The problem with the FCA Pentastar engine is the name... Pentastar... Penta... which means FIVE... not SIX. On top of that, the cylinders are not arranged in a star pattern, but a vee pattern:

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Thus, the engine associated with that name is all wrong. A suitable engine with the Pentastar name would be this:

Thus what FCA MUST do is redesign the Pentastar so it is a 5 cyl radial engine.

OR rename it to ‘Hexa-V-a-reeno’