Every once in a while (once a week!) a debate comes up about having a Brake Buddy or other similar device on vehicles towed four-down. There is always the crowd that says if you don't have aux brakes that you're basically going to kill everybody on the highway. Quite a few times they have posted links to news stories about towed cars breaking free of the tow vehicle and causing some type of damage to the car or to other vehicles. Only problem is every single link that I have ever seen posted on here about an accident caused by a car breaking free are cars that were on tow dollies as opposed to being towed four down. There have been stories of four-down cars having hitch malfunctions but all stayed behind the motorhome thanks to safety chains or safety cables. The only stories I have seen where that didn't happen was when the straps on the tow dollies gave way and the driverless car was off to the races.