I'm skeptical about Tesla's future, but not because I doubt their product. The Roadster was an amazing, unique vehicle that wasn't priced so high it was unattainable, at least to the moderately wealthy. There are plenty of Mercedes on the road that approach the Roadster's price. I'm skeptical because they weren't able to turn a profit on the Roadster. As far as I can tell, they sold each one for a loss and even then weren't able to produce enough to meet demand.

I have no doubt that the sedan will be an amazing, unique vehicle, but Tesla still has to prove itself at the nuts-and-bolts of the auto business: manufacturing, retailing, and service.