Wonderful display of Packards in your diorama. I, too, am a Packard collector, and I have to get mine together and make up a display. You've encouraged me to photograph mine. Packard was such a great brand.
My favorites in some semblance of order, are Cadillac, Packard, Chrysler, Studebaker, Buick, Ford, Lincoln, Citroen, and probably every other American and foreign car out there.
Keep up the good work on your dioramas. Very, very nice!