This past weekend my son, Jim, came over to run trains and I asked him to make changes to my K-Line 21″ Silver Horizons observation car. He removed the original lighting and replaced it with Jack Pierce’s LED interior lighting. We think it gives the car a softer, much more prototypical look and it uses a lot less current. He also added red rear marker lights, a flashing red strobe light, and lighted the drum head. I added new carpeting on the floor which covered up the light blue plastic floor with a lot of holes in it. I also added a lot of additional passengers while we had the car open.