The body design was based on proposals submitted by Paul Jaray of Hungarian descent, who designed the famous German Graf Zeppelin dirigibles. A fin in the sloping rear of the Tatra helps to divide the air pressure on both sides of the car, a technique used later in aircraft.
In the context of the Tatra's design, Paul Jaray's proposals played a significant role in shaping the body style. The inclusion of a fin at the rear helps to balance air pressure, a technique that would later become important in aircraft design.