Most SUVs nowadays aren't SUVs but all wheel drive cars ... Toyota Rav4s are a great example of "cute utes" . Front Drive and All wheel drive, 4 wheel independent suspension, car engine and unibody construction, no solid frame at all.
Truck based SUVs are good for highway use - perfect example is a Ford Excursion. They don't get the greatest mileage, but you don't need to make 10 trips to the supermarket to buy groceries becuause you can fit eveything in them. And a diesel Excursion will last 300,000 miles easily. They are built tougher and last longer.