Sentence:  The Negro was lying in a ditch on the left side of the road, face down, headed west, and the body more or less parallel to the road and about a car length behind the <WSD>station wagon</WSD> and a car length in front of Price′s car. 
Meaning of the word marked with <WSD> tags:  A body style for cars in which the roof is extended rearward to produce an enclosed area in the position and serving the function of the boot (trunk) of a sedan / saloon.