We are planning a road trip ( by rental car) in September to travel from Amsterdam to Berlin to Nuremberg and to Munich. We want to make a side trip to Milano to visit cousins and leave our car in Munich. We wish to make that a quick 48 hour side trip from Munich to Milano and then return to get our car in Munich. After the return to Munich, we will be headed back to Amsterdam to return our rental car and fly back home.
For this portion of our trip ( Munich to Milan and return to Munich within 48 hours), what is the most economical method to go from Munich to Milan and back? We have seen flight costs but are unsure of train costs as well as how much time it would take.