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Dunkel Industries Multi-Use Vehicle
How about this thing? Based on a Ford F650, this is from Dunkel Industries, and it's billed as a multi-use vehicle, combining a motorhome, toy hauler, and large scale pickup truck all in one vehicle. At 32 feet long, it has all the comforts of home with the ability to level itself if you camp on uneven surfaces. A military-grade 4x4 system should allow it to go where no other RV can. The huge truck bed can hold another entire car and there's space for dirt bikes or ATVs on top of the cab — because towing off-road is not the kind of adventure you want.