And don't forget the simplest vulchers of all...The Inline Four VW
vultures.  While having the same "type" of motor, the across the bottom
boxer four, ala Subaru is preferred by some, there is much to be said about
keeping everything "VW" if you decide you have had enough WBX in your life.
  If you want much faster for a vanagon that Subie looks good.  If you want
slightly faster and more dependable, plus fairly inexpensive and simple,
the Inline four VW motors are a great choice.  I am lurking around myself,
looking for a second vanagon with a crapped out WBX motor...for another
supercharged inline four install..

  Don Hanson