Eventually windshields will be damaged; its a well known fact. If you are used to driving around mountains or below cliffs the chance of a loose rock hitting your windshields is quite high. If something does hit your windshield and creates a dent or crack you will need to find a way to fix the crack. Chances are you are not dealing with a series crack unless it was a large rock that fell onto the windshield. The crack that would likely form would be a type of crack known as a spider-crack. Spider-cracks occur on windshields that are made from strong substances of either laminated glass or layers of glass stuck together. A spider-crack does not pose much of a threat to you but it will make the windshield of the car look ugly. If you want your car to look as pretty as possible you will need to fix any scratches in the car’s surface. So you could either replace the entire windshield of the car or you could attempt have the crack repaired. Repairing the crack will take quite some time and a considerable amount of money. Replacing the windshields on the other hand is much easier.