True, it looks like the International Ford Focus should be a separate model from the US/Canada Ford Focus. I think that would be a cleaner way to separate them for comparison.
Since people can add custom models here, someone could add "Focus (Int.)" to the list of Ford models to start a new branch.
We do track members' home countries if they decide to share it. So it would be possible to place a country flag on the list of some vehicles while browsing based on where the owner lives. But if a car is really a completely different model and only shares the name, I think starting a separate model in the system is the best way to track that.