The 458 Spider’s architecture was developed around the retractable hard top concept with the aim of delivering exceptional handling, safety and lightness. Its second generation aluminium chassis is made at the Polo Scaglietti facility in Modena, a centre of excellence in aluminium fabrication which not only benefits from Ferrari’s own in-house skill-set but also associated universities and technical partners worldwide. Several different types of aluminium alloy are used to make the 458 Spider’s chassis, each one with its own specific function: two alloys are used to produce thinner castings (30% thinner than the first generation); five high resistance alloys were used for the extrusions (yield strength is 80% higher than on previous alloys); three for the thin panelling (-25%); specific alloys were also used for the front and rear crash boxes to guarantee maximum energy absorption. Alongside these high-tech materials, Ferrari also uses the most advanced forming technologies (including Superplastic forming to make highly complex shapes less than 1 mm thick). Various different joining techniques were also adopted to reduce weight and to deliver a high standard of structural rigidity. Significant attention was also focused on minimising the number of components in the car (particularly in the case of the door structure), to improve both performance and safety. New solutions include more robust sills and the introduction of structural buttresses which considerably increase torsional rigidity and beam stiffness (both + 23 per cent compared to the Ferrari F430’s figures). The latter also provide roll-over protection, a function normally the sole domain of two highly visible roll-bars. This solution guarantees an exceptional standard of safety and easily exceeds the most severe safety requirements in this regard.