 The pre-World War II Henney models usually had 160-180 trim but were actually constructed on the Packard 120A 156" wheelbase chassis with the smaller 288 cubic inch engine although there were also 160 and 180 versions available.There were minor styling changes in the 1941 and 1942 models (19th and 20th series), the most notable of which were the moving of the headlamps into the fenders.Also for the first time, running boards could be deleted with a rocker panel put in their place to cover the chassis, and two-tone paint schemes were available.