U.S. auto stock levels barely changed during August, standing at a 61-day supply on Sept. 1, the same level as a month earlier.
In terms of units, inventory was 3,574,300 vehicles on Sept. 1, just 1,900 higher than on Aug. 1.
That followed a July during which stocks fell more than a quarter of a million to 3,572,400, a 7.1 percent decline as the industry sold down vehicles of the outgoing model year.
The 61-day supply on Sept. 1 -- measured by how long inventory would last based on the previous month's sales pace -- was the highest the industry has seen on that date since 2004, when the supply was 65 days.
But the level remains well within the rule-of-thumb ideal of 60 to 65 days.
General Motors climbed to 74 days on Sept. 1 from 66 days a month earlier. That reflected increases in the days supply at Chevrolet, Buick and GMC, while Cadillac declined.
Nissan North America increased by 5 days to 65. Ford Motor Co. and Hyundai-Kia each rose by a single day -- to 78 days for Ford and 52 days for Hyundai-Kia.
FCA US dipped from an 81-day supply to 74 during August.
Toyota Motor declined from 46 to 42 days.
Subaru had the lowest Sept. 1 stock at 21 days, down from 24 a month earlier. Mitsubishi's 127-day supply, up from 107 days, was the highest level.
Volkswagen brand inventory rose sharply in July, by 18,000 units to 92,800, but fell back to 86,500 on Sept. 1. Days supply for the brand declined from 84 to 76.