FlatSix911
Porsche 918 Hybrid
Based on my observation not personal knowledge of the man, Elon is a perfectionist. The way the X has been designed is one indicator. I was told by a Tesla employee I know that Elon thought of the bio-defense mode air filtration system after driving his Model S from Palo Alto to the Fremont factory and passing a large odiferous landfill nearby that really stinks when the wind blows the wrong way.
Welcome to Alviso ... "Where the sewer meets the sea."