Called Sixt about an upcoming PREPAID rental in December. Very hard to find a real person on phone, ended up calling the rental location and getting a call center somewhere.

1. The reservation says the car will only be held for 60 minutes from reservation pick up time. The flight number is in the reservation. I called and asked if they monitor the flights and hold the car for a certain time after the flight lands if it is late, and she said no, miss 60 minute time and "it's a free for all what car you get."

2. My return flight was canceled and I booked a later flight. Now I have 4 hours to fill. I would prefer to keep the car for the full 8 days (as stated on rental contract) aka 192 hours and miss the reservation return time, but she said it would be an extra expense to do that but had no idea what that charge would be.