Kia Motors America (KMA) today unveiled the Ray Plug-in Hybrid concept during a press conference at the 2010 Chicago Auto Show, advancing the momentum of Kia Motors' global alternative fuel and powertrain research program, and its sub-brand coined "EcoDynamics," to develop innovative fuel-stretching and emissions-cutting technologies. The most efficient Kia vehicles with significant fuel consumption and emission reductions developed under the EcoDynamics sub-brand will be identified with the EcoDynamics badge. Recently, the EcoDynamics sub-brand took a...