I had a Orange AMC Gremlin that was done up in Levi's material.I got it used and abused,but the the levis held up better than the car.It had a straight 6 with a 4 speed trans. It hauled a**............mine..V
Jeep (which was owned by AMC at the time) offered a Levis Edition, with the rivets on the seats, which of course got hotter than h*** in the summer :D
I remember seeing the Slingerland set in a store somewhere & at the time I thought it was silly.