Inventories of light vehicles inched downward to a 48-day supply on July 1, from 51 a month earlier.
That was slightly higher than the 46-day supply a year ago. But it was quite a bit lower than the mid-year average for the decade: a 56-day supply.
Ford Motor Co., which set an any-month sales record in June, had a 51-day supply July 1, down from 56 days on June 1.
General Motors, which called June sales its best single month in a decade, reported a 54-day supply, down from 61 a month earlier. GM's subsidiary, Saab Automobile AB, has enjoyed strong sales all year.
But Saab's inventories climbed to 89 days on July 1, up from 78 days June 1.
Inventories at DaimlerChrysler rose to 56 days, up from 53 on June 1.
Toyota Motor Sales U.S.A. Inc. posted record June sales, but its inventories climbed to 39 days, from 32 days a month earlier.
In sales per dealership, Toyota and Lexus again led the pack. Toyota wound up on top in June with an average of 91 deliveries per outlet, six more than Lexus.
Either Toyota or Lexus has been in the top spot each month since February 1998, when Honda was No. 1.
Toyota's 91 sales per dealership in June were down from May's total of 104.
Ford was the highest-ranking domestic automaker.
It was third in June with 83 combined car and light truck sales per dealership.
Next in line in June were Honda, with 81, and Saturn, with 61.