I have heard that chinati mountain is owned by the volkswagen heirs.I have friends who live at the base of the mountain and that is the story they gave me.
Do not advise driving a car of any kind. 4-wheel drive or pickup truck is a must. When they say the road can be "perilous", believe it!
There is good sightings of wildlife along the way - mountain goats, horses, prairie dogs, a few cattle here and there, mule deer and cougar.
Beautiful road and scenery.