The necessary documents are: Identity Card, Driving Licence and Credit Card.
You can drive the car at any age with the limitations of the laws in force.
Yes, the security deposit is ALWAYS mandatory for all car rentals! Each car has a different amount and must be issued by credit card or bank transfer.
The limits are the same for all cars and are as follows:
It is forbidden to enter the track or participate in competitive sporting events.
Prohibition of leaving the Italian borders without pre-authorization (automatic shutdown of the vehicle if not declared)
Prohibition of embarkation on islands without pre-authorization (automatic shutdown of the vehicle if not declared)