Recently, several mainstream automakers have included front and rear side protection bars as standard equipment in their new models, attracting market attention. This device is made of high-strength aluminum alloy and elastic composite materials in a single molding process. In low-speed collisions, it effectively buffers impact force, reducing damage to the body panels, headlights, and other core components, thus lowering repair costs. Data shows that vehicles equipped with side protection bars experience an average 40% reduction in repair costs for minor accidents, while also improving pedestrian collision safety. Industry insiders say that the widespread adoption of side protection bars will drive automotive passive safety features towards a new stage of lightweighting and multi-functionality.