How's this for newest "high-tech" - a car that can be made from a special printer that's already been invented AND printing off cars and anything else that it's told to make -- something about the 3-D printer scans an object that already exists, feeds the numbers of the scan into the printer, and the object will be re-produced as an exact copy of the original, yes--an actual object is reproduced...or you can use a computer-aided design software program and feed the numbers derived from that process into the 3-D printer, which makes a 3-D prototype object -- some dentists are using this process to make teeth that look totally natural - mechanical tools (wrench, etc.) have been reproduced and are totally functional - endless possibilities for the future!

3-D Printed Car Is as Strong as Steel, Half the Weight, and Nearing Production

http://www.wired.com/autopia/2013/02/3d-printed-car/

Kor and his team built the three-wheel, two-passenger vehicle at RedEye, an on-demand 3-D printing facility. The printers he uses create ABS plastic via Fused Deposition Modeling (FDM). The printer sprays molten polymer to build the chassis layer by microscopic layer until it arrives at the complete object. The machines are so automated that the building process they perform is known as “lights out” construction, meaning Kor uploads the design for a bumper, walk away, shut off the lights and leaves. A few hundred hours later, he’s got a bumper. The whole car – which is about 10 feet long – takes about 2,500 hours.