It is possible to pay for your rental in cash, but only with an accompanying credit card for a security deposit.
You will need a valid driver’s license that has been held for at least 1 year, plus an ID card for Egyptian drivers, or a passport for foreign renters. Foreign renters also need an international driving permit.
The minimum age for a SIXT car rental in Egypt is 20, with a driver’s license held for 1 year or more. Some car categories have a higher minimum age, and renters under 26 will be charged a young driver surcharge.