Drew,
If a van were DIR it wouldn't be white. It would be black. It would also have two gas tanks and you and your buddy would both need one. The fuel gauge would be marked in 3rd's, the dashboard would be to the right of the diver and all the lights would be on the left. It would have 8 tires, two windshields, one of which would be foldable and could be stored in the drivers door-pocket for easy access in the case it needed to be replaced without stopping the drive. There would be nothing electronic, no CD player, no warning lights and certainly no dashboard computer. You would have to note your KM every 5 min along the way and calculate when to start breaking based on adding it all up in your head and the curve of the road you're on.
Naturally, a DIR van could go faster, further and longer than any other vehicle on the road but none of the that would, as owner of such a vehicle, make you feel superior to other drivers. OK, it might but you would claim it doesn't and fail to convince other drivers of your openmindedness.... You would also need to undergo extensive training to learn how to drive the van but most of that training would focus on how to remain absolutely still. In fact, you would be most proud of it's ability to go backwards, something other drivers can only do by turning around and driving the other way.
And finally, even though the DIR van was made for grinding it's way to the top of Mount Everest almost everyone who had one would use it for driving back and forth to the Wallmart.
R..