The Airflow was a product of true "wind tunnel design". In 1927 Carl Breer observed what he thought was a flock of geese flying towards him over the horizon.  He marveled at their smooth, effortless flight.  Carl suddenly realized what he was actually watching was a squadron of Army planes returning to a nearby air field.  Undaunted, he began  thinking of the smooth flight of geese and airplanes.  They both had streamlined bodies and seemed to move effortlessly in flight.  He  extended the thought to include a motor vehicle moving through the air currents... and his logical mind took over. 

A simple, rectangular wind tunnel was designed using recommendations and specifications of Orville Wright.  Using linseed oil and lampblack, a visual record of the air flowing around models could be observed and recorded.  One of the more interesting discoveries made was that the conventional car of the late 1920s/early 30s generated less air resistance moving backward than it did when moving forward.  Six years later (Carl was not one to rush into things) and after extensive experimentation and field testing, the Chrysler (and sister vehicle, the DeSoto) Airflows were introduced to the public.