Whats that collision damage waiver that car rental companies want you to buy? Do I need really need it when I rent a car?
The collision damage waiver, which is a type of insurance that the rental car company tries to sell, releases you from financial responsibility should you damage their vehicle while renting it. If you have already have insurance on your own car (including collision and comprehensive coverage), and rent a car for pleasure only (e.g., when on vacation), you don’t need to buy the collision damage waiver from the rental company. Renting a car for business purposes, however, is usually a bit different, and you should check with your insurance agent first.