
but after talking to a couple of guys that have used them, and as much as i play "tire roulette", they have told me i won't wear them out in my lifetime i have left, and they are WAY better than my manual changing machine i designed and built so many, many years ago.
although i have changed a huge amount of tires over the years with my machine, and it works well with everything i have used it for from wheelbarrow tires to 40" mudder's, it just beats me bad these last years because of the effort it takes that my old bones and azz just doesn't have these days........

Tried but can't "quote" the picture...

Those look like they'll bolt on my 1998 Mini Cooper, what are they for?

John- Sorry $20k for the Hunter not a Coats 20-20. A 20-20 is $200

Panasport Lightweight race wheels with 4x114.3 bolt pattern for a Datsun 510. I am trying to make a vintage B-sedan race car.
I think Panaport does make wheels for a mini. They are just a copy of Minilites
I have Minilites on my street 510.

The Hunter Revolution is a badass piece of machinery. We have one at work and have yet to find a tire/wheel assembly it can't handle with very little input from the operator. Once you show the machine where the TPMS is it takes care of the rest! Did the 40 series 19s on the wifes daily without breaking a sweat!

The Mini is 4-on-4" (101.6). It's got factory 13x6 Minilights on it, but the spare is a 12" wheel. When I was in England, I had a Mini van, and I had a set of 5x10 (YES 5" wide by 10" diameter) aluminum slots on it. Cute little things...

Hard to believe anyone with a rim-clamp type machine wouldn't be able to change a 13" tire, I did the ones for the Mini on a standard machine that would do anything from 8" mower steer tires up to 20" patrol car wheels.

I talked with the guy who did my work. He said the only wheel/tire the machine has trouble with is a Nissan GTR.
They charge $160 each tire for GTRs so $640 to mount a new set sneakers for your ride. BMW Z4s are a bit of a pain.

My Hunter machine would do them. Bought it for 650 bux and works good. I think it will do 12 - 20 inch.