184 is nothing..... the force consists of thousands of vehicles. Although I have no idea the exact number of vehicles that are in service I would confidently say The number stated above, 9600 is definetley in the ball park and likely even more. There are 76 station houses alone, each of which have a minimum of 20 vehicles. Those are just for patrol. Then there are all the specialty units, anti-crime, narcotics, counterterrorism, warrant squad, vice, organized crime, etc. They all have dozens of cars and then there are the administrative units and the supervisor vehicles and detective squads, investigative units, etc.... Yea, the total number is absolutely in the big numbers so 184 is a blip on the radar. Those 184 will be assigned to big bosses and community units as a perk and to be seen - in my experience, they will never see any action. Well, Maybe the highway patrol unit will get one. Don’t forget those guys. They are the true wheel men on that job.
Other than the Mustang though they do have lots of other brand EVs so their fleet does consist of a lot more EVs than just those 184 Mustangs.