Not sure about in NY, but in SF, Uber cars tend to have a small (maybe 3"x3"?) but visible sign in a corner of the front windshield. Similarly, Lyft cars tend t

Not sure about in NY, but in SF, Uber cars tend to have a small (maybe 3"x3"?) but visible sign in a corner of the front windshield. Similarly, Lyft cars tend to be have a little glowing mustache and/or a similarly sized sign in the front.