A VEHCILE CRASH BOX AND A VEHICLE CRASH BOX STRUCTURE

A vehicle crash box (100a, 100b) for attaching a bumper beam (200) to a vehicle (230). The vehicle crash box (100a) comprises a tubular member (102) having a longitudinal extension (104) extending in a longitudinal direction (106); and an interface (108) for the attachment of the tubular member (102) to the bumper beam (200). The tubular member (102) comprises a plurality of longitudinal walls (110a-d) having a longitudinal extension (112a-d) extending in the longitudinal direction (106). The plurality of longitudinal walls (110a-d) comprises two lateral walls (110a-b) opposite one another. The lateral wall (110a; 110b) comprises two or more lateral sides (114a-c; 116a-c) spaced apart from one another in the longitudinal direction (106). The lateral side (114a-c; 116a-c) has a longitudinal extension (118a-c; 120a-c) and a transverse extension (122a-c; 124a-c). The two or more lateral sides (114a-c; 116a-c) of the lateral wall are aligned in the longitudinal direction (106). The transverse extensions (122a-c; 124a-c) of the two or more lateral sides (114a-c; 116a-c) of the lateral wall (110a; 110b) decrease in a direction (128) away from the interface (108).