Tips: How to avoid incoming cops - when you hear the cop siren signaling their approach, move to the middle, then once they are in view break hard and move off to the side so that they pass you. When they're in front, you can guide them into obstacles by moving up and down. When trying to get the in-game Perfect Drive, avoid collisions of any kind with the exception of people (hitch-hikers, policemen, etc.) and ONLY when ramming into the back of a police car while using the front of your vehicle (make sure not to hit from the sides). Everything else causes damage. Hope this helps!