I only have the base model Dodge Charger, but I love it. It rides very smooth. I also like how it sits up higher than my old car (grand prix). It is nice and roomy too. Very comfortable to ride in. The seats make you feel relaxed and not strained. I am short (5'2") and it is easier to see over the steering wheel and dash in the Dodge Charger. I cannot wait until I can afford to purchase a more "loaded" Charger with leather seats (heated of course) and the "Hemi". :)
Satellite radio, UConnect, large trunk, and comfortable seats.
For the base model I do not foresee any suggested improvements. However, for the "loaded" model, I hope that they will not come standard with sunroofs when I am ready to buy one. I do not like sunroofs.