GAC AION Smart Ecological Factory is the first in the world to use aluminum riveting and spot welding changeover technology, has a 「steel-aluminum hybrid」 production line, and makes better-quality and safer lightweight vehicle bodies in response to the application of lightweight materials (e.g., aluminum alloys) in the future. The GAC NE Aion S uses a hybrid vehicle body with high-strength steel and an aluminum alloy lower body to realize world-class safety and lightness, and maximum occupant protection.