I stopped reading after I saw "over 20L/100km"...ouch.
I'm more of a compact or mid-size CUV kinda guy myself - if I decide to start climbing rocks with my car, I'll get a Grand Cherokee...in the meantime, my Forester has more ground clearance and better control on the slippery stuff, it's faster than all but the SRT8, and uses less gas than the Diesel GC.
Different league entirely, I'm aware, but I don't know how anyone could justify that kind of fuel expense these days in a 5-seater. It seems to me (my opinion) like Chrysler needs to focus on making this vehicle more mainstream to compete against the other premium/luxury SUVs. Nobody who would be cross shopping with the RX, ML, MDX, etc. care about whether their SUV can climb a rock face. TFLCar (Roman Mica) said it best (paraphrasing) - the car is great off road, but its tradeoff is that it's just a mess on road.
The V6 or the Diesel are fine for this car. Save the $ on all those ridiculous off-road options. If you really need to tow 7,200lbs, you're probably towing something for work - get a truck.