>>Porsche 918

Porsche 918

Porsche 918 Spyder

Manufacturer	Porsche
Production	Limited production series
Predecessor	Porsche Carrera GT
Successor	TBA
Class	Roadster
Body style	2-door roadster
Layout	Mid engine four wheel drive
Engine	3.4 L 500 horsepower (370 kW) V8(9,200 rpm) with three electric motors delivering 218 horsepower (163 kW)
Transmission	7-speed PDK dual-clutch
Wheelbase	2,650 mm (104.3 in)
Length	4,497 mm (177.0 in)
Width	1,928 mm (75.9 in)
Height	1,091 mm (43.0 in)
Kerb weight	1,490 kilograms (3,300 lb)
Designer	Michael Mauer

The 918 RSR at the NAIAS 2011

The 918 RSR at the Geneva Motor Show

The Porsche 918 Spyder is a mid-engined sports car designed by Porsche and first shown as a concept at the 80th edition of the Geneva Motor Show in March 2010. The Spyder is powered by a 3.4 litre V8 engine, developing 500 horsepower (370 kW), with three electric motors delivering an additional 218 horsepower (163 kW). It is the first plug-in hybrid car from Porsche. Porsche later announced a limited production of the vehicle.

At NAIAS 2011, Porsche unveiled the RSR racing variant of the 918, which combines hybrid technology first used in the 911 GT3 R Hybrid, with styling from the 918 Spyder.

Spyder

The 918 Spyder is a mid-engined two seater sports car, designed by Michael Mauer, that is powered by a 3.4 liter V8 engine (500 hp/370 kW) which is a development of the engine used in the RS Spyder Le Mans Prototype racing car. This is supplemented by three electric motors delivering an additional 218 horsepower (163 kW). The transmission is a 7-speed gearbox coupled to Porsche's own (PDK) double clutch system delivering power to the rear axle. Two electric motors drive the front wheels directly through a fixed ratio while a third electric motor is connected to the transmission and gives additional power to the rear wheels. This gives the 918 Spyder a 0–100 km/h time in just under 3.2 seconds and a top speed of over 320 kilometres per hour (200 mph). The energy storage system is a liquid-cooled lithium-ion battery positioned behind the passenger cell. In addition to the plug-in recharge the batteries can also be charged by regenerative braking and by excess output from the engine when the car is coasting. CO₂ emissions are 70 g/km and fuel consumption is 3 L/100 km (94 imperial mpg/78 us mpg). The 918 Spyder offers 4 different running modes: E-Drive allows the car to run under battery power alone, using the rear electric motor only, giving a range of 16 miles (26 km). Three hybrid modes (Hybrid, Sport and Race) use both the engine and electric motors to provide the desired levels of economy and performance. In Race mode a push-to-pass button is available to deliver additional electrical power.

The chassis is a carbon-fibre-reinforced plastic monocoque. Magnesium and aluminium are extensively used in the construction of the car which helps keep the 918 Spyder's weight down to 1,490 kilograms (3,300 lb).

On July 28, 2010, after 2000 declarations of interest, the Supervisory Board of Dr. Ing. h.c. F. Porsche AG, Stuttgart, gave the green light for series development of the Porsche 918 Spyder.The 918 will be produced in a limited series. It will be developed in Weissach and assembled in Zuffenhausen.

RSR

At the 2011 Auto show in Detroit, Porsche unveiled the RSR racing variant of the 918 Spyder. Instead of using plug-in hybrid technology, power for the two electric motors is provided by a flywheel accumulator KERS system that sits beside the driver in the passenger compartment. The V8 is a further development of the direct injection engine from the RS Spyder race car developing 563 horsepower (420 kW). The electric motors on the two front wheels each provide an additional 102 horsepower (76 kW), giving a peak power output of 767 horsepower (572 kW). The six speed gearbox is a development of the unit from the RS Spyder.

Video games appearances

The 918 Spyder is subject to numerous video games appearances, most notably in several games of the third generations of Need for Speed series. It was originally featured in the game Need for Speed: Hot Pursuit as a drivable vehicle. Unlike the other Porsche cars featured in the game, it is not available in a police livery. It was later featured in Shift 2: Unleashed and Need for Speed: The Run (The Run only featured the RSR variant).

