Aug. 26, 2015: New-vehicle sales are expected to decline 4 percent year-over-year to a total of 1.52 million units in August 2015, resulting in an estimated 17.2 million seasonally adjusted annual rate , according to Kelley Blue Book Industry sales are expected to decline in comparison to this time last year because auto sales from Labor Day weekend in 2014 were included in last year's August results. This year, the Labor Day weekend sales days will be included in the September 2015 results, so the shift in the timing of Labor Day this year impacts the year-over-year results.