on another note, there's a pretty good chance that most cop cars won't even do 140. A stock police interceptor crown vic tops out around 130. Considering the way most cops treat their cars, chances are that many of them won't do over 120. One of my friend's dad owns an oil change shop and changes the oil in all teh cop cars in our area. Even though all they have to do is bring the car in (on the clock I might add), most of them are 10-15k miles over each time. The engines tick and make noise, all the belts squeak...

Even the GSP charger would have a problem catching up to you if you pass them at 140.