Of all car companies Porsche is the one most threatened by the success of Tesla. I'm sure Model S has taken a lot of Panamera sales from Porsche. By next year Model X will do the same, and likely even more, harm to their cash cow Cayenne. Porsche might have to go back to what they were before, a struggling 911 maker, if they are not careful. Then they have to worry about the Roadster II which was said to be something "you have never seen before". I have always been a Porsche lover and a current Porsche owner but I really think they are into a very tough time because of Tesla