After reading Smokey Yunicks book I thought about flat towing…I mean you see dinghy’s behind RV’s all the time.
One bent control arm or strut and it would be trouble, same with the dolly if you ball it up bad enough, like I did at Charlotte one time. I used to drive my car to the track, had to drive it home on 5 cyl’s one time and had to call a friend when I melted an engine down. AAA Premier with free 200 mile tow can be a big help…
I currently use a tow dolly behind a Mercedes 300SE 126 chassis sedan, have used Volvo 240, 740 Turbo, BMW e12 528i, BMW e28 528e (Used that one to tow an Alfa from NM to NC) If I am going to go further than 250 miles I rent a truck for a week -$500 and do a few days of business with it to help pay for it, I have a nice Kaufmann dual axel with brakes.
I would not advise for anyone to use a dolly, most people are more concerned with talking on the phone or texting to handle that kind of rig, and not just the nut behind the wheel, every other nut on the road. I schedule my tow specifically for traffic, the last race at CMP I was the first Spec e30 there, not because I like getting there first but I go slow, travel when there is no traffic (Hopefully) and do not tow after dark.