Kelpie, the tow bar slides into the receiver hitch on your MH. When you un-hitch it folds up and out of the way. There are 2 braces on your tow vehicle that it connects to. There are tow bars that attach to your car and stay on it, but I didn't want that kind. When I'm not traveling, I just slide the tow bar out of the receiver and store it in the garage. The Brake Buddy sits on the floor of the driver's side and when you un-hitch, just take it out and put it in the trunk or back of the vehicle.
One thing that has not been covered in this discussion is the weight rating on your receiver-hitch. Make sure that it is rated to pull the weight of your tow car. Some that come from the factory are rated so light that about all you can safely tow is a light weight trailer for motorcycles or something. Might be kind of in-convenient if you're going down the road and the whole shebang falls off of your rv. LOL!