In the future, cars may not be built and assembled at automotive warehouses and factories full of automated robots. They may be the product of more efficient manufacturing thanks to 3D printing, which can produce relatively inexpensive, light and efficient automobiles. One pioneer, Jim Kor, founder of the Urbee 2, a 3D-printed vehicle, made a three-wheel, two-passenger vehicle with plastic through Fused Deposition Modeling, or FDM. This involves spraying molten polymer layer by layer to build the car chassis. The entire car, which is roughly 10 feet long, took about 2,500 hours to build. What would normally be several pieces of metal and other components in a traditional car is now made from fewer and larger pieces that result in a lighter vehicle. And a car with less weight can use fuel more efficiently. Vehicles that are made through 3D printing may be the wave of the future, potentially revolutionizing automobile construction.