Is this just an overrun braked system like that used on a caravan or trailer?
For the kit to be available on its own did you remove it from a car?
Did you fit the kit to the car originally? I am wondering if this is something I can do or do I have to have it installed professionally?
What year car was the kit installed on - I wouldn't want to buy a model too new or too old to be suitable
What is the weight of the kit?
Did the kit fit in the boot of the car?
Are the electrics available to operate the cars lights when the car is being towed?