If it's a true Interceptor, it was configured with the Cyclone 3.7L V6 with AWD and 6 spd trans. Usually has the tow package, heavier suspension, upgraded cooling system, and a bigger alternator. Knowing how these things are used, I would probably stay away from it. They idle probably 80-90% of the time, punctuated by WOT runs to catch up to someone late for work or when the Hot to Go sign lights up at Krispy Kreme. All while using the finest water/gas mix the city could find @ $1.50 a gallon. And cleaned? Cops are some of the biggest slobs I've ever seen. Lots of my brothers and sisters had all manner of coffee/drink stains all over everything, including the headliner! Didn't know cops could defy gravity did you? And if you went down an embankment, and were trapped in any of these cars for days, you would NEVER starve due to the leftover french fries, half eaten Slim Jims, and other edible detrius found under the seats. Granted, it's probably maintained at the Public Works shop, but thats kinda iffy too depending on how the mechanics felt about cops. Plenty of stories from our shop where a wheel fell off about 100ft out of the shop bay because the mechanic forgot to tighten the lug nuts, or a Niagra Falls of oil would cascade from the filter that was not tightened properly. Thats why I ALWAYS made good with all of the guys working on my office and would watch everything going on or either jump in and help. Those that took good care of me always got a nice bottle of spirits for Christmas. Now if it was a Crown Vic PI, no hesitation.
