A hybrid electric car is a type of electric car, which engages with more than one power generation. The vehicles or cars having two complementary drive systems are recognised as the hybrid electric cars. The authors also addressed that hybrid cars implement several strategies to control the uses of electric motor, battery and engine. This type of cars characterizes an alignment of the conventional vehicle and the electric cars. It combines the electric drivetrain along with battery, energy storage and sources of refuel able power such as diesel engine for the effectiveness of the car. The source of refuel able power is determined as the on-board power unit and it can renew the storage. In addition, the authors noted that the international market of electric cars or hybrid electric cars has extended to a large extent due to the several factors that include fuel efficiency and eco-friendly . The hybrid electric cars or electric cars are more efficient, smaller as well as lighter (Plotkin & et. al., 2001).
Subsequently, Khan & Kar (2009) stated that hybrid electric vehicles are developed to reduce the disadvantages of gasoline as well as mechanical drivetrain. For instance, Honda civic car is a mild hybrid car with 12kW motor. The goal of the hybrid electric car is to develop the weak gasoline engines. The authors also addressed some factors that affect consumers’ acceptance to hybrid electric cars. Several factors are the limitations of finance, technological challenges, and inadequate information of customers. Due to the low sale of hybrid vehicle, the cost of this car is high. The high cost of the car creates problem of low demand. Not every hybrid car provides the fuel economy. The consumers do not have adequate knowledge about the technology of the hybrid electric car and therefore, they face the problem of maintenance of the car.