Our family plan is to take both. Both are 4x4's (Jeep and SUV). Both have CB's, Vehicle emergency kits (made by me), If it is a long term event and time permits, then I also hook up my I hook up my flat bet trailer and take as much of my tools as I can (I assume that something will need built or repaired). As far as fuel, I have a jerry cans that are always full and enough that I can fill both vehicles at least once. Both have roof racks and are made to go through very rough terrain. If the roads are blocked or clogged, I start thinking sidewalks and the side of the road. I will get to where I am going.