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 458 Speciale
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| Ferrari 458 Speciale |
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<< Prev Page 2 of 3 Next >>  One of the car's main characteristics is new Ferrari-patented mobile aerodynamic solutions at the front and the rear of the car which ensure that different aerodynamic configurations can be adopted in cornering, where maximum downforce is essential, and on straights where, instead, drag must be reduced to a minimum.The 458 Speciale has an excellent downforce (Cl) value of 0.53. Thanks to the aforementioned active aerodynamics, the latter does not penalise the Cd which is just 0.35. Of particular note are the innovative solutions adopted at the front of the car, with two vertical flaps in the centre and the horizontal flap below them. At relatively low speeds, the vertical flaps are closed, channelling air into the radiators to guarantee the necessary cooling for the engine. However, at speeds in excess of 170 km/h, the flaps open, reducing the volume of air flowing into the radiators, thereby cutting drag. At speeds of over 220km/h the horizontal flap lowers to balance downforce between the front and rear axles, leading to a 20 per cent shift in overall downforce towards the rear. The turning vanes at either side of the front bumper slow the air flow which increases downforce, thereby shifting the aerodynamic balance 4 per cent over the front. Thanks to their shape, the aerodynamic fins ahead of the rear wheels increase downforce very much in the same way as the front turning vanes. The rear spoiler has a larger surface area and more pronounced shape which has improved the efficiency of the underbody, increasing downforce. Moving the position of the tailpipes also allowed a new diffuser to be designed which optimises the extraction capacity of the underbody. The rear flaps have two different configurations: raised for high downforce and lowered to minimise drag. Sophisticated sensors and a specific algorithm allow the flaps to be lowered by as much as a 17º angle, thereby stalling the diffuser and reducing Cd by 3 points. The 458 Speciale's dynamic behaviour guarantees maximum driving emotions in all situations, allowing drivers to match and improve their own limits with ease and delivering an intense driving experience even at lower speeds. Nimble and responsive, the car is at its best over really twisty routes with demanding switchbacks and camber changes. New technical features have not only improved the 458 Speciale's lap time over single laps, but also the repeatability of that performance on subsequent laps without needing to be a professional driver, offering unprecedented levels of driving pleasure. The 458 Speciale sees the introduction of Side Slip Angle Control (ssC) for more effortless car control on the limit, thereby greatly enhancing driver enjoyment. Thanks to sophisticated new software, which computes lateral acceleration, yaw angle, steering wheel angle and speed, ssC carries out instantaneous analysis of the car's side slip angle, comparing it with reference data, thereby allowing smooth, controllable oversteer, and optimising both torque management (via F1-Trac traction control) and differential torque distribution between the two driven wheels (via the E-Diff electronic differential) for maximum vehicle response times. With the Manettino set at RACE or CT OFF, the 458 Speciale will then make the most of available grip for improved acceleration out of corners, greater ease and control on the limit, and more consistent performance. Also available on request is an advanced telemetry system which records data from track sessions which can then be accessed directly through the multimedia menu or via an external device such as an iPad or laptop. The system uses a series of high-precision GPS antennae installed in the car to pinpoint its position on a pre-loaded circuit or a recordable route. At the end of the session, the Virtual Track Engineer helps drivers analyse their performance, highlighting the main critical errors (e.g. braking too early or too late). To cope with the demands of the car's increased performance, all of the components in the Brembo braking system have been evolved from the solutions introduced on the LaFerrari. The 458 Speciale sports Extreme Design calipers, new generation HT2 discs with a higher percentage of silicon, and smaller front pads made from HY hybrid material for improved heat dissipation which is also boosted by special channels in the bodywork and is crucial in extreme driving situations. The result is shorter stopping distances (100 - 0 km/h in 31 m) without any compromises in weight, and more consistent performance under severe use. Part and parcel of the Speciale's development included Michelin Pilot Sport Cup2 tyres which were specifically honed for it in an intensive collaboration programme involving lengthy track tests and simulator sessions. Specially made for the 458 Speciale, they feature a compound obtained using specific additives to boost performance over a single lap in the dry as well as improving performance consistency over multiple laps. They also deliver 6 per cent more grip, which also translates into better grip even in the wet. The forged 20" wheels feature a new design, resulting in a weight reduction of over 12 kg. Thanks to being very flat through corners, the 458 Speciale is extremely efficient and satisfying in faster, sharper, more challenging changes of direction. This is due partly to its Frequency-Shaped SCM-E (Frs SCM-E) dampers which have twin solenoids, new CPU and new software that modifies the magnetic field every millisecond. The result is a much faster response and more precise body control. These technical features guarantee exceptionally fast response to inputs from the road or the steering (0.060 s) and mean the car can deliver 1.33 g of lateral acceleration, a combination that ensures a genuinely extraordinary experience behind the wheel. The car, in fact, responds instantaneously and is easy to drive on the limit in all types of situations. Like the rest of the car, the 458 Speciale's soundtrack is both seductive and uncompromising, thanks to unprecedented intensity inside the cabin as well as outside. The position of the tailpipes lends the V8 the full-bodied low frequency soundtrack typical of Ferrari's sportiest engines while the configuration of the silencers is designed to guarantee maximum intensity and exceptional clarity. The immense power and full-bodied nature of the sound inside the cabin were achieved by redesigning the inlet tract. The F1 dual-clutch transmission now features a new control logic that delivers an even keener sense of urgency during gear shifts. The car feels much sportier as it shifts up through the gears, with response time to commands more prompt than ever, thereby guaranteeing 40 per cent faster longitudinal acceleration with engine revs adapting 20 per cent more rapidly. Conversely with the Fast-Down Shift strategy, when down-shifting, the transient time required for engine revs to match the gear ratio is 44 per cent faster. << Prev Page 2 of 3 Next >> |
| Article | Image gallery (57) | Chassis (2) | Specifications | User Comments (1) |
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