So, the New York Times has a headline:
China Deflation Fears Raised By Falling Prices For Food and Cars
No. China’s growth is fine, and some products dropping in price is also fine. Car prices are dropping fast because China has a competitive market for car production: they have hundreds. That is driving tech improvements and price competition. This is a good thing, it is not based on “no one has enough money to spend so everyone has to drop prices” which is what caused the Great Depression (the deflationary episode that makes everyone quake.)