The police interceptor is the lame car Furd came up w/ to replace the Crown Vic. It's much smaller, no room at all for the cop or perps once the cage is installed. That's why many PDs are switching to Exploders. They're come w/ a "police package" which consists of a little better cooling system (helps when you have to wait in line at DD) and higher alt. output to handle the added demands of radios and lights.
What's sad is during the summer I'll see the police explores with the hood open if they've been idling any length of time in 90+ heat. I think Ford could of done a little better so they don't have to do that.