Since hitting a low of 9 million in annualized auto sales in 2/09, strong demand has propelled new-car sales to 15.3 million as of 5/13. However, sales have flat-lined of late and are barely higher than in 1/13. This is in part why manufacturing growth is weakening. Yet automakers are cranking out more cars than ever. Thus, expect bigger cash-back deals, better rates, and more subprime loans to juice sales.