When I went to see my mom last month they upgraded me to a new Dodge Ram 4.7 4 door. I wasn't towing anything but the digital readout said I was averaging 21 mpg on the highway at 65. OK power down low but nothing like the 360 I built for my Ramcharger. The RC would run circles around it at low and mid rpm. Once it gets up in the rev range it really does take off but the RC would still beat it. I wouldn't want to tow anything behind it much over 5,000 lbs. Not that it couldn't do it, it's just really likes high revs.
I also have a hard time with this "drive by wire" stuff. It just doesn't feel right to me. It was an awfully nice truck though with up and downshift buttons on the steering wheel, power everything, a comprehensive digital display, etc.