This is the DoubleBack VW Transporter Campervan.
When on the road, the pod stays tucked up inside the back of the vehicle. Once the driver stops and decides they’d like to settle down someplace, however, it electrically extends out of the rear in under 45 seconds, adding approximately two meters (6.5 feet) of useable interior space.1
‘DoubleBack’ VW Transporter CamperVan Conversion Extends 6.5ft!
Images © DoubleBack