I have a 2008 1500 Big Horn "MonsterMile" that was a special edition for the Dover International Speedway. After reading about it online my special edition is supposed to have decals on the side of the truck, embroidered leather seats, a plaque on my dash and cup holder among other things. My truck is your standard Big horn SLT with cloth seats. I bought it used and i didnt buy it for the "Monstermile" name so it doesn't bother me that it doesn't have these things but it did come with a piece of paper in the glove box from the dealership saying it was a monster mile. I think when they were making these trucks they had an extra badge so they threw it on a truck and it ended up outside of my place.
Here is the website that I read about this "mosntermile"
And this is what I was supposed to have
This package includes chrome side step tubes, unique Monster Mile graphics and emblems, Monster Mile Edition leather seats and a Monster Mile Edition sequence number dash plaque.