小米SU7，车门抛弃了常见的机械式外把手

Core Viewpoint - The recent incident involving a Xiaomi SU7 highlights significant safety concerns regarding the design of car door handles, particularly the absence of mechanical external handles, which complicates emergency rescues [2][3][4]. Design and Safety Concerns - The Xiaomi SU7 lacks a mechanical external door handle, relying solely on an internal micro-switch for electronic unlocking, making it difficult for external rescuers to open the door [3][4]. - Industry standards typically require hidden door handles to have a mechanical backup for safety in case of power failure, which Xiaomi's design does not incorporate, potentially compromising safety during accidents [3][4]. - A study indicated that vehicles with electronic door handles have a significantly lower success rate (67%) in opening after side collisions compared to those with mechanical handles (98%) [4]. Regulatory Response - New regulations are being proposed that mandate the inclusion of mechanical external and internal door handles to ensure safety in emergencies, particularly in scenarios involving power loss or accidents [6]. - The regulations require that the mechanical release functions be easily identifiable and operable by occupants in distress [6]. Industry Reactions and Adjustments - Several automakers are beginning to adapt their designs in response to the new regulations, with some opting for traditional mechanical handles instead of hidden ones [7][8]. - The transition from hidden to traditional handles involves significant redesign and cost implications, as it requires changes to electrical systems and molds [8]. - Experts suggest that the large number of existing vehicles with hidden handles poses challenges for potential recalls or upgrades to meet new safety standards [8].