What is the body material of the domestically produced Model 3?

[Murphy]

1. The Model 3 adopts an all-aluminum body structure, which is lighter compared to traditional steel bodies, aiming to offset the additional weight from the heavy battery pack as much as possible, thereby enhancing performance and increasing range. 2. The front of the vehicle is made of high-strength steel to withstand common rear-end collisions. On both sides of the front longitudinal crash beams, there are sections of curved ultra-high-strength steel structures, likely designed to handle small overlap collisions such as 25% offset impacts. 3. The sides and rear fenders are constructed from low-carbon steel, which has lower strength and softer hardness, making repairs more convenient for minor incidents like daily scratches. Although it doesn't feature an all-aluminum construction, the Model 3 still manages to keep its weight between 1.6-1.7 tons. With satisfactory range performance, the vehicle's weight hasn't increased significantly compared to gasoline cars of similar size.