I would be shocked if it is water proof. We have one on my wife's pickup that is a roller cover. It's rain resistant but not water proof. I wouldn't put paperwork in it and drive through a rain storm with it.
I wouldn’t buy a range extender. Takes too much bed space and I use the bed all the time on the farm. For the half a dozen times a year I need to make a long trip my 30 min spent at a charger is not worth 16k. For that kind of money you can rent a gas vehicle a lot of times. Everyones situation...
It will be my 14th pickup if I live long enough for it to be built. We live on a farm so a pickup is always my primary vehicle. Still waiting on price, range specs before I decide to keep the reservation or go with another ice.
I don't intend to use it at all. In fact I didn't even order it. I still enjoy driving and like being in control. I could see no point in paying for something to take over what I enjoy doing.
I think they are going to be a good option for some companies. My guess is they are heavier than a diesel one substantially. May be why they are hauling potato chips. If you can only haul 38k legally it will make it a tough sell for the general market.