Found this site while surfing. It has plans for paper fold model of a herbie. Theres a paper fold of a Fusca as well.

http://www.classicshow.com.br/cpapel.htm 

Happy oragami.:vader

I stumbled across a site with a paper model of a baybus a little while back when i was lookin for stockists of diecast baybus models hehe... not only did they have a baybus, but also decent representations of some of my other favourites, such as the Renault 12 Gordini and the Volvo 242.