Hi there! The advantages are:

1. Proper Documentation -- Ensure sufficient coverage for the drivers

2. Usage of Rental Car -- They own their own fleet so you do not have to worry about the vehicle you are using

3. Accident -- Well-covered when accident occurs

4. Traffic Fines -- driver should be responsible for any fines issued by the authorities

5. Missing Vehicle -- car rental companies go the extra mile to secure their vehicles by installing GPS for security purposes

To find out more on the pros and cons of renting from an established car rentals source vs illegal car rental source, you can check out the article here - https://bit.ly/2zPWYqU