The small upright SUV is of steel unit body construction. (roadandtrack.com)
The unit - body part of the Insight's body uses stressed sheet - metal panels to absorb and distribute structural and suspension loads, much like an ordinary steel unit body. (topspeed.com)
The heat given off by the body is measured in a given amount of time and is expressed in calories burnt / unit body mass / unit time. (foodpyramid.com)