Has anyone ever tried a two cylinder motor in a Van?  Or maybe two Hardley Davidsons, for adequate hp?  Seriously, some of the bigger "Metric" V-twins make big power and are very light..I think there are some opposed 4 motorcycle motors out there also...Wonder what a Goldwing uses?  They have to weigh as much as a Vanagon or a Hardley..
  Kidding, I kid the Hardly 'non-conformist outlaws'...by the thousands..
  Ducking,
   Don Hanson