From Car and Driver, "The wheelbase increases by 1.4 inches to 96.8 in the two-door model, while the four-door’s axle span grows 2.4 inches to 118.4."
That said, after looking at it more it does have some nice features. My boss has the Ram 1500 Diesel and has loved it, so I'm glad they actually followed through on putting that in it. It does seem they kept the hard top fully removable instead of that weird sectioned roof thing they had in the prototypes. I also like that they made folding the windshield easier than on the JK. While I'm not happy to see the return of the D35 in the rear on non-Rubicon models, I actually do like the AWD option for them. Cost aside, I could see myself replacing the XJ with a 4dr Diesel. I'd be willing to bet with a 2" lift and 35's it would be a very capable family/scenic wheeler much like my JKUR was, except with the diesel it would actually have the fuel economy and power that I wanted. I could live with the limited slip and standard t-case to have that AWD mode in the winter for daily driving.
Maybe I'll keep my eye on them for a future used vehicle purchase after the Hyundai is paid off.