I am planning a road trip across 4 countries with a rental car from Prague. I plan to cover Munich, Innsbruck, Salzburg, Vienna, Budapest, Gyor along the way and come back to Prague to end my trip.
Do different car rental companies have different rules about driving their cars into foreign countries? Are there any restrictions on applied rental cars for border crossings ? I've read I might need to buy separate insurance if I want to take rental car to Eastern Europe; are the 4 countries mentioned here-in part of Central Europe or Eastern Europe and if I would require a separate insurance in this case ?