I am one of the Volt CAB drivers and thought I could answer a question that has come up a few times on this website. The Volt does not tell you how many kWh are used in the EV mode, but I have a dedicated TOU meter for the Volt charger so I can measure the amount of kWh’s used to charge the vehicle. As an example, during my trip to the electric car meet up in Montclair, NJ yesterday, I drove 110.2 miles total and 44.5 were in EV mode and 65.7 using the gas generator. I burned 1.6 gallons of gas during the trip. But, to answer the kWh question, when I charged the car at home in the evening, the car took 12 kWh of electricty to charge the depleted battery.