This is what it takes for a Tesla Model S to become a police car
https://mashable.com/article/tesla-model-s-fremont-police-patrol-ev/MAR 06, 2019
... At police headquarters ahead of the car's March 15 debut patrol ride, Fremont police Capt. Sean Washington explained why the car required $4,000 in modifications. Unlike the force's Ford police cars, a Tesla doesn't come with a "police package," essentially a barebones version of a car that can be easily modified with police lights and center equipment....
...Everything from a hard smooth plastic prisoner seat (people vomit and urinate in the back, a lieutenant told me as we toured the car) and prisoner partition and push-bumper had to be customized for a Tesla Model S. It's a long list of modifications that went into the Fremont PD EV: an overhead light bar, rear flashers, in-vehicle camera, trunk lighting, push-bumper, partitions between the front seat and back and between the backseat and trunk area, the center console pulled out and replaced with police equipment, the front doors replaced with armored door panels, and so many other details, like disabled windows and door handles for the back seat.
Tesla engineers were consulted to make sure drilling into certain sections wouldn't destroy the vehicle. The Tesla tablet remains in the dashboard, but the police computer sits in front of it. The features that Tesla is known for were disabled, like the Autopilot semi-autonomous system and self-parking.
Washington explained that the department didn't set out to buy a Tesla in particular, but any EV as part of a program to reduce emissions from city vehicles. After evaluating different brands for battery range, size ("police have a lot of equipment"), and performance, Tesla came out on top. It just happens that Tesla vehicles are manufactured in Fremont, California....
...Compared with the typical gas Ford police vehicle over a five-year period and putting on about 90,000 miles (Fremont patrol cars don't put on much mileage with short trips) it comes out to $5,130 for five years worth of energy compared to $32,297 in gas. The initial costs are where it gets people: $74,500 for the Tesla compared to $40,500 for a Ford....