Oddly optioned cars and Dealership demonstators?

Wondering what kinda wierdly optioned mopars all you folks have come acrossed in your years. Dealer demonstrator cars are some of the oddballs. There is a 68 or69 dart in my area that is a factory yellow, 4 door 4 speed 318 car. The guy who has it says it was a dealership demo car. it now has a 360 in it though factory 318 long lost. owner saved car from crusher