Here's a style of car that died out a while ago, largely replaced by small vans. The "sedan delivery" style was a two-door wagon with no side windows into the cargo area. They were more maneuverable on crowded city streets than truck-based delivery vans, and generally cheaper and more fuel efficient.
This one's a '55 Chevy that's obviously been hot-rodded.
Those expanses of sheet metal enclosing the cargo area made a handy place to paint the company name, in this case "Paul's Garage & Speed Shop" which, alas, does not appear to have a web presence under that name that I can find.
