Abstract: An improved vehicle finishing device is disclosed for a rotary vehicle finishing apparatus. The device includes a plurality of finishing units, each of which is mounted on a drum and has a continuous base portion and a plurality of elongated flexible finishing elements. A plurality of stiffeners are also mounted on respective mounting sites on the drum. The base portions of the finishing units bear against the stiffeners when the apparatus is rotated and biased against a vehicle. The stiffeners support the base portions of the finishing units, thereby preventing the finishing elements from collapsing against the drum.