My mom and I will be going to Germany/Austria from July 19 (arrive the 20th)-August 4. Plane tickets are already bought to fly into Munich and out of Vienna so that can't change but everything else is loose right now in terms of itinerary. The general plan is 2-3 days Munich, 3-4 days greater Bavaria, and then on to Salzburg.
We were planning to obtain a rental car so we can do things at our own pace and not worry so much about public transport, with the exception of Munich and Vienna, where we'll just walk/use public transport to get around.
So to that end... how steep are the international drop off fees if we decided to rent a car in Germany and drop in Austria. Money is not too tight on this trip but we still have a budget we'd like to work with. If they are that steep, would it then be recommended to arrive Munich and then go straight out to either Fussen or G-P (one of these is going to be our home base for Bavaria), spend our days there, return to the city to drop off the rental at the airport, and then catch a train to Salzburg?
I wasn't the biggest fan of this option since I was hoping we could stop through some of the smaller towns like Mittenwald or perhaps even stop in Innsbruck if time allows as we made our way to Salzburg. However, if we did train to Salzburg, we'd be planning to pick up another rental car in Salzburg to drive to sites surrounding Salzburg including Bertchesgaden and drive on the Hallstatt (or another city along that route, undecided exactly where) as we make our way to Vienna to drop the car off. Or should we be trying to train our way across Austria?
Just wondering for those who have done the combination country trip. What worked best for you in terms of transport, both in efficiency in terms of minimizing travel time and in terms of cost?