I have a "double whammy"! My new RV did not come with a spare and my Miata towed car did not come with a spare. A jack and handle yes, but no wheel or tire.
Because we are often well out of cell phone range, one of the first things I did was to buy a Mazda RX7 donut for use as a spare.

It fits VERY "snugly" in the trunk, but guess what? IF I had a flat on the Miata, the flat tire that I took off the car is too big to fit into the trunk.
That is one of the reasons that I also have a trunk mounted luggage rack.
Now, at least if we do have touble, we have at least one drivable vehicle.
Tim
