Click to enlarge.
The irresistible force in blue is just about to hit the immovable wall in red.
In my opinion, this "sure thing" growth "driver" is just about over. It's possible that we crash through the wall a bit, but it's not sustainable over the long-term.
October 1, 2013
Auto Sales Fell in September, Hurt by Early Labor Day
“September had only 23 selling days,” said Kurt McNeil, G.M.'s vice president for United States sales operations. “All of this goes a long way in explaining the month-to-month decline” in the annual rate of industrywide sales.
You will note that he said it goes a long way. He did not say it goes the entire way. Go figure.
St. Louis Fed: Custom Chart