A multi-faceted, rotatable promotional display device for being retained relative to a vehicle for enabling the perception of multiple promotional messages from a single vantage point. A display casing with multiple display surfaces is rotatably retained relative to a base structure. Promotional messages are displayed relative to the display surfaces, and a drive arrangement rotates the display casing relative. The display casing can have a square, triangular, or other cross section. The base structure can have a cup portion with a raised peripheral ridge, and a shell can envelope the display casing. The display surfaces can be electronic display screens or light transmissive panels. A light source can be disposed within the display casing. A drive motor can be powered by a battery, a photovoltaic array, or a wind turbine. A clutch or a force sensor can prevent the application of excessive rotational force.