Method of making a vehicle compartment from a cylindrical tube

摘要: Unitary vehicle body compartment structures of the type comprising wall members and/or interconnected frame that define surface a cylinder are made by providing tube is initially smaller than and expanding at least portions to shape structure. Functional openings such as windows trimmed from deformed further compartment. A complete may be assembled attaching two or more compartments as, e.g., passenger compartment, an engine luggage Tube segments also employed make parts doors hoods.