>>Porsche Carrera GT

Porsche Carrera GT

Porsche Carrera GT

Manufacturer	Porsche
Production	2004–2006 (1,270 produced)
Assembly	Leipzig, Germany
Predecessor	Porsche 911 GT1 Straßenversion
Successor	Porsche 918 Spyder
Class	Sports car
Body style	2-door roadster
Layout	RMR layout
Engine	5.7 litre DOHC V10
Transmission	6-speed manual
Length	4,623 mm (182.0 in)
Width	1,930 mm (76 in)
Height	1,168 mm (46.0 in)
Curb weight	1,380 kg (3,000 lb)
Related	Porsche 918 Spyder

The Porsche Carrera GT (Project Code 980) is a mid-engined sports car that was manufactured by Porsche between 2004–2006 in Leipzig, Germany. Sports Car International named the Carrera GT number one on its list of Top Sports Cars of the 2000s.

History

The development of the Carrera GT can be traced back to the 911 GT1 and LMP1-98 racing cars. Due in part to the FIA and ACO rule changes in 1998, both designs had ended. Porsche at the time had planned on a new Le Mans prototype for 1999. The car was initially intended to use a turbocharged flat-6, but was later redesigned to use a new V10 engine, pushing the project back to planned completion in 2000. The V10 was a unit secretly built by Porsche for the Footwork Formula One team in 1992, but later shelved. The engine was resurrected for the Le Mans prototype and increased in size to 5.7 litres. Unfortunately the project was canceled after two days of testing for the first car, in mid-1999, mostly due to Porsche's wish to build the Cayenne SUV with involvement from Volkswagen and Audi, thus requiring engineering expertise to be pulled from the motorsports division. It was also speculated that VW-Audi chairman Ferdinand Piëch wanted Audi's new Le Mans Prototype, the Audi R8 not to face competition from Porsche in 2004.

Porsche did keep part of the project alive by using the 5.5 L V10 from the prototype in a concept car shown at the 2000 Geneva Motor Show, mainly in an attempt to draw attention to their display. Surprising interest in the vehicle and an influx of revenue provided from the Cayenne helped Porsche decide to produce the car, and development started on a road-legal version that would be produced in small numbers at Porsche's new manufacturing facility in Leipzig. Porsche started a production run of Carrera GTs in 2004, shipping the units with an MSRP of $440,000 USD and a dealer invoice price of approximately $414,800 USD. In addition, the delivery charge could be as much as $5,000 USD. The first Carrera GT went on sale in the US on January 31, 2004.

Originally a production run of 1,500 cars was planned. But Porsche announced in August, 2005 that it would not continue production of the Carrera GT through 2006, citing discontinuation was due to changing airbag regulations in the US. As of May 6, 2006, 1,270 GT's had been manufactured, with 604 being sold in the United States.

Design

5.7 litre V10 engine

Front

The Carrera GT is powered by a 5.7 litre V10 engineproducing 612 PS (450 kW; 604 hp) , whereas the original concept car featured a 5.5 litre version rated at 558 hp (416 kW). Porsche claims it will accelerate from 0 to 100 km/h (62.1 mph) in 3.9 seconds and has a maximum speed of 330 km/h (205 mph), although road tests indicated that in reality the car can accelerate from 0-60 mph (97 km/h) in 3.5 seconds and 0-100 mph (160 km/h) in 6.8 seconds. The Carrera GT has a basic five colour paint scheme which includes Guards Red, Fayence Yellow, Basalt Black, GT Silver and Seal Grey. Custom colours were also available from the factory. A traditional six-speed manual transmission is the only available transmission. Attached to this gearbox is a beechwood gearknob which pays homage to the wooden gearknob used in the Porsche 917 Le Mans racers. In its second year of production, a limited edition carbon fibre knob was also made available.

The Carrera GT has large side inlets and air dams that help cool the large V10 engine framed by the carbon fibre rear bonnet. Fitted with Porsche's latest Carbon fibre-reinforced Silicon Carbide (C/SiC) ceramic composite brake system, the 15-inch (380 mm) SGL Carbon disc brakes make an impressive appearance underneath the 19 inch front and 20 inch rear wheels. Similar to other Porsche models, such as the911, the GT includes an automated rear wing spoiler which deploys above 70 mph (110 km/h).

The interior is fitted with soft leather. Bose audio system and navigation systems are available as options. In typical Porