Originally Posted by Jaimito Cartero

You must be kidding, right? You're going to go over a car with a fine tooth comb, look underneath the bumper, note every minor scratch on it? Most of the time when I rent a car it's in the evening, and it's just not feasible. I always do a walk around to make sure the tires are good, no major scratches and such, but more than that is going to be difficult.