That probably holds true in case they have the same usage patterns. Does your theory still hold if I drive only 2000km/year in an older car versus a Tesla X or

That probably holds true in case they have the same usage patterns. Does your theory still hold if I drive only 2000km/year in an older car versus a Tesla X or e-Hummer? I don't pretend to have the answer to that question, but there is an environmental cost to producing a car too...