Not sure if we've already been here but....
The Brazilians sure produced some wacky home market versions of 'normal' cars. That can only mean one thing. A whole load of even sillier prototypes didn't make it as fas as the production process. In this particularly lazy thread, here's a link (and a few photos from) a 7 page gallery of such sillyness.
http://www.carroantigo.com/portugues/conteudo/curio_carros_conceito.htm
There is plenty of text - in Portugese - so those of you more studious than I can surely research some of these automobiles with a bit more depth should you wish to do more than look at the pictures (like I have)