I wanted a newer Charger RT since I first laid eyes on them. Almost bought one in 07 but couldn't afford it. When my Durango hit 170K I figured it's time to go get a Charger. I bought a pearl black 07 RT with heated leather, moon roof, spoiler. I absolutely love everything about it. It's got plenty of space and power at 340 hp and it just looks mean plain and simple. It turns heads all the time. Don't waste your time on anything less than the RT 5.7. V8. The resale value is higher and the gas mileage isn't much different between the 3.5 and the 5.7. V8. They just put more time and effort into the RT. After market upgrades are plentiful and cheap plus the sound of the dual exhaust is cool.
The sound system is awesome it definitely pumps. The performance, styling and room is an A+ also.
Better mileage for suburban/city driving. It is however very acceptable on the highway. I'm getting roughly 25- 30 depending on how heavy my foot feels at the time.