I do not know about favorite but definitely unique. MTH's representation of Pullman-Standard 200,000 car produced at there Bessemer Plant.
This is THE car repainted about 2or 3-years at the NCTM.
When I say "THE" it is the actual original car that has been sitting on the museum's property. I hope to caught outside some time in sun light. It is normally kept inside to prevent fading.
Ron