This thread seems to be home for some unusual BOV / bug out vehicles. Some are more practical than others. The link below will take you to a video of a bug-out-vehicle that's also a tiny house on wheels.
I wouldn't call it totally practical but it is very innovative.
Envision a vagabond lifestyle. Or, consider the concept of early exit bugging out. For example -- you begin to hear rumors about possible rioting over the loss of Blue Bell ice cream. You could stay put and take your chances with the hoards, or you could get out of the shadow of the city and set up housekeeping without skipping a beat.
This tiny house on wheels includes a shower, a full sized bath tub, composting toilet, wood burning stove as well as a full sized propane range/oven. There's even a penthouse!
The most interesting aspect of the design is that it incorporates art, style and engineering much more aesthetically than the utilitarian designs we're accustomed to seeing on campers and the like.
It's not quick to set up so alternate transportation would be required.
Here's the video:
Castle Truck.