Like the Cruiser, the Patrol's livery is clearly based on that of the New York Police Department's vehicles, and is equipped with an interactive police computer. The Patrol is generally used as a patrol vehicle rather than a pursuit vehicle, due to it being slower and heavier than the Police Cruiser (the acceleration is about the same) despite its supposed role, the car is as common as the Cruiser, appearing relatively frequently as a traffic vehicle.
In Grand Theft Auto: Chinatown Wars, it is depicted as a generic police car, possibly representing both GTA IV's Police Patrol, as well as the Police Cruiser. The Police Patrol is a Declasse Merit modified for police service in Grand Theft Auto IV.