With all the brand comparison you miss one major fact. A fact why all other brands will still be many years behind Tesla. That fact is called "Supercharger network". Go ahead and buy your Mercedes, Porsche or Audi, but tell me how to charge on a long distance? There is no charger network anywhere. On top of it, the public chargers in the cities are more and more occupied by tiny city cars, car-to-go shared cars, etc. In other words - it is not easy to charge your car on a trip except it is a Tesla and you can use the charging network. Therefore - Tesla is the only choice for a full-electric vehicle right now and probably in the next 5 years.