ORIGINAL: RoswellGrey
Joey, here's what fueleconomy.gov says about the 3.5L V-6 Charger, the closest thing we now have to compare:
MPG (city)
17
MPG (highway)
24
MPG (combined)
20
On redletterdodge they have the challenger with a 1mpg increase on the charger, giving the Chally SE 18/25. Thanks for the link Roswell.