I'm sure they have some use in mountainous countries or areas without roads etc, but in the UK, both of those ridiculous, fat micro-lorries would also be seen as extravagant and flashy - possibly even more so than a sports car.

They didn't seem to even exist ten years ago, and (to my knowledge) no new mountains or volcanoes have sprung up in the UK since, so I'm pretty sure for most cases a normal van would work, and it would fit in a parking space :)