The controversy began after Dongchedi released a video showing three new Maextro V800 vehicles undergoing emergency braking tests from 100 km/h to 0. During the second to fourth heavy braking attempts, the brake pedal brackets in all three vehicles physically fractured.
Following the publication of these results, Dongchedi's safety test lead, Dongmen Jiannan, reported being targeted by a massive wave of spam text messages. The tester publicly acknowledged the situation by sharing the manufacturer's official statement on Weibo with a brief comment.
Maextro responded by stating that its braking systems meet standards exceeding national requirements, specifically GB 21670-2025, GB 7258-2026, and industry standard QC/T 788-2018. The company claims no such failures have occurred in real-world usage since the first deliveries.
The manufacturer characterized the Dongchedi test as a non-standard, extreme scenario. In contrast, the media outlet maintains that a 100 km/h emergency stop is a fundamental test subject relevant to high-speed driving conditions and poses a safety concern.
