I run Williams 15 inch N&W Powhattan Arrow five car set with my Lionel Scale J Class. It's not a scale train but looks Okay. I run it for nostalgic reasons and do enjoy seeing it run .... especially at night with the room lights dimmed.
The silhouette windows take me back to the 1950's/60s. Anytime I need a fix from my childhood train days, I run these cars.