Dual-Mode, Adjustable-Span Vehicle

  •  New conceptual vehicle
  • Has tire wheels for running on roads
  • Has rail wheels for running on rail tracks
  • Has rail wheel pairs of changeable spans
  • Only uses electricity as driving power
  • Is charged when running on rail tracks
  • Uses battery as power for road running
  • Battery can be smaller when working with rail freeway system
  • Highly light-weighted compared with cars
  • Light rails can be really light thus very low cost
  • Best for both daily commutes and long-distance travels not too far away from rail freeways
  • May be powered with solar panels along the way