I think this dude is a jackass, and my brother is not going to buy the vehicle.
My question is, can this guy even enforce this contract were someone to buy the vehicle? I mean, it would not be HIS vehicle anymore.
EDIT: It gets better, my brother is now telling me that the guy said that the truck was sold, but not the "detailing" (the advertising on the truck) wasn't being sold, so it cannot be altered! LOL