(Teuva, Finland) Although it looks like a sauna roofrack, the sauna is actually part of the white station wagon, the house on top is just an extension so you can have some headroom. The stove is in the passenger seat, so I guess the driver can stoke the fire while driving. The driver also has the lowest seat, so they won't get as hot as the people sweating upstairs. Don't take this into an underground parkade.
Another one from vascellari's photostream.