Guess one : Barracuda is really a Challenger modification
Just to remind, the initial Barracuda (third generation ) from the first 70s was actually a rebranding of Dodge Challenger. It was eventually the foremost successful and popular car through the entire model history. Fiat-Chrysler might utilize the ‘Cuda or Barracuda naming for any severe facelifted Challenger, which might even have upgraded engine. Since FCA has financial difficulties, this could be an effective name to promote the brand without major funding.