Car-to-car communication is an untapped market, and drivers wishing to express themselves to other motorists have until now been limited to license plate frames and their own middle finger. A device called the Drivemocion could serve to expand the vocabulary of drivers using a wireless display module and remote to send messages to other drivers within eyeshot. The circular rear display can show smiley faces, frown faces, "Thanks," and "Back Off." From what we can tell, the Drivemocion is not programmable, though what do you expect for €11? It does, however, present an interesting challenge to car hackers everywhere who have more to say than just : )
for a video of the Drivemocion in action.
[Source: Au-My via Gizmodo