A structural element includes: at least one hollow metallic body (4) with a closed cross-section, an external surface (24), and at least one adhesion lug (22) formed on the external surface (24); and at least one plastic body (6) which is moulded over the metallic body, covering the external surface...http://www.google.com/patents/US7735226?utm_source=gb-gplus-sharePatent US7735226 - Structural element for a motor vehicle, corresponding motor vehicle, and method for producing one such structural element