AUSI, Australien Universal Space Industries have developed a hybrid vehicle that makes use of four clean energy resources,
 Liquid nitrogen
 Compressed air
Electrolysis of water produces hydrogen from a water tank which gives extra kick to the combustion engine & the Heat exchanger where liquid nitrogen is then fed from the heat exchanger into the pneumatic motor while being mixed with compressed air. The vehicle can also be Aerodynamically designed & covered with solar panels to give extra energy to the hydrid synergy drive. The vehicle also makes use of Regenerative brakes.