What do all the other $50K sedans have over it? It sure looks [supergreencar.com] like a $50K sedan.
You're basing your argument on it's outward appearance? Isn't that rather shallow/naive?
It's main disadvantage is, of course, it's limited range. While it's fine for most uses, it would still force me to make alternate travel arrangements at least 2-3 times per year. Another issue may be the life-span/replacement cost of the battery packs, although I suspect it wouldn't be a big issue. Other than that, AFAIK there is nothing about this vehicle which would make it inferior to "other $50k sedans", but that's irrelevant because you won't catch me shelling out that kind of cash for ANY car. I don't see a reason to pay such a large premium for, say, a Lexus, when I can get a similar vehicle for $20k less.
Now, if Tesla had managed to package the same technology in a frame that isn't too much smaller for a price under $30k, then yeah, I'd be all over it. Unfortunately it appears that at this point we still don't have a way to make this technology affordable for most people.
Given enough time, and economy of scale, it's quite possible that EV's may retail for prices which are competitive with comparable gasoline fueled vehicles. It might even happen within the next decade. None of that changes the fact that the technology isn't there NOW, let alone 10 years ago.