In the US some cars just have run flats. But the common case is to just have a donut spare even in cars that can theoretically go off-roading. I suppose the log

In the US some cars just have run flats. But the common case is to just have a donut spare even in cars that can theoretically go off-roading. I suppose the logic is a full size spare takes a lot of room and there are a lot of things that can go wrong beyond a flat and people who use their cars off-road will outfit as needed.