When renting a car, you will purchase a collision damage waiver and pay an additional fee on top of the rental car fee. The collision damage waiver provides a level of protection that covers damage to the rental car. In the event of damage to the car, the person who rented the car will be responsible for the excess on the repairs, by taking out excess protection via ourselves they will also be able to reclaim lost costs from any loss of use fees that may accumulate while the car is being repaired.