My favorite police car was a 1997 Ford Police Interceptor that I got from a sheriff's office in GA. They had EPA approval to remove the cats, replaced the 18 lb injectors with 22 lb, replaced the throttle body with a race unit from Ford, put a K&N air inlet system and a Flowmaster exhaust with turndowns on, and reprogrammed all the settings in the ECU. The car was used for high-speed pursuits on I-75 and it was like a frigging rocket. And I was getting 32 MPG with the cats being gone! Tor Red with a tan interior... I miss that car. Every time I started it, every guy within ear shot would turn to look at what was making all that sound and were surprised to see a Crown Victoria.