PVC

[Jim]

PVC Panel Van Conversion; These motorhomes are built inside the shell of a standard panel van, such as a Ford Transit.

If they have a sliding door, they are often called Woosh-Bangs which is the sound some of them make when slamming the door with enough force to make it latch.

 

[Marauder]

Professional Van Conversion - ( as opposed to DIY )