I checked the Q3 email [1] and while it is indeed about motivating their teams to reach profitability, it doesn't mention any discount.

Here you go:

[1] http://www.bloomberg.com/news/articles/2016-09-06/full-text-...

This email does not mention anything about discounts. It does not even mention sales. It does talk about "building and delivering every car we possibly can".

I think GP just linked to the email because I cited it but forgot the link.