Wooden Car

How much easier and cheaper would it be to build this car if your energy came free from splitting water and you were equipped with a RepRap parts maker? You could design your own engine and body, and throw it together in 600 hours or less instead of the 2000 this man required. It would also likely drop the price of the finished product by 2/3, including savings on public materials.

Since the RepRap and other synthetic building machines replace the need for many conventional tools and allow a better design process, it may reduce the overall cost of equipment.

Nanorobotics by the mid 2010's.