An auto car on a tow dolly?

Very true. Lol, maybe rent a uhaul truck and trailer combo. Then you are covered for sure. I can tell you from experience hauling through that pass even with my 1 ton diesel truck and a car loaded on my trailer it is an adventure to say the least. My dad and brother in law both had Dakota trucks. One was 2wd the other 4wd and I don't know I would trust either to handle the weight of an older real steel car with even a lighter dolly to handle that. It would be bad times to be overheated or blown engine or trans in the pass where cell phone reception is non existent. Especially since it can be 100 miles between even gas stations let alone towns. Unless of course you like to be adventurous. Haha, I usually reserve those types of fun for when I'm close enough for AAA to come get me.