Additional driver
While using an additional driver service you can reduce the risk of an accident. However, it is also important for you to know that in the event(s) of accidents caused by a driver that is not mentioned in the rental agreement, the insurance is invalidated and you are responsible for the entire value of the car.
Mentioning an additional driver in the rental contract is necessary, because it is the only way he or she benefits from the same protection as the main driver.
