(Bloomberg/Linda Lew) — Deliveries from Tesla Inc.’s Shanghai factory extended their slump in August as new products launched by Chinese rivals win over customers and global trade uncertainties persist.

The electric vehicle maker shipped 83,192 units from the plant last month, according to preliminary data released by China’s Passenger Car Association on Tuesday, which didn’t break the figures down into exports and domestic sales. That’s down 4% from a year earlier and shipments have dropped in seven out of eight months this year.

The prolonged weakness underscores multiple challenges facing the Elon Musk-led carmaker. China is Tesla’s largest overseas market, but a long-running price war and the popularity of attractively priced, tech-heavy models from local rivals like BYD Co. and Xiao

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