As noted above, Polara, Monaco, Fury 1 and some Fury 3's were the most common, generally always sedans. Purpose built police cruisers had different springs and torsion bars than standard C Bodies. Cruisers would have an extra reinforcing bar in the roof to support the light bar. Most highway patrol units would have either a T code 440 or a U code 440 although some jurisdictions did use 383's mostly HP. Wiring harness modifications to run the police accessories and high output alternators were also common. Extra dome light (ticket lights) on most models.
If you are going to re-create specific police cruiser for a specific jurisdiction, you will probably need to come up with an original build sheet for the car you want to build. The are a great number of options to be had on police cruisers and many were not available on standard production C Bodies. Included such things as oil coolers, power steering coolers, throttle kick up solenoids (Increased the idle speed when the light bar was active to increase the charge rate), transmission coolers, maximum cooling radiators, rear door lockouts, strobe packages for headlights and tail lights, special tires, special wheels, special paint schemes, modified steering gears for quicker turn ratios, special shocks and on and on.
A purpose built cruiser also has a police vin number: DK for Dodge Sedans, PK for Plymouth sedans. A Chrysler C-Body police cruiser was available in theory, but as it was more expensive very few ever existed. The later grand fury police cruiser was based on the Chrysler C- Body but carried a Plymouth vin number..
Dave
