I have the receipt for my 68 dart. It was $2,499 without options. After the custom order, and the 225 w/torqueflite it was $2,899. How is the Roadrunner cheaper? Were 4 doors more expensive?
Roadrunners were a real big deal. Who knows, maybe they were sort of a "loss leader" for Mopar, meant to drag kids away from Ferds, Goats 'n Chivvys. It's why RRs have no trim---they were "stripped" to the bones.