Average efficiency of a car in 1970 was 11 MPG. Today we are at an average of 25 MPG (and that's only because gas is still too cheap) and many non-electric cars get up to 40 MPG. Newer electric cars like the Model 3 are at about 130-150 MPG.

As the transition to electric cars accelerates, our energy use will see a significant decline. Transportation makes up 35% of our total energy use in the US. Going from an average of 25 MPG to a conservative 50 MPG will have major impacts on our energy sector.