The Effis, a Nissan concept, “comes with a reconfigurable instrument panel offering 3+1 person seating in a comfortable space.” Click here for first picture in gallery.
This ‘rotational instrument panel’ extends to provide a rotary table. If two people are in front, the rear seat is utilized for luggage area. If more passengers to accommodate, just push the instrument panel back in, and slide the front passenger seat forward while simply raising the rear seat.
[via Tuvie]