Hybrid electric vehicle (HEV) means a hybrid vehicle where one of the propulsion energy converters is an electric machine.
This larger battery allows the car to be driven on a combination of electric and gasoline fuels. Plug-in Hybrid Electric Vehicle (PHEV) means a vehicle that is similar to a Hybrid but is equipped with a larger, more advanced battery that allows the vehicle to be plugged in and recharged in addition to refueling with gasoline. Related to (na) plug-in hybrid electric vehicle