In a message dated 3/23/2004 6:01:10 PM Pacific Daylight Time,
FrankGRUN@AOL.COM writes:

<< More effective, though, would be a pressure deformable inflatable truncated
hemispherical surface mounted to the rear of the Vanagon. By controlling the
inflation pressure, at a constant velocity, while optimizing manifold vacuum,
one should be able to reduce drag by 20% or more. If you then fixed the shape
and made a mold, one could market a baggage extension which also reduce drag.
Does require moving outside the original vehicle envelope! >>

A box with half an egg attached... hmmm... Why not just buy a Toyota Previa
install the body over a Vanagon drivetrain? Better yet, dirve it as it is.

But then many of us own Vanagons because we like the way  the look more so
than the way they run.

BenT O. Boxx