The expected delivery date for the entry-level Model Y was also shortened by two weeks just two days ago.

(Vehicle information displayed on Tesla's China website on August 8.)

These changes may be related to the production line upgrades at Tesla's Shanghai plant, which currently only produces the Model 3 and Model Y.

On July 22, local media outlet Auto Time reported that Tesla began upgrades to Giga Shanghai in July, with the line responsible for producing the Model Y completing the upgrade on July 16.

The production line responsible for producing the Model 3 sedan began the upgrade on July 17 and is expected to be completed on August 7, according to the report.

As a result of that upgrade, Tesla China saw a significant drop in sales in July.

Tesla China's wholesale sales in July were 28,217 units, down 64.24 percent from 78,906 units in June and down 14.41 percent from 32,968 units a year ago, according to data released by the China Passenger Car Association on August 9.

Tesla China exported 19,756 vehicles in July, meaning 8,461 vehicles were delivered to local consumers.

In addition to the adjustment in expected delivery dates, the Tesla China team said yesterday that the China-made Model Y now comes standard with an additional far-side airbag across the lineup.

The airbag, which is mounted on the inside of the main driver's seatback, reduces contact injuries between front occupants in the event of a possible side collision with the vehicle.

Tesla's entry-level Model Y wait time gets shorter in China