Abstract: A vehicle mounted display system generating advertising and/or other displayed messages which are clearly viewable from at least a rear exterior vicinity of the vehicle. An electronically powered display may comprise a digital display screen, such as an LCD, or a mechanically driven but electronically powered scrolling assembly. A mounting assembly selectively disposes the display assembly between operative and stored positions and a viewing assembly including at least one camera disposed to observe exterior areas which are obstructed by the operatively positioned display assembly. The viewing assembly also comprises a camera display disposed to be clearly viewable by the vehicle operator enables the operator to the view the obstructed areas.