If you are talking about a 426 Hemi I would agree, but that engine would never fit and is way to heavy. The new small block Hemi is fine and you can them pretty cheap but the cost, time and effort of all the fabrication would put wouldn't be worth it. I know are cars say Chrysler on them but they are not Chryslers. It would be just as easy to put a Ford or Chevy motor in it as a Chrysler product. If these cars had come with the new Hemi's they probably would have sold better. Mechanically these cars are Mercedes so staying with a Mercedes engine makes everything a little easier. I would love to see someone do the Hemi, it just won't be me.