I upgraded my truck to a new Sierra with the All Terrain package. I decided that I like the blacked out look of the All Terrains better than the blingy chrome of the Denali trim, but otherwise they’re equipped pretty much identical other than the white and red Ranchos and some red stitching and faux carbon fiber on the inside. I bought black mirror covers and door handles to cover the chrome ones. I laid flat black vinyl over the chrome trim under the windows as well as the lower door molding. I laid gloss black vinyl over the running boards and the formerly polished portion of the wheels. I still need to tint the front windows and remove the chrome “Sierra” from the tailgate. I’m debating whether to black out the GMC emblems or leave them red. I think I’ll end up leaving them.