Car storage units are not all the same. In fact, if that is what you are thinking, then you are putting yourself at risk for some fairly serious property damage. When you know that you are not going to be using your car for an extended period of time, you have to take special steps to keep it safe. As you are shopping around for a car storage unit , be sure that you are looking for all of the security features that you are going to need to keep your car as safe as possible, e.g. video surveillance cameras, door alarms, access controlled gates, and on site property managers.