rocker moldings are molded of polymer material and include a front section and a rear section joined by bridge arrangements . a preferred embodiments includes two bridge elements connected to a rear edge of the front section and to a front edge of the rear section . the bridge elements span a gap between the front and rear edges and allow for longitudinal expansion of the rocker panel moldings to accommodate thermal expansion in the underlying rocker panels and to provide for slight longitudinal adjustment in the rocker panel moldings while fitting the moldings to rocker panels .