The minimum age for a SIXT rental in Georgia is 21, with a driver’s license held for at least 1 year. Some car categories require the renter to be 25.
All renters will need a valid driver’s license held for at least 1 year plus an ID. International renters will need their passport, and if the license is in a non-Roman alphabet like Arabic, you will also need an international driving permit.
If your trip to Tbilisi is uncertain, there’s no need to worry. You can choose the Pay Later option when booking and cancel your reservation for free.