For travelers looking for a Stuttgart Airport car rental, look no further than SIXT. We have generous business hours, and we offer 24-hour return service. If you are on a romantic getaway, try one of our premium convertibles to enhance your trip. Families on vacation will love one of our SUVs, station wagons or passenger vans. Add GPS to your rental to get you to your destination quickly and correctly. To keep the kids safe, add child seats to your rental.