Reservations are not sales. They are just something to tout to shareholders. If they wanted real numbers they'd make it non-refundable and up the down payment. The stock trades at an absolutely insane valuation (it's actually valued not too far from massive manufacturers like Ford and GM), the company will have to take on more debt to fulfill the reservations putting the company at liquidity risk. If the orders don't come through and you have increased debt burden, you're gonna have a bad time. This isn't something I'm making up, even the analysts at UBS agree.