In car design, there are two fundamental layout. One of them is body-on-frame, when both the body of the car and the chassis are attached to a separate frame. The other one is when the chassis and the powertrain are attached to the body directly. What is this layout called?

Most modern cars feature the unibody construction - there is no separate structural element to which the parts of the car are attached. The unibody layout tends to be lighter and cheaper - at the expense of sturdiness and off-roading capabilities. That's why most older SUVs and off-roaders are body-on-frame.

Asked by Vasilii Kulev · Last updated 5 years ago · 2.4K views · SOURCE