Re: 2001 to 2004 hp question?
The 2001 cars have about 220hp. The 2002+ LX Sport models have 239hp with dual exhaust. The 2004+ P71s have 250hp because they use the intake setup from the Maurauder. As far as I know the yearly increases are mostly the benefit of better tuning, materials/build quality, ECU programs, etc. Bert might have a more definitive answer for you when he gets on.
2005 Crown Victoria Police Interceptor