Who Can Rent a Car in Turkey?

Not everyone is allowed to rent cars in Turkey. Your documents must be in order and you must be a certain minimum age. You will normally be asked for:

1. A valid passport (including, if required for your nationality, a valid visa)

2. A valid credit card to pay for the estimated rental fees, plus a security deposit "hold" of perhaps US$1000.

3. A valid driver's (driving) license. Normally you must have had your driver's license for at least a year before renting an inexpensive car, and perhaps two years for renting a more expensive model. If your driver's license is from a major country, you do not normally need to have an International Driving Permit.

4. A minimum age requirement. Normally you must be at least 21 years of age to rent. For more expensive models, you may need to be at least 27 years of age.

Source : http://www.turkeytravelplanner.com/trans/Car/car_rental/car_rental_eligibl.html