CA Traveler wrote:
We had one like this. Bug Tow Bar
It connects to the axle which requires lying on the ground, does not fold up and has to be removed for driving the car. It becomes a PITA very quick.
Some states require a aux brake.
ALL states, AFAIK, have a Braking Performance Law. So does the Federal Motor Vehicle Safety Standards (FMVSS). If you can not stop your rig within the parameters of the law, you must have an auxiliary braking system. If you can stop within the parameters, you do not need the braking system. I do not know of any state that requires auxiliary braking on a towed motor vehicle. Trailers, yes, above a certain weight (that weight may be GVWR or the actual trailer weight). In many states, a motor vehicle designed to carry passengers is not legally a trailer. Check the legal definitions for your state.
I do not know of any third party testing having been done on aux. braking systems. No CR, UL, Good Housekeeping, none.
The law, of course does not address morality or physics. It only addresses safety.
Do your own research. Good luck.