An auto car on a tow dolly?

Engine and trans combo are one thing, but when you are pulling a trailer it's all about weight. The tow vehicle weight versus the tow weight. My truck is rated for pulling 11,000 pounds. I pull car haulers loaded with heavy farm equipment, my 5th wheel, etc. I may be at or under factory weight ratings when I'm pulling full load. Doesn't mean that if I'm pulling up grade, or someone pulls out abruptly that I can stop on a dime or not put stress on the drivetrain going up the mountain side. Hp isn't anything when you are dragging weight. My truck has 500 hp and probably twice that in torque and I assure you I can feel the trailer sway and shift. I'm sure it will go smoothly, I myself would probably not drag a full size anything with a midsized anything 500 miles through moutain ranges. But as my wife and kids will attest to, I've been wrong many times before. At least do yourself a solid, rent the dolly in Idaho and return it to the uhaul in your area. Saves you money on a one way rental and you don't have to waste the fuel dragging a car dolly behind you all the way there.