You could make a strong case for this vehicle being barely recognizable as such. The dimensions, fenestration and over spatial configuration give good clues that this space may have once been a school bus, but the finishes, furnishings and built-ins go above and beyond bare-bones adaptive reuse.
Architecture student Hank Butitta was sick of drafting imaginary buildings in studio courses destined never to be built, and sought (with help from his younger brother Vince) to steer his education in a more hands-on direction: http://www.hankboughtabus.com