The trailers with the shiny interior use the same factory coated ALCOA aluminum as on the outside of the trailer. When you remove the carpet, you are going to find an bare, lower-grade aluminum that doesn't look very good and will never polish up like the shiny interiors.
Also, without the carpet, the trailer will be colder in the winter and hotter in the summer. That carpet makes a lot of difference in insulation.
You can pull off the carpet fairly easily, but underneath you will find a lot of spray adhesive. I peeled back the carpet to pop out a dent in mine.
John W. Irwin
2018 Interstate GT, "Sabre-Dog V"