New light-vehicle sales remained at September levels in the fourth quarter of 2020, averaging 16.1 million units a month. November 2020 was the first month SAAR did not increase since bottoming out at 8.6 million units in April. New-light vehicle sales were down by 21.4% for the year, but the fourth quarter SAAR of 48.3 million units represents only a 4.5% decrease from 2019.