For occasions when you might find yourself without roadside assistance, and with a completely blown tire, or irreparable damage to your tire’s sidewall, a space-saver or compact tire may be the answer. These tires allow you to drive home or to a local repair shop to purchase a new tire. You can only drive a short distance, and usually not faster than 50 miles per hour. Some automakers that don’t include a compact or space-saver spare tire with their passenger cars allow you to purchase one as an add-on. Check with your local dealer to get information on how/where to buy one for your particular car.