I know there is a lot of debate of rental car vs. train, so please direct me to the date of another post if this has already been discussed!
We are flying into either Amsterdam or Brussels, and out of Berlin. The plan is to see Amsterdam and Brussels via train, then make it into Germany (Frankfort, Hanover, Dusseldorf?) to rent a car and drive for about a week and a half. We (2 of us) are thinking of going south in Germany, possibly then to Salzburg, Prague, and then into Poland for a wedding. Are we going to have trouble crossing into Poland with a rental car? We thought we'd return it in Berlin, then visit Poland, before taking the train back to Berlin for our flight out.
There's so many ways to skin this cat, it's overwhelming! But the rental car seems to make sense for being able to stop in small towns along the way.