(VIDEO-AT-LINK) A California automotive start-up is hoping their prototype supercar will redefine car manufacturing. The sleek race car dubbed 'Blade' didn't come off an assembly line - but out of a 3D printer. Kevin Czinger of Divergent Microfactories has spent most of his career in the automotive industry. One day he realized that no matter how fuel-efficient or how few tailpipe emissions the modern car has, the business of car manufacturing is destroying the environment. "3D printing of metal radically changes that. By looking at 3D printing not for that overall structure but to create individual modular structures that can...