If you are shopping around for car storage units , then you are going to want to be sure that you have put a lot of thought into the features that you want. If you are storing a classic car, for example, then you are going to want to make sure that you are renting a climate controlled self storage environment for it. If, on the other hand, you are just storing a spare vehicle that you want to keep safe, then you can most likely run with a standard drive up unit that does not make any particular accommodations.