Collision Avoidance Device

A collision avoidance device, includes a license plate frame, a first sensor mounted to the license plate frame to determine a distance of a following vehicle to the license plate frame and a second sensor mounted to the license plate frame to determine a velocity of the license plate frame, a logic circuit electrically coupled to the first sensor and the second sensor, wherein the logic circuit, determines a safe trailing distance between the license plate frame and the following vehicle based upon the velocity of the license plate frame and determines whether the following vehicle is closer than the safe trailing distance to the license plate frame and a warning light is coupled to the license plate frame to illuminate the license plate frame if the following vehicle is closer than the safe trailing distance.