So, I've decided my new VX Is in Such New – like Condition Not just because it was meticulously maintained, but because it was garaged all its life; in a heated garage no less (and Washed and waxed regularly, etc.). Unfortunately, I don't have a garage to protect it from the stresses of freezing and thawing on a regular basis. So I want to build a one car insulated garage and have a small electric heater in it to keep it at least 50F. I should ask the previous owner what temp he garaged the car at. The thing is, I want the garage to be collapsible and transportable because I move around a lot. Hmmmm....
You could build it like a greenhouse use schedule 80 PVC pipe that's the heavy duty stuff right? Then just a thick 6-10mil plastic a torpedo heater run every so often. You could make it dual layered to create an air layer to help with insulation. I'm not sure if it's the heat or just that's it's protected from the elements. Wash wax undercoat and take care of it. Pull out rear interior and do something to prevent that rust that will come.
That's from my less than a minute search. I have seen ads for ones with walls. There are also steel models that might be taken apart and moved. I don't think any that you can move will have insulation worth a damn. So heating them will just eat into your gas savings.
The one you linked to has walls you can buy for it. Maybe I could get some rigid foam insulation for it and then place a heater on the ground underneath the engine, so if it fails to keep the carport warm, maybe at least it will keep the engine warm.
IDK how frequent you move, or what you're allowed to build on each living premessis... but google "skid shed" and go that route.
Basically some 4" screws holding skids together form a good sturdy wall, some 2x4's for roof beams and cheap materials for a roof (or corrugated plastic) and plywood the exterior. It would at very least be away from the elements and UV rays. Heating it would NOT be cost effective. Heating anything that's make-shift built is NOT going to be cost effective though.