One of the coolest features of the Plymouth Duster is the fold down rear seat that gave access to the trunk. When I was a kid, our family went to the drive-in theater and we kids could lie down with blankets and snacks, with our feet in the trunk area. It was like a little cozy fort. We could also sleep in the car on camping trips instead of breaking out the tent. A roof rack could be installed on the top for luggage and camping supplies. The slant 6 was more economical and reliable when the first oil crisis began in October 1973, when there were long queues to get gasoline only for the station to run out before you could get any. The price per gallon went from 35 cents/gallon to 50 cents, but the biggest problem was the availability of fuel due to the OPEC embargo.