New Dodge Challengers

For the 10K difference, you could put a LOT of extras into the 5.7 car.
Insurance will probably be much better in the 5.7 car.
5.7 has MDS so better MPG.

I am too much of a car guy. I would rather buy the 5.7 and tweak it a bit, (Long tube headers, full premium exhaust, plus intake and computer) then own a stock 6.1 Sure the 6.1 is fast, but I prefer modified over stock....