Make yourself a plan and stick with it as much as possible so that your family's survival shelter will meet your needs without becoming overly burdensome.
If you have spent any time at all in a vehicle, you know that cramped spaces can make for complications you may not have to deal with in household settings.
What happens when you won't think twice about the expired jar of pickles you plan on eating? Will it be "just food poisoning," or will it turn into something worse?
The perfect hideout won't look the same for everyone, but they'll have the same purpose. Your primary goal is to keep you and your family safe when SHTF.