The need for a more efficient power source has been felt centuries ago. It started the concept of harnessing two different energy sources to power up a single motor and the earliest record of application dates back to the 1800s. During those days, prototypes of motorized bicycles used both human and motor energy to add more torque to the vehicle. Since the technology was too promising to let go, experts continued to develop the technology and were able to use it on a bigger vehicle.

Power trains are among the early examples of hybrid vehicles. These trains are diesel-electric powered are more efficient the conventional single source energy motors. Sail boats also use hybrid, they use the sail and the engine to work together to make the boat run efficiently. With all the promising applications, it is obvious that this technology is a simple yet better alternative power source.

Presently, hybrid vehicles are more commonly associated with cars. More and more people are switching to the hybrid models. Since hybrid cars were available, users were more than satisfied with all the benefits it offers. The main problem of developing hybrid vehicles is the increasing cost of raw materials, but surely this dilemma will be solved in the near future.