You should compare it to something that's near its performance class, since people are obviously not going to buy the Model S just to save money. That's going t

You should compare it to something that's near its performance class, since people are obviously not going to buy the Model S just to save money. That's going to be a future model. At under 5 seconds 0-60, the Model S sport is supposedly going to have performance in the 500 horsepower BMW M5 range, which gets a combined MPG of 13 (11 city, 17 highway). Besides that, the M5 is more like $90k.