On May 25, 2025, four Xiaomi SU7 sedans were involved in a chain-reaction collision in Hefei, Anhui Province. All vehicles were part of a wedding convoy, and the unusual scene of four identical EVs rear-ending each other quickly went viral across Chinese social media platforms, sparking widespread discussion.

According to eyewitness accounts and widely circulated videos on Weibo, the crash occurred when the lead vehicle in the SU7 convoy braked abruptly, triggering a sequence of rear-end collisions among the following cars. All four sedans were decorated as part of a wedding fleet, with red ribbons and colourful paint jobs — including pink variants — highlighting their celebratory role.

The incident took place on a city road during daylight hours. While the vehicles suffered visible front and rear damage, no injuries were reported. All passengers and drivers were confirmed safe, and the accident was categorised as a minor traffic incident.

The incident rapidly became a trending topic on Weibo and Douyin (China’s version of Tiktok), where users shared memes, reactions, and amateur footage of the crash. Many commenters poked fun at the situation, calling it a case of “a happy occasion turned bad,” while others expressed relief with phrases like “broken pieces bring peace” (碎碎平安), noting the lack of injuries.

Some posts questioned whether Xiaomi’s autonomous emergency braking (AEB) system failed to activate, but there is no evidence linking the crash to a technical malfunction. Traffic safety commentators instead cited the typical risks of wedding convoys — close tailing, sudden stops, and lack of communication — as more likely causes.

The Xiaomi SU7 has recently surged in popularity as a wedding convoy vehicle thanks to its stylish design, EV appeal, and wide range of colour options. Often used alongside or in place of traditional luxury brands like Audi, BMW, and Porsche, the SU7 has become a go-to model for modern wedding fleets.

As of this writing, Hefei traffic police have not issued a detailed statement regarding the cause or liability. In multi-car rear-end accidents, Chinese traffic law typically holds trailing drivers responsible for not maintaining safe distances. Safety experts and traffic authorities recommend that wedding convoys adopt clearer spacing protocols, utilise in-car communication tools like walkie-talkies, and avoid over-prioritising visual impact at the expense of driving safety.