ICE cars had an electric motor, a battery and an alternator since the earlier 20th century. Without those they were not very practical and required the driver t

ICE cars had an electric motor, a battery and an alternator since the earlier 20th century. Without those they were not very practical and required the driver to manually crank to start the engine. PHEV do not add a second power train, they just have a beefier electric system than a regular car and a charger.