The Mercedes-Benz safety cell is the centrepiece of the safety system. It has a structure of hot-formed high-strength steel cross-members in the areas of the firewall and rear end. At the sides this is complemented with extremely rigid side sills of extruded aluminium sections, which are larger than in the preceding model, with four internal chambers.
The floor structure likewise has ultra high-strength and press-hardened steel alloys combined to form a highly functional platform. The loads arising in all impact scenarios are conducted into the main floor. The robust centre tunnel and the lateral side members provide the basis for this. These assemblies are connected using further cross-members and diagonal struts. The design of this support structure makes the use of lighter floor panels possible. These make a major contribution to weight efficiency. The load resistance of the tunnel, which is especially important for frontal impacts, is achieved using connected sections of high-strength steel. The wall thicknesses vary according to expected loads.
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