Temporary identity. Vehicles and their sizes represent power, potential and capabilities. Up hill is the wrong direction. Downhill is the right direction. Independence, lifestyle, choices, adventure, transitions, being sidetracked, needing time away to think, and not facing problems.
See Driving, Vehicle, Camp, Tent, Direction, Map, Travel, Choice, Ascend, Descend, GPS, Hobby, Fixing, Speedometer.