Saw this on Gumtree, 2000 model Avan Econ, smaller and lighter looking than my former Avan Alite, would be perfect for a small car, in WA though this one.  Don't know what they have inside though other than two single beds......

http://www.gumtree.com.au/s-ad/dianella/caravan-campervan/avan-econ-by-avan/1005777517 

I know of at least one person who tows one of these with an old model Morris Minor.........