The inset rear window and chrome trim is a direct continuation of the design language from the side windows of the vehicle, as well as a nod to the old GW.Personally, I think Cadillac and Lincoln did a better job of not making the rear 3/4ths view look like a top heavy, 2D box. Jeep's choice of heavy amounts of trim (especially on top), an inset rear window (excusable if it actually rolled down), and tall windows with a flush bumper make it look somewhat goofy. The rear wheels end up looking smaller than they are and the design loses some of visual strength. I don't think its horrible but even the Grand Commander does this better in my opinion.
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While I agree it looks top heavy from that angle, this appears to be in the lowest suspension setting for Park and in other photos/video looks much more sophisticated than GM/Ford products. Lack of a rear ledge is different but I imagine related to maximizing interior/cargo room