At least some of these models had a 12v/110v refrigerator behind the passenger seat, factory dual batteries, a rear closet, and storage under the jump seat.  That's how my '86 is set up.

  Date:    Tue, 30 Jan 2007 09:46:21 -0800
From:    Mark Drillock <drillock@EARTHLINK.NET>
Subject: Wolfsburgs
  Not such a cut and dried issue.
  In 84 there were 2 Wolfsburg Vanagon models that had equipment made by
Westfalia. Only one had a stove and poptop.
  In 85 there was one Wolfsburg Vanagon, no stove, yes poptop.
  In 86-87 there were 2 Wolfsburg Vanagon models with equipment made by
Westfalia. None had stoves, only one had a poptop.
  Mark