We had efficiency answered decades ago during the 70s fuel shortage. Big oil didn’t want to normalize cars like the Vega, Moodymobile, VW Rabbit, later the Geo Metro. They wanted us to burn more oil not less. And that hasn’t changed. Cars don’t need to be designed in wind tunnels.
Dude my brother-in-law.
Fuckin’ aliens built everything! Baghdad Batteries? Aliens. Pool of mercury in a pyramid? Alien Power Cell that we don’t understand yet.