I saw this on You Tube and thought it was interesting. I keep a pretty substantial kit in my car in a duffel bag in the trunk. For many years I have kept a car kit that I believe will last at least 72 hours. This goes back to my road warrior days when I spent significant amounts of time traveling by car. If I ever got stuck due to weather or SHTF I would be relatively safe in my car. Do you maintain a car kit?