Stop at the small shack up ahead just before the road tunnel for some supplies. Use the turbo when prompted to ramp across the gap, and drive up the hill to the main road. Follow the dark dirt track along the sand towards a slope which will lead onto a grassy section away from the antlions. A rebel-operated mounted gun will help take care of the antlions that come to pester you, so use the gravity gun to punt the car back upright. You'll start this chapter by emerging from inside the warehouse's back room into a large loading area with a crane and your new vehicle, the car! To begin with, hop in and the woman in the crane will lower you down off the wooden platform, only for the magnet to fail and you to plummet to the sand.