One of the concepts that caught my eye was the Renault R-Space, an MPV-style car with, quite a unique interior idea.
According to Renault, the rear cabin space of the R-Space features, "Twenty-seven miniature motors [that] power an array of height-adjustable hexahedrons, allowing four settings to be programmed, from an all-flat surface, to a booster seat, a table or a random configuration (only when the vehicle is parked) for children's games."
In case you don't quite fathom how it works, maybe some pictures might help:
Still puzzled? Well, me too. I guess it's just one of those wacky things by those crazy French that has to be seen to be believed.
Overall though, the R-Space Concept is pretty nifty. I wouldn't mind if future MPVs do look like this, but we all know how far away production cars end up from the original concepts.