Designer Da Feng got us pumped up with his Gym Car concept. Now, he’s penned a design study that uses fake fur for aerodynamic efficiency.

The Flake, Feng’s latest design, is covered in hinged carbon-fiber pieces. Each one is connected by carbon nanotubes to tiny solenoids that can make them stand up or lay flat, like an angry cat puffing up its fur. The flakes can act like air brakes, or help in turns by puffing up an opposite side.

“When traveling at speed, the car will contract to its closed position to help control airflow, and when under braking or turning, the flakes will spring open to d...