小米SU7，车门抛弃了常见的机械式外把手

Core Viewpoint - The article highlights safety concerns regarding the design of the Xiaomi SU7's door handles, particularly the absence of mechanical external handles, which complicates emergency access during accidents [3][4][6]. Group 1: Incident Overview - On October 13, a Xiaomi SU7 caught fire after a collision in Chengdu, and rescuers struggled to open the doors, ultimately requiring firefighters to use a cutting tool [3]. - This incident occurred 198 days after a previous fire incident involving the same model, raising alarms about the vehicle's safety features [3]. Group 2: Design Flaws - The Xiaomi SU7 lacks a mechanical external handle, relying solely on an internal micro-switch for electronic unlocking, which poses risks in emergencies [4][6]. - The internal emergency handle, while present, may be difficult for unconscious occupants to locate and use quickly, especially in a rapidly deteriorating situation [6][11]. Group 3: Industry Standards and Reactions - Industry experts criticize the design choice of the Xiaomi SU7, noting that most vehicles with hidden handles include safety redundancies to ensure accessibility during power failures [6][10]. - New regulations are being proposed to mandate mechanical handles for vehicle doors to enhance safety, reflecting a shift in industry standards [10][11]. Group 4: Cost Implications - Transitioning from hidden handles to traditional mechanical designs involves significant costs, including redesigning electrical systems and molds, which may deter manufacturers from making changes [13][14]. - The potential need for recalls to upgrade existing vehicles with hidden handles is complicated by the large number of such models on the market and the associated costs [14].