The biggest problem was that most of these attempts relied on deforming the wing through the use of mechanical
control structures within the wing, but these structures tended to be so heavy that they canceled out any efficiency advantages produced by the smoother
aerodynamic surfaces.
The stylish,
aerodynamic Ray combines design and engineering for maximum efficiency, incorporating clean, flush
surfaces minimizing any unneeded edges, a flowing profile and pronounced rear shoulder ending in a slightly high deck lid for reduced drag, touch - screen
controls, drive - by - wire steering, «cool - glazing» solar glass and a lithium - polymer battery - all possible indicators of future technology from Kia.