I've had a few. The 08 I had was a rubicon, 3.8, auto, 4.10's, 35's and you would nearly get run over in it. It was terrible on the highway and any type of incline. I didn't keep it long.
The 2012 was just a sport, 3.6, auto, 3.21's, 35's and it was night and day difference from the old 2008...