I agree with the sentiment that they are really terrible cars in general, but they seem to have cracked the EV efficiency riddle, almost no one else can come close to their miles/kWh numbers in real life usage. I don't know how they do it, but it's just consistently at the top of the league among EVs.
It's aerodynamics, pure and simple. The Model 3 coefficient of drag is very low. It's one of the reasons the Model 3 looks a little weird.
It's pretty easy to replicate by other manufacturers, but aerodynamics is just one factor in a large number of tradeoffs made by a manufacturer when designing a car.
