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More gears often equals more efficiency, so we're glad to see Hyundai release its own 6-speed automatic gearbox. Most manufacturers purchase ready-made auto boxes from specialist companies, but Hyundai's gone the route less traveled. The company joins Toyota, Ford and General Motors as the only manufacturers that actually designed and built their own six-speeders. Compared to the outgoing 5-speed box, the new unit is 26 pounds lighter and uses 62 fewer parts, despite adding that extra ratio up t

After four years of development, Hyundai has joined the ranks of GM and Ford as the only automaker to develop its own six-speed automatic transmission in-house. The new 'box sheds over 26 pounds and 62 parts from Hyundai's five-speed unit, while increasing fuel economy by 12% and decreasing shift times. Five different variants of the six-speed will be produced, with the 2009 Hyundai Azera equipped with the 3.3-liter Lambda V6 being the first recipient, followed by 16 other models, including the