Perhaps Chris' description says it all when he said "affectionately
called..." I looked through the 87 & 89 dealer brochures including the
Wolfsburg insert. I could not find any use of the word "Weekender" in there.
They simply refer to that rear bench as the seat which folds into a bed. What
Chris calls a "Westy Weekender" is referred to as the "Base Camper". Maybe
it's another made-up word like "WESTY".

Since we're on the topic on making up names I thought of a nice
non-aggressive name for one of my Vanagons -- Atilla the Van.

BenT
San Francisco