Forgive my ignorance, but what is "Mono-Volume"?

Pete
'87 Westy
"Joe's Van"

> I sent an e-mail inquiring about whether there are any new Microbusses out
> and about to VW of America, and this is the response I got.
>
> Dear Debbie,
>
> Welcome to the Volkswagen Web site.  We appreciate your interest in the
> Microbus.
>
> The Microbus is designed to be an efficient, mono-volume vehicle.  It's
> considered to be a truly innovative multi-purpose vehicle with an incredible
> amount of completely uninhibited space.  In addition to the highly flexible
> interior, everything the Microbus could offer would rest on top of an
> extremely rigid suspension.  Considering it's unique sense of style, the
> Microbus places itself in a world of its own.   Be sure to visit
> http://vw.com/microbus for more insight and information.
>
> We are delighted to inform you that Volkswagen AG has announced that the
> Microbus will be produced.  Volkswagen Commercial Vehicles will build the
> Microbus for production at Hanover's Commercial Vehicle plant.  No official
> dates have been released at this time.
>
> If you would like to be updated when further information becomes available
> about the Microbus, please send us your complete name and mailing address
> and email address information.
>
> Thank you for your submission!
>
> Laura
> Volktalk