Anybody wanna play "Name That Car"???

I think it's a '53 Packard, don't know that model, maybe Patrician?
I had just started looking at Packards when I saw your post

I think you're right on the '53 Packard - I think it's a Clipper

There's a green 4 door Clipper Special on this link that looks about the same: A picture review of the Packard from 1950 to 1958