M sport gets you the sport auto (which is fantastic) and Sport + mode, as well as the sport seats (moot if you are getting multi contour seats). If that is out as you said due to cost, I don't believe the x or lux lines get you anything beyond cosmetics.
The 19" wheels would presumably offer you some handling advantage too, but I would think that is negligible on an SUV, especially because the 19's aren't much wider than the 18's.
Last edited by chrisny; 02-23-2015 at 02:57 PM..
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