This is the most recent solution. Retractable tow bar is as safe and strong as a fixed tow bar, but also is very user-friendly. This tow bar system allows the users to conceal the tow ball behind the bumper. When the tow ball is retracted, there is no evidence of a tow bar on the car. This type of tow bar preserves the aesthetic look of the vehicle, but also is the most expensive one.