After enjoying my Model S for almost a year, I decided to dig into some detail about what really goes on under the hood! My MS in Electrical Engineering taught me a lot, and I had a wonderful 52-year career designing circuits and many of the inner workings of the car, but a knowledge of drive trains and differentials was unneeded (and absent) for the work I did. Now, after retirement, I decided to dig into enough detail to bring my understanding of this fine piece of engineering to a new level. Below are links to YouTube videos explaining (first) the overall picture, and then the details of the motor and differential. I willingly let friends drive my S, but first they must watch the first ten-minute video, as I think it’s necessary if they’re to appreciate what’s under the hood. How the Tesla car works: How the motor works: Tesla's 3-Phase 4-Pole AC Induction Motor -- Why Nikola Tesla’s 19th Century Induction Motor Is The Ideal Choice For The 21st Century Electric Car | CleanTechnica AND: Open vs. Locked differential: How a differential works: Tesla’s limited-slip differential: How does Model S Traction Control work? I hope you enjoy the fruits of my research! Comments welcomed.