Although it may not be able to be produced until 2040, BMW has teamed with Swedish designer Erik Melldahl to create a 3D printable concept vehicle made just for the Serengeti. The body of the vehicle would be 3D printed and infused with mycelium, a type of mushroom. It would be light weight and strong, while the remainder of the vehicle would have all sorts of environmentally friendly mechanisms. More details on this concept vehicle can be found here: http://3dprint.com/9174/bmw-3d-printed-vehicle

Is this something you think will be possible in 10 years? 20 years? 30 Years? Below is an image of the concept vehicle.