With the release of the the new VL stock cars, I dug out the original PRR VL Stock Car. While it wasn't scale and had a overly long electrocoupler, it was a fun car. It had a variety of sounds including a "quilling cow", cowboy, flat wheel, and even a built in "game" to try to deliver the cows without upsetting them. It also had a end of train device.
Here is a quick video.