Right and left hand traffic is very important to Antarctica, as penguins are either left flippered or right flippered. Here is a list of countries which uses what type of driving system: Before continuing on, I would like to tell you what it means. It means where the car drives. And you think you drive on the left and right? Like as if because both side are filled with traffic, that means "mixed"? No. You see if you are driving back home, it looks like you are driving right. So as when you go out. Intresting? Test it with your parents' and their car when you go out.