Don't know about the driving test, but I have friends in Sweden I could ask. (I can say that if you move to Finland with a US license, you can exchange it for a Finnish one; I know an American who did that.) I also know someone who lived in Switzerland but now is in Germany; however, she drove there, so she might know. It makes sense. I always wanted to take one of those ice-driving courses in Colorado and regret that I never got around to it.