This is very common in smaller vehicles, and anywhere economy is the driving factor. These compact temporary spares have nowhere near the performance characteristics of a full size tire. Indeed, you will likely see some type of warning on it to limit speed to below 50 mph. In America, and in places where service centers may be few and far between, full size spares are common. Most work trucks, jeeps, large passenger vans, and luxury automobiles come with full size spares. There are two different ways to run a full size spare. You can get a steel one, or get and alloy one that matches the rims on your other wheels. The latter option allows you to work your spare into your tire rotation pattern, which is the way I prefer to operate my vehicles. That way I know that my spare is ready to roll if I need it. When I purchased my Toyota Sequoia, it came with a full size alloy spare. As with any emergency equipment, you will need to periodically check your spare to make sure it is in operational condition. I have come across a few stranded motorists, in my time, with a flat spare tire.