Chinese electric vehicle Weltmeister Motor (WM Motor, 威马汽车) had one of its EX5 test vehicles spontaneously combust at its research institute in Chengdu,  according to local media.

The news comes at a bad time for the Chinese electric vehicle maker—the explosion occurred on August 25, just one month before a mass delivery of the cars to customers.

The vehicle, which was an early test model that had recently been subjected to multiple rounds of destructive testing, allegedly ignited during dismantling procedures. The company said that the process was not completed after circuit protection devices were removed, causing a short circuit.

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Chris Udemans

Christopher Udemans is a Shanghai-based data and graphics reporter. He covers Chinese artificial intelligence, mobility, and cybersecurity. You can contact him at chrisudemans [at] technode [dot] com.