Yes, for the petrol car it's showing primary energy from petrol (gasoline). https://en.wikipedia.org/wiki/Gasoline_gallon_equivalent#Gasoline_gallon_equivalent

Yes, for the petrol car it's showing primary energy from petrol (gasoline). https://en.wikipedia.org/wiki/Gasoline_gallon_equivalent#Gasoline_gallon_equivalent_tables https://en.wikipedia.org/wiki/Gasoline_gallon_equivalent#Gas... Assuming 33.41 kWh/gallon it takes about 0.3 gallons to get 10 kWh, which costs $0.97 at a pump price of $3.23 per gallon.