http://www.youtube.com/watch?v=3sHmDxwZlXQ 

Its from the seventies!
M 8)

Dude, that is way cool

It's been turning up every now and then for years though this version is a new one (on me at any rate). Hmm, try to get that past the engineers these days.

The main questions if it is available are

Is it available?
What is the cost?
Is it useable?
Can the Beetle tow it for extended periods?
Does it affect air cooling of the engine?
Can it be towed by any other vehicle?