Standard police vehicles throughout North America right now are Chevrolet Impalas, Chevrolet Malibus, Dodge Intrepids, Dodge Durangos, Ford Crown Victorias, Ford Mustangs, Chevrolet Camaros, and some Pontiac GTOs. Nobody should be surprised if they see those vehicles manned by police officers.

If it ain't the above vehicles, if I see blue lights, I am not pulling over until the 911 operator I talk to when the guy hits his lights tells me the "cop" is legit.