Most car rental companies in Rosario require a credit card for renting a car. This is because the credit card is used as a security deposit and for any potential damages or fines. However, it's always a good idea to check with the rental company directly as some may have alternative payment options.

To rent a car in Rosario, you will typically need the following documents:

• A valid driver's license from your home country
• A passport or ID card
• A credit card in the driver's name for the security deposit

While the minimum age requirement to rent a car in Rosario is usually 21 years old, some rental companies may require drivers to be at least 25 years old. However, there are also rental companies that offer options for drivers between 18 and 24 years old, with additional fees or restrictions. It's best to check with the specific rental company for their age requirements.

Most car rental companies in Rosario provide basic insurance coverage as part of the rental cost. However, it's important to check the terms and conditions of the rental agreement to understand what exactly is covered. Additional insurance options are usually available for an extra fee to provide more comprehensive coverage.

Many car rental companies in Rosario offer the option to return the car to a different location within the city. However, there may be an additional fee for this service. It's important to check with the rental company beforehand to understand their specific policies and fees for returning the car to a different location.

If you return the rental car late in Rosario, you may be charged additional fees. These fees can vary depending on the rental company and the duration of the delay. It's important to inform the rental company as soon as possible if you anticipate being late in returning the car.

Most car rental companies in Rosario allow for reservation cancellations or modifications, but there may be fees or penalties involved. The specific terms and conditions can vary depending on the rental company and the type of reservation. It's best to check the cancellation and modification policies before making a reservation.