A vehicle wash system includes a vehicle treatment area and an overhead frame portion supporting a rotational brush that is translatable relative to a vehicle disposed within the vehicle treatment area. The brush may rotate in the same rotational direction during a first translation direction and a second translation direction of the brush along the vehicle. During one direction of translation, the brush rotates at a first rotational speed, and in the opposite direction of translation, the brush rotates at increased rotational speed. The system may include a pair of side brushes, with the brushes rotating in opposite rotational directions, but maintaining their rotational directions during both directions of translation.