The wheel house is the part of an automobile's body which covers the inside and top of the rear wheels. It is seen on the inside of passenger cars as a rounded cylinder on each side (one for each wheel), generally immediately behind or to the sides of the back seat in cars which have one. It is made out of sheet metal (almost always steel) in order to be able to resist the force of being struck by the wheel if the suspension collapses. In unibody cars the wheel house is a structural component and helps bear load and distribute it through the body. (See also: monocoque) In four-door cars there is a C-pillar which wraps around the wheel house; the place where it curves to go around it is called the dogleg. In cars with a live axle rear suspension, the raised area between the wheel houses for the suspension to rise into is known as the kick-up area.

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