Do you happen to also own an electric car? Sounds like a case of range anxiety. I think in the scenario your referring to is applicable to about 3% of people, on a full tank 300 miles is pretty much a minimum for me with a V8, lift, tires, a sh*tload of armor and fully packed. In the event you would need to take on more fuel a 5 gallon jerry can adds roughly another 35~ lbs. We are really talking about a small small deviation.
When it comes down to all that if you run out of gas with 375 miles of range thats on you... take a course in navigation and route plotting.
Well... actually they are, sport utility vehicle... its in the name. By simple definition it is a car classification that combines elements of road-going passenger cars with features from off-road vehicles, such as raised ground clearance and four-wheel drive. So with that said... it is purpose built to have great capability than the passenger car. Can it be taken further with mods? Yes, of course.
MOST people don't buy trucks and SUVs to go off roading but they do buy them to have greater cargo capacity, better potential in inclement weather and there in lies that fact that they are purpose built vehicles. The crossover fad in recent years is proof of that.