car hauler

This is several years old and probably has made the rounds here. I wasn't around then so here goes! How would you get this car into and out of the bus? The multiple copies of the article out there mention nothing about the engineering behind this. Yes I want to shamelessly rip this guys build!

I'm looking into building a enclosed car hauler. Front engine flat nosed bus. I'm just a few weeks into the research but ready to get started on a solid plan if i can fit everything I need. I need room to live in obliviously while on the road. The shop or car area is what I'm truly wanting...