Body-on-frame

（重定向自Ladder chassis）

The BMW i3 electric car is one of the rare modern cars with a separate body and frame design (2013).

2007 Toyota Tundra chassis holding the vehicle's engine, drivetrain, suspension and wheels.

Austin A40 Sports, ca 1951. During production, A40 Sports aluminium bodies were built by Jensen (of West Bromwich) and transported to Austin's Longbridge plant for final assembly.[6]

Body-on-frame is an automobile construction method. Mounting a separate body to a rigid frame that supports the drivetrain was the original method of building automobiles, and continues to this day. Originally frames were made of wood (commonly ash), but steel ladder frames became common in the 1930s. It is technically not comparable to newer unibody designs, and almost no modern vehicle uses it (other than trucks).

单词	Ladder chassis
释义	Ladder chassis 英语百科 Body-on-frame （重定向自Ladder chassis） Body-on-frame is an automobile construction method. Mounting a separate body to a rigid frame that supports the drivetrain was the original method of building automobiles, and continues to this day. Originally frames were made of wood (commonly ash), but steel ladder frames became common in the 1930s. It is technically not comparable to newer unibody designs, and almost no modern vehicle uses it (other than trucks).
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