Oh man this is what I did, it was so easy. All you could do is like plant a Cheetah or Infernus of PCJ 600 or something in the grass part near where the police catch on to you. Get out of the Sentinel fast, and go into one of the cars, making sure that before you pulled out a door so you can get in the car fast (except if using a bike), once I got in the car, it was smooth sailing. Caught up to Hilary and passed him. Next few times I did it with the Sentinel, but man using a sports car finishes faster