So I am in the camp that believes demand is not an issue at all. Also, as EV-Enthusiast has pointed out, Tesla manufactured almost 13k Model S in Q2, so Q3 should have been around that too. So going from 13 to 15k for Model S should not be a major problem for production and that would leave only 1,800-1,900 Model X, or roughly the North America sigs "and some change" to be delivered. In theory production should be able to keep up with that.Maybe someone else said this, but it is plausible that model S could sell 16k units just due to the "reverse-Osbourning" effect. Now that the X is released there could easily be enough fence-sitters who realize they can pass on the X to have unusually high model S demand.
The question is, can the sales/delivery/logistics team handle this. I week of bad winter in NA and Europe could have a negative effect on deliveries...