Beside solar panels, batteries and lifestyle? Hell, they have just changed their NAME dropping the Motors!!! They must be really serious about this car business...
You can have a Ponzi with a product. The original Ponzi was a stamp arbitrage between Italy and the USA, it was just never played out. Or Amway. Just because they sell products, that doesn't mean their system is less of a pyramid... But when you have a product, you can deny the ponzi nature of the business easier, to those who don't understand business or simple math.
Chances are Tesla will never sell cars profitably... Maybe after the bankruptcy when someone buys them for pennies on the dollar.
Update on the bankruptcy prediction:
http://seekingalpha.com/article/405...ut-capital-raise-skeptics-critics-strike-back
Well, it is capital raise soon or bankruptcy...