RE: Those who have put car tires on their vans are really happy, those who
haven't are waiting with bated breath for some tire-related carnage.  Hasn't
happened yet.

As a matter of fact, because of my ignorance, I ran passenger tires for
about five years on my '85 Westy.  Result was really crappy handling, sway
all over the place in any wind, two sidewall separations and just damn lucky
I didn't have a blow out.  I though I had an all new vehicle when I finally
got the right tires on it.  And no longer waiting for  a set of the Hydro
Edge Michelins to blow out, we already have an example here in the NW, one
of our local Westy drivers.  He got lucky, was able, after a big hassle, to
get the Michelin store in Santa Cruz to replace it under warranty but they
made it very clear that that tire was not supposed to be on a Vanagon.