I don't know. Have you felt moved to post at *their* website?
Apparently their forum's more interesting.
"I was disgusted to see people in this forum supporting the 'Vans decision to put the Drivelodge X470 plumbing manuals online. It doesn't matter that these are no longer commercially available; the fact is that they are the property of Chap Grumman, Drivelodge's sanitary engineer, and as executor of his estate, it is my duty to make as much money out of them as possible. You so-called "caravanning fans" are actually ripping off hard working caravan makers and as far as I'm concerned you're just a bunch of bitter, thieving cunts. If you're so clever, why don't you try making caravans yourselves?"
"Just seen the picture in the "hidden area" of the site which supposedly shows a Winnerby Monaco with a 3-position locking jockey wheel on the towbar at the 1994 Mobile Home Expo. A friend of mine was there and doesn't remember seeing it - I think this is a hoax on the 'Vans part as one of their cartoons for Your Caravan a few years ago referred to this. It may also be an attempt to fool a certain caravanning journalist into getting himself in trouble."
Cue Prisoner Simon with his "In about 1996 all the dials which govern the general expectations of caravanning were completely reset to 00 00 00 00." Joke. Please.