I had a '73 /6 Auto Swinger, green on green, very base model, for 4 years ('86 - '90). When the Challenger blew its rear freeze plugs I had nowhere to work on it so bought a daily driver till I could. I put 25K miles on it before moving to Ill Annoy, left it behind in Las Vegas with a coworker who really needed a cheap reliable ride.
Outside of the grille (hit and run while it was parked), normal Las Vegas sun damaged interior, and a couple small dents, it was still in great shape and ran well when I let it go.