[quote GAK9GMIECDC78E4]Possible idea for Plymouth to join De Soto and Chrysler with a smaller version of the Airflow? Guessing 1933 or '34...[/quote] You have the aerodynamic part of it right Freeway. It's a Briggs concept car designed by John Tjaarda in 1934. It was done at the same time as he designed a rear engined four door car for Briggs, which was secretly funded by Edsel ford as an idea for a future Lincoln. The four door car became the 1936 Zephyr.