Here is an article which expounds on Elon Musk's tweets from last weekend regarding the Model 3 powertrain. Includes first complete photo of the motor.
More Tesla Model 3 Powertrain Fun. From Carburetors To Carborundum. You've Come A Long Way, Baby! | CleanTechnica
More Tesla Model 3 Powertrain Fun. From Carburetors To Carborundum. You've Come A Long Way, Baby! | CleanTechnica