Here is some perspective that may be useful. Back a few years ago one of my many "Working While Retired" jobs I had a chance to drive both new and two year old FORD and CHEVY/GMC SUVS hauling railroad crews all around the state of North Dakota and parts of Montana. Winter and summer.
Here is my experience with those vehicles:
The Ford expeditions Long Wheelbase with three rows of seats from new to over 250,000 miles (in two years) At 250k to 300K they remained quiet, rattle free, engines powerful and responsive, and all controls still working well. Interiors held up very well.
Sadly the Chevy/GMC Suburban class didnt fare nearly as well. Every one I drove in the high mileage ranges had serious rattles, interiors ratted out, Controls not working (like cruise, radio etc) They were much noisier than the Fords and worse of all their engines seemed to give up and need replacelment at a much higher rate than the Fords.
I actually came to this job looking forward to driving the Suburban a vehicle I had always admired and never driven. I soon started to avoid driving them whenever possible.
Now Preventative and routine Maintenance was all the same for both types of vehicles and these vehicles were driven by many different people 24 hours a day and all vehicles went to the same places. (Thus obviating any ideas of one vehicle being favored over the other. Except for th fact that many other drivers like me preferred the Fords and if one was available we'd take that instead of the Chevy's meaning the fords actually worked MORE.
As for terrain covered about 15% of driving was off road in 4WD mode during winter or spring.
That sold me on never buying a Suburban.
