One of the significant advantages of a used car over a new one is that you are helping the environment by doing so. In this case, the argument is that the manufacturing of a new car impacts the environment in a negative way. According to research, in fact, out of the total emissions given out by a car in its lifetime, 20% of it occurs at the manufacturing stage. Buying a used car will not only avoid this situation but it will also ensure that one less vehicle ends up in a scrap heap.