Unlock: Select the Driller and Chopper option
First up, get the best available team. When you steal the Driller, head straight to the lot and to the far side of the truck. Go straight in and drive straight out, going right while following the highway.
Never stray away from main roads at all costs. The most advisable path is toward the coastal loop or out toward the desert.
In any case you were unable to lose the cops, head into the desert or a desert airfield first, then begin circling. Slowly bait the police into offroads to escape.