Yup, that is taking the "rat rod" concept to its limits. I can just hear the conversation between the rider and his brother.
Rider: Hey bro, see that motor boat gas tank over there? Cut that ****** in half and hand 'er over here.
Brother: Do you need a 10mm socket wrench and bolt and lock-nut to attach it with?
Rider: What the hell you talking about with your bolts and lock nuts? Go grab me a coat hanger outta Marge's closet. Get me another Blatz while you're in the kitchen.
I have to say, I love it. I wonder how many miles are on that.