More and more we are seeing active aerodynamic on nowadays cars. Elements that constantly adjust to get more speed, or in this case, to improve efficiency. This “wow” concept, transforms into aero mode when you get more than 50 miles per hour. The rear of the concept stretches over 15 inches to guide air down the tail. Flaps in the bumpers also extend outward, and the wheels adjust to improve the flow around the sides. To trim things out underneath, a portion inside the front bumper moves, as well.
So you get to an incredible low drag coefficent of 0.19! Add a plug-in hybrid engine and you get great efficiency.