Sorry, I don’t understand.:(
Ah, so you're Chinese. I will help you understand better the American culture. As an example of what the phrase "gives it more character" means, think of a man. Scars, old age, make a man more handsome and interesting. That is called "character." This is also true for cars, as everyone knows. Most Hollywood celebrities have their cars busted up just like yours. It's hip. Cool. Radical, as we Americans always say.