Like I said in an earlier post, you are quibbling over slight cosmetic differences. To me that doesn’t discount these from being 2 unrelated cars. They are twins in my eyes just like all the other Dodge/Plymough twins. How do YOU not see this?
The cars in my post 102 have many styling differences, some subtle, some not-so.
Kind of depends on your definition of same.
Most of the B-bodies are VERY similar across the brands. (Plymouth Belvedere/Satellite/GTX/Road Runner and Dodge Coronet/Super Bee), yet the Dodge Charger is substantially different. Of course under the sheet metal, the mechanical portions are identical.
Similarly, the two E-bodies are similar (Plymouth Barracuda and Dodge Challenger), yet not a single piece of sheet metal is interchangeable. The Challenger also has a 2 inch longer wheelbase. Again, mechanically the two are the same.
Also, you might even say that the B-bodies and E-bodies are the same. The E-bodies are merely shortened B-bodies. Same firewall and mechanical components.
So it all comes down to what you want to say constitutes “same.”