Most car rental companies in Rorschach require a credit card for renting a car. This is because the credit card serves as a guarantee for the rental and can be used for any additional charges or damages. However, there may be a few rental companies that accept debit cards or cash deposits, but they are generally rare. It is recommended to check with the specific rental company for their payment methods.

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

• A valid driver's license from your home country or an International Driving Permit (IDP) if required.
• A valid passport or identification card.
• A credit card in the name of the main driver for the rental deposit and payment purposes.
• Proof of insurance coverage, either from your own insurance or by purchasing it from the rental company.

It is advisable to check with the specific rental company for any additional document requirements.

Most car rental companies in Rorschach have a mileage limit for their rentals. This means that there is a maximum number of kilometers/miles that you can drive the rental car without incurring additional fees. The mileage limit may vary depending on the rental company and the length of the rental period. It is recommended to clarify the mileage limit with the rental company before finalizing the reservation.

Driving a rental car from Rorschach to other countries may be possible, but it is highly recommended to check with the rental company first. Some rental companies may restrict cross-border travel, while others may require additional fees or insurance coverage. It is important to inform the rental company about your travel plans to ensure that you are complying with their policies and regulations.

In case of an accident or breakdown with the rental car in Rorschach, you should first ensure your own safety and the safety of others involved. Then, follow these steps:

1. Contact the emergency services if necessary.
2. Notify the rental company immediately and follow their instructions.
3. Document the incident with photos and collect relevant information, such as the other party's contact and insurance details.
4. Fill out an accident or incident report, if required by the rental company.
5. Keep copies of all documentation and reports for insurance purposes.

It is important to familiarize yourself with the rental company's policies and procedures regarding accidents or breakdowns before starting your rental.