Any vehicle's carrying capacity is vastly improved with a roofrack. My first 240 Volvo wagon had one, it's successor did not. I was griefstricken at the loss until I scrounged another unit. You toss a tarp over the load and have an additional shelter component. Any post disaster area is going to be a nightmare for wheeled vehicles. Acquire a wheelbarrow body, seatbelt webbing and some cordage. You can drag and manhandle a decent load with this rig.