Omega towing an Omega
Assume all cars for the rest of the post are Omega's
Car pulling car via rope
Car pulling car via towing rod.
Car pulling car on A Frame
Car pulling car on car trailer.
Having just read Kevin’s post I would certainly agree that the police generally turn a blind eye when a car is being towed to safety, but that sadly is not always the case.
But surely there are 4 methods above can be reordered safety wise. A rope is only as good as the driver in the stricken car, if he is a numpty then you have problems, the other 3 generally you would not have this equipment at hand in an emergency unless you were a professional.
So then you get into the lightest less powerful variant of the Mig pulling the heaviest on a trailer obviously then you have to pay more attention to towing limits.
But the question is, what weight are you actually towing using the various methods.
The rope, it has tension, then it hasn’t, then the second driver is braking to have more tension.
Fixed metal tow rod, car at ground level, 2nd vehicle braked not as important as braking with a tow rope but never the less braking still important on both cars.(Never been involved with the use of fixed bar towing but am open to education)
A Frame, all braking dependant on car 1, I believe no driver required in car 2, but the vehicle being towed is now at 2 different heights.
Car trailer (generally has 4 wheels and is fooking heavy) have used on many occasions and dead easy to use if you have a good trailer but attention to speed/bends is a must as the 2nd car is now up in the air
Now although the towed vehicle weight is what the police would focus on, surely it would feel a completely different setup with all 4 variations making it harder/easier for the lead car.
Remember the story with the adult/child on the see saw, child right at the end, adult nearly in the middle to make the saw saw work with ease.
Overall I reckon it has to be the fixed bar scenario, Not much danger of a collision between to 2, and if the engine was running on tick over then the best of all as there is added steering and brakes. No engine running then in theory the 1st 2 are a nightmare to tow with power steering anyway