[bobcowan]

Fortunately, flat tires are not common. Kinda rare, actually. I carry a plug kit, compressor, and AAA card.

A space saver spare can be somewhat difficult. Getting the right diameter and shouldn't be too hard. But you also have to find a wheel big enough to fit over your rotors and calipers.

It takes up a lot of limited trunk space, too. First you have to find a spot for the space saver. Then, you have to find space for the flat tire.