Not to cross swords with another thread, but the Impala once again proves that front-wheel drive and police driving DO NOT MIX. The drivetrain isn't strong enough, and the handling isn't safe enough. Dodge never even bothered to try to certify the Intrepid/Concorde/Vision for that very reason, although a lot of police departments did buy them and use them for light-duty work.
It will be very interesting to see how the Charger plays out as a cop car. The 3.5L V6 Charger Police Package accelerates faster than the v8 Ford Interceptor, and the 5.7L V8 Charger Police Package is amazing. Ford has had the market to themselves WAY too long, and the Interceptor's pathetic performance is showing.