MPG is Deceptive

"People pretty much rank order things in terms of linear improvement in miles per gallon. So, the bigger improvement in miles per gallon, that's what they think is better. That turns out not to be the case. mathematically."

"If we stick with the idea that they drive both vehicles a hundred miles per week, we can just simply ask, 'How much gas is being used?', based on each of the current vehicles.