There's a lot of mixed opinions on the new JK vs. the TJ, YJ and CJ. As previously stated, the powertrain is a 3.8 liter V6 as opposed to the Inline 6, 4.0 liter. This powertrain originally was a 3.3 liter that has been around for awhile now. Tried and tested mostly on the Chrysler Minivans. It's a stout setup on a front wheel drive minivan and even on the All wheel drive models however, there's no comparison of the same powertrain on a different Body such as the JK. The transmission , T.case , Axles and the Computer software are the variables that enabled this for use in the Jeep Badged 4WD that kept it competitive in the best 4WD out of the box. A lot of JK owners says it drives and feels like a Car instead of a Jeep. some says it's better and some says the TJ's are better. The Choice is yours. I would recommend that you test drive one before you make a final descision..