Autoclaved carbon-fibre bodywork is employed throughout, Kevlar® reinforced locally for resistance to abrasion and stone/impact damage to provide the lightest, stiffest and most heat-resistant aerodynamic envelope to the mechanical structure beneath. To make the most of the airflow beneath the car, the full-length underbody starts with a pitch sensitivity reducing front splitter/underwing and safety structure and ends in an efficient rear venturi. The side and upper surfaces are sculpted to provide effective radiator, brake and cockpit cooling while minimising drag and assisting airflow to the full-width adjustable rear wing. Good overall downforce and balance is achieved, ideal for differing tracks and grip conditions, and – together with the well developed suspension geometry and inherently better mid-engine weight distribution and low c of g - aids in the vitally important reduction of tyre performance degradation between pit-stops.