Precise robotics, the latest in laser tech, monstrous machines, and a skilled workforce of thousands all working in tandem to create the world's most iconic powerhouse products. Ultimate Factories takes you behind the factory tour, into areas never seen by the public. We uncover the history, technology and development of some of America's favorite high performance brands: Lamborghini, Rolls Royce, Porsche, IKEA, and the NY Subway Car.  Currently airing on National Geographic Channel.   Please check your local listings for times.