What does your car say about you? It can say a lot according to one Washington police department:
The emphasis here is on limiting exposure to crime. Put a lot of information on your car, people might see it and take advantage.
But, this goes against what Americans argue is a feature of consumerism: the products purchased plus their customization and deployment reflects individuals and their personality. Americans do not just buy cars to get from one place to another. Instead, what model and trim and color buyers select reflects something about them. The pick-up truck reflects rugged individualism. The Toyota Prius reflects different sensibilities as does the Nissan Versa or the Subaru Outback. And then owners can modify the vehicle in a myriad of ways, including adding stickers or decals or a vanity plate to the back. And driving is essential to the American way of life.
Not all information given in public will lead to a crime. Of course, the tweet above does not cover all of the information one could add to their car. This includes messages about particular religions (think Coexist or fish emblems), political bumper stickers, and sports teams, just to name a few.