In terms of aerodynamics the 458 Spider sets a new benchmark for convertible models. Taking inspiration from F1 single-seaters, Ferrari’s engineers focused their design energies on aerodynamic efficiency, specifically on reducing drag and increasing downforce. The result is that the 458 Spider is about 12 percent more aerodynamically efficient than the F430 Spider. Its nose features two small aeroelastic winglets which generate downforce at the front of the car and, as speed rises, deform to reduce the section of the radiator inlets and cut drag. There are also two side diffusers on the car’s underbody which are set back from the spoiler, and the trailing edges of the rear wheelarches feature a radius that helps guarantee efficient brake cooling, as is the case on the coupé. Major innovations specific to the Spider include the geometry of the double curvature roof, the buttresses, rear nolder, and the intake grilles on the engine cover. The longitudinal roof curvature allows the air flow to quickly re-attach behind the roof, increasing downforce and boosting the efficiency of the rear of the car as a whole, a critical factor for a spider: in fact, the 458 Spider is just as aerodynamically efficient as the 458 Italia. The transverse roof curvature together with the specific buttress design ensures that the air flow hugs the car’s flanks and is efficiently channelled to the engine’s rear air intakes and clutch and gearbox oil radiators. The rear spoiler also features a prominent nolder profile which improves the aerodynamic efficiency of the engine and radiator intakes. The engine cover grilles also have the function of sucking air in from the roof and buttresses, thus helping to cool the engine bay.