Non è stata solo la mitica Porsche 911 – presente nella gallery sotto – ad entusiasmare quanti hanno avuto la fortuna di assistere al Goodwood Festival of Speed 2013, tra le protagoniste, infatti, c’è stata anche l’innovativa Porsche 918 Spyder. Dalla Nordschleife del Nürburgring alle strade di Milano, nella livrea Martini, alle strade della contea di Goodwood, nel famoso circuito costruito attorno all’aeroporto militare, la Porsche 918 Spyder, vettura indubbiamente non comune, non è passata di certo inosservata.
Idonea sia all’uso quotidiano che su pista, accoppia un motore termico ad elevate prestazioni a due propulsori elettrici, all’asse anteriore e posteriore che le consentono di offrire performance eccezionali e un’efficienza sorprendente.
Sul circuito, lungo i vialetti della nobiliare residenza, fino in cima ad una collina dove si allevano i fagiani, su milleottocentosessanta metri d’asfalto, delimitate da balle di paglia, la 918 Spyder ha messo in evidenza i vantaggi, in termini di dinamica di guida, offerti dalla trazione ibrida di un’auto che per tecnologia e prestazioni (anche in termini di consumi) rappresenterà il benchmark per le vetture supersportive per il prossimo decennio. Di seguito, dopo le caratteristiche tecniche della vettura in lingua inglese, vi regaliamo alcune delle più belle immagini del Festival of Speed 2013.
Specifications of the Porsche 918 Spyder
Body: Two-seat Spyder; carbon fibre reinforced plastics (CFRP) monocoque interlocked with CFRP unit carrier; two-piece Targa roof; fixed roll-over protection system
Drivetrain: Parallel full hybrid; 4.6-litre V8 mid-engine with dry-sump lubrication; hybrid module with electric motor and decoupler; electric motor with decoupler and gear unit on front axle; auto start/stop function; electrical system recuperation; four cooling circuits for motors, transmission and battery; thermal management
Engine power: 608 hp (447 kW) at 8,600/min (V8 engine)
115 kW (hybrid module on rear axle)
95 kW (electric motor on front axle)
887 hp (combined)
Max. torque: 530 Nm at 6.600/min (V8 engine)
1,275 Nm (crankshaft equivalent combined, 7th gear)
1,086 Nm (combined, 3rd gear)
> 800 Nm (800/min – 5.000/min)
Maximum Revs: 9,150 rpm
Power output per l: 132 hp/l (V8 engine)
Power transmission: Combustion engine with hybrid module and transmission bolted together to form a single drive unit; seven-speed Doppelkupplungsgetriebe (PDK); rear-wheel drive; front electric motor with gearbox for driving the front wheels (decoupled from 235 km/h); five pre-selectable operating modes for optimum coordination of all drive units
Gear ratios PDK
1st gear 3.91
2nd gear 2.29
3rd gear 1.58
4th gear 1.19
5th gear 0.97
6th gear 0.83
7th gear 0.67
R gear 3.55
Final drive ratio 3.09
Clutch diameter 220 mm / 164 mm
Chassis and Suspension: Double-wishbone front axle; optional electro-pneumatic lift system on front axle; electro-mechanical power steering; multilink rear axle with adaptive electro-mechanical system for individual rear wheel steering; electronically controlled twintube gas-pressure dampers in the front and rear with Porsche Active Suspension Management (PASM)
Brake system: High-performance hybrid brake system with adaptive recuperation; internally ventilated and perforated front ceramic brake discs (PCCB), 410 mm in diameter and 36 mm thick; rear discs 390 mm in diameter and 32 mm thick
Wheels and tyres: 918 Spyder wheels (Weissach package: 918 Spyder magnesium wheels)
front 9.5 J x 20 with 265/35 ZR 20
rear 12.5 J x 21 with 325/30 ZR 21
Weights:
Kerb weight, DIN 1,640 kg (‘Weissach’ package)
Dimensions:
Length 4,643 mm
Width 1,940 mm
Height 1,167 mm
Wheelbase 2,730 mm
Track width front 1,664 mm, rear 1,612 mm
Luggage compartment capacity, VDA ~ 110 litres
Fuel tank capacity 70 litres
Energy supply: Lithiumion battery with 6.8 kWh capacity (BOL nominal), 220 kW maximum power and mains-compatible plug-in charger.
Performance:
Top speed > 340 km/h (211 mph)
purely electric 150 km/h (93 mph)
Acceleration:
0 – 62 mph 2.8 s
0 – 124 mph 7.9 s
0 – 186 mph 23.0 s
Consumption (NEDC): Total ~ 3.3l/ 100km (85.6 mpg)
CO2 emissions: Total ~ 79 g/km
Range: Purely electric approx. 30 km (18 miles)
Warranty: Vehicle 4 years, Battery 7 years
Priced (UK) from 781,155 Euro – ‘Weissach’ package 853,155 Euro
