It is a bit early to start predicting September sales, but some early data is in so we can at least see the broad brush strokes.
The most significant item of note is that the first 6 days was strong--at least by recent standards. This makes sense as Labor Day occurred unusually late this year. This took some sales that would normally have occurred in late August in the run up to the Labor Day weekend and pushed them fully into September.
But as we have been seeing all year, when the deals end, sales dry up as well. Sales since Tuesday have plummeted.
Where does this leave the month? Unless something changes, I would say in the low 11M SAAR range.