Comment by philipkglass

Yes, for the petrol car it's showing primary energy from petrol (gasoline).

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.