Stockpiles at new-vehicle stores marketing Chinese brands remained well above the 36-day upper limit of the normal range last month, in spite of the sustained market recovery.
In September, the average backlog at dealerships stocking Chinese brands edged up to 51.3 days from 50 days the previous month, according to the China Automobiles Dealers Association.
Average inventory levels at stores marketing luxury brands and imported foreign brands rose to 39 days from 36 days in August.
Stores that distribute China-built, foreign mass-market brands carried an average 47-day supply, virtually unchanged from a month earlier.
The association attributed the high inventory levels at dealerships under Chinese brands to intensifying price pressure they face from global rivals.
To stimulate demand after the coronavirus outbreak was largely contained in China, global mass-market brands have cut vehicle prices by an average of 20,000 yuan ($2,985), the dealer trade group said in a report this month.