My friends and I will be heading to Europe next summer. On our itinerary, we are scheduled to travel from Frankfurt to Munich. I think it would be a good idea to travel this route by car (autobhan) instead of train to experience the autobahn for ourselves and to get a break from trains.
That being said, what does an American need to do to be certified/able to rent a car in Germany? Also, the high speed limit of the autobhan obviously is one thing we want to safely enjoy (being 22 year olds), but is it worth it?