Banner display system

A display system for displaying a banner on a roof of an automobile, the system comprising:

• a banner made of a flexible, non-rigid sheet material, and including a plurality of elongate sleeves;
• a frame system to support the banner, the frame system including a pair of horizontal frame members and a pair of vertical frame members, each slidably positionable within one of the sleeves, with each frame member having a length greater than the length of the sleeve into which it is positionable, the vertical frame members each including a pair of spaced apart apertures thereon for receiving ends of the horizontal frame members, wherein the banner and frame assembly are assembled by positioning each of the frame members within one of the sleeves and thereafter positioning the opposite ends of each horizontal frame member within one of the apertures of the vertical frame members;
• and
• a pair of suction cups, each being mounted to a lower end of one of the vertical frame members, each suction cup having a force cup separate from and opposite a blind bore having a closed end separating the force cup from the blind bore and an opposite open end including a suction cup thread structure, with the suction cup thread structure being threadably mountable to the lower end of one of the vertical frame members.