Police motors have published horsepower ratings?

Here's a web site that may help.
http://www.policecars.us/dodgevindecoder.html

I don't really think as far as engines and performance they were any different than a regular production car. I recall an article that I read years ago they were actually slower due to all the added equipment. This is referring to the diplomats in the early 80's. At least as far as I recall. The thing to remember with most police cars is they usually had a ton of time sitting and idling, regularly maintained but you can bet by the time they were taken out of service they were pretty well done