Oddly optioned cars and Dealership demonstators?

I had a 70 Duster 340 bought new off the showroom floor that was a little odd. It was a two tone tor red body with black top. It had side moldings instead of stripes with a dealer installed go wing. It came with the deluxe steering wheel that included the factory tach. It was a 3 speed on the floor standard bench seat and had the 3:91 sure grip. All this with white sidewall tires.