Mazda spare tire

I had a few looks at the Mazda 3 & 5 lines and found they didn't meet my
base requirements due to the inability to handle a full size spare.
The spare in the Mazda 5 is actually a bit silly, not adequate for even
urban use IMO. That 3rd row of tiny seats, which I have no use for,
takes up the space needed for a spare.
It's one thing to have a compact spare, but another for that spare to be
a smaller diameter than the mounted tires.

I'm wondering what Mazda does in those countries that require the spare
to match the mounted tires?