Can I rent a car in Germany and drive to Austria?
Most rental companies in Germany and Austria will let you take their cars across the border. ... Some companies include the cost of extra cover for taking the car abroad in their rental deals. Most don't, however, so you'll pay a 'cross-border fee' at the counter when you arrive to pick up the car.
Reference:
Can I cross the border between Germany and Austria in my hire car ...
Aug 1, 2019