UTC But is either correct usage of the term actually the correct description for the construction of the Aventador It is a carbon fibre cockpit passenger cell with aluminium subframes on the front and back Since the subframes bear the weight and stresses of the suspension and drivetrain surely this makes it not a full carbon fibre monocoque chassis In fact in the Wikipedia monocoque article it claims The term is also used to indicate a form of vehicle construction in which the skin provides the main structural support although this is rare and is usually confused with either semi monocoque or a unibody and goes on to include an image of the Aventador with the caption Unibody as used for the supercar Lamborghini Aventador LP700 4 linking back to this very article There is very little stress carried by the Aventador s skin 10 04 11 September 2013