That is up 5% year-over-year from June 2017, and up 4% from last month.
Click on graph for larger image.
This graph shows the historical light vehicle sales from the BEA (blue) and an estimate for June (red, light vehicle sales of 17.47 million SAAR from AutoData).
This was above the consensus forecast for June.
Note that the increase in sales at the end of 2017 was due to buying following the hurricanes.
Sales will probably move sideways or decline in 2018 after setting new sales records in both 2015 and 2016.
Note: dashed line is current estimated sales rate.