The variations in font might be the dealer removing the window sticker, typing in his add-on options (undercoating, different radio, wheels, jacking up his price on a car model due to high demand, etc.) and then sticking it back on. I remember seeing two of my cars still on the car hauler with their window stickers (and adhesive protective covers) in place. The window sticker is also a quick way of identifying a particular car as to destination, VIN, etc, although there were a lot of other stickers that might have done that.
Jim