3.6 in an LX is a pretty good combo, I'm surprised at how well it moves my wife's grand cherokee, which is heavier.
would be really fun with a stick....to bad they never did that. friend has a 2014 camaro V6-5speed as a commuter car, and that it very sprightly, too. his other car is a warmed up 2012 ZL1.
for what it's worth, charger 1.0 (my toxic orange 2011 R/T that was T-boned and totaled in November 2019) would get an honest 30MPG calculated on freeway trips if the cruise was set to no more than 70. it was a base R/T with the stock 2.65 rear gear. charger 2.0 (toxic orange 2011 R/T road and track I picked up in Jan 2021), I've never gotten better than 26.5 mpg calculated on a road trip, the Road and Track gets a 3.04 rear. to be honest, the difference in acceleration due to the deeper gear is not really noticeable.