DETROIT (Jan, 13, 2014) - The way people are buying cars is changing. A choice of colors and matching wheels is no longer enough. In a society where cars are purchased as a reflection - and enabler - of a driver's lifestyle, the way future models are designed needs to be revolutionized. This was the thinking behind the visionary co-creation of the Nissan IDx Freeflow and IDx NISMO concept cars, which make their first appearance in the United States at the 2014 North American International Auto Show in Detroit.