For those who haven't see it before, let me introduce you the BMW's GINA (Geometry and functions In 'N' Adaptions), it's a concept car with a metal body frame, wrapped by some sort of special tissue.
The first time I saw it I thought it was alive, it could "open" its eyes!!
Here is the description of the exterior body:
"GINA has just four panels - the bonnet, the two side panels and the boot.
Its skin appears seamless, but it can “grow” a higher rear spoiler for stability
at high speed. Its doors open in a butterfly style, and are each covered by a
fabric piece reaching all the way from the nose of the car to their trailing
edge which when closed leaves a perfectly smooth surface. Access to the engine
can be gained through a slit that can open in the middle of the bonnet.-Wikipedia"
If you want to know how it looks like while in action, watch the video below.



