Folding, Collapsble, Dismantlble, or Portable Vehicles

Does anyone know of any vehicles that can be either folded up or collapsed or dismantled or are portable and can be towed at the rear end of a caravan?
It is part of my University assignment and im having no luck on googling it.

they make bicycles that fold up... thats about the closest your going to find. The term "portable vehical" is kind of ... ironic. You can put a tow bar on just about any thing and pull it with something else, but I dont think thats really waht your asking.

A push lawnmower can be collapsed to an extent, it's technically a "vehicle".

hmmm theres that car that converts into a plane? but i don't think that fits either. I've seen it on some shows, it has wings that bolt onto the roof and can be detached for driving on the road. I can't remember what its called.

There are plenty of those razor scooters with and without seats that have little 2-stroke engines in them. They collapse pretty flat and would qualify as a scooter if they meet the minimum speed/power requirements of the state you're in. They aren't highway-legal, but street legal for some of them.

ooh ooh me me me.
there arent any Jetson like vehicles that collapse into a briefcase.
other than that, you might argue for a convertible, or one of those tiny 3 seater european cars that have inflatable seats.
of course if you feel cocky, bring in an avalanche/escalade and watch it "Convert" from suv to pickup

http://www.foldingmotorbike.com/

They have nicer ones that actually go into a suitcase. There is this company in hollywood that sends out personal drivers for movie stars who are too inebriated to drive (not Paris Hilton :lol:). Anyhow they all arrive on these scooters, fold them up and drive the person where they need to go.