Many car rental companies are located together. First, you need to get a ticket number and wait for a few turns, which took about ten minutes. Pretty quick. The staff on site were very friendly and didn't aggressively push insurance; they simply asked whether I had insurance, as driving on narrow mountain roads like those in Amalfi or Sicily might make it necessary. This time, they emphasized the need for an international driving license and mentioned that it could result in a fine if the police checked and you didn't have one, so it's important to take note for next time. After signing the waiver and acknowledgment form, the process went smoothly. Since I had reserved a Q5, a luxury car, they kindly asked to register my return flight details as well. It seems this requirement for an international driving license and return flight information is related to renting luxury cars; I didn't encounter this in other countries before. Just sharing this as a friendly reminder to others.