With the debut of the new Takeri Concept, Mazda has revealed the design language for their future Mazda6 sedan, but that isn’t the only new model the Japanese company has in their future plans. In a recent interview with Automotive News, Robert Davis - Mazda’s Senior Vice President of U.S. operations has announced that the company plans to unveil four redesigned models by 2014.The first to arrive will be a major update for the CX-5 in the spring of 2012. It will be followed by a redesigned Mazda6 and redesigns of the Mazda3, MX-5 Miata, and CX-9 in 2013.The big news is that these redesigned models will not only receive exterior and interior updates, but new lightweight platforms and new gasoline and diesel powertrains that boost power and fuel economy. By 2016, Mazda also plans to add stop-start, regenerative braking, and hybrid technologies.The new platform developed for the four new models will be the first one developed solely by Mazda. The company has been using platforms shared with Ford Motor Co. for most of its vehicles, but since Ford sold its stake in Mazda in 2006, the Japanese company has announced it has no plans to share its new platforms and powertrain technologies for U.S. vehicles with Ford.