Only once, and it was sweet.
Back when I was a kid I lived west of Loveland right by the Devil's Backbone. I had a 1970 Ford pick-up with a 390, and it would fly. My brother and I were coming home from town heading west on Hwy 34 at a good rate of speed, like dumb teenage boys do. We were just starting up the hill that the Devil's Backbone is on when a cop car crested the hill heading east into town. The red and blue lights came on, and as soon as I saw that I downshifted and hit the gas. My brother was hollering at me trying to figure out what I was thinking. The cop car got to the bottom of the hill and turned around in a restaurant parking lot and started back toward us. I keep accelerating over the hill and when we had crested the hill and the brake lights could not be seen by the cop I hit the brakes and turned hard onto a little service road that ran along the face of the Backbone, and led into our little neighborhood. We flew down that little road and slid into our driveway and ran though the garage, jump up on the fence and waved at the cop who had topped the hill and was accelerating west passed Sunny Jim's candy store on Hwy 34.
That is the one and only time I every tried to outrun the cops. I figured it was best to stop while I was 1-0 and could retire undefeated. My brother became a cop and I don't drive fast anymore(I am turning into an old man). [Beer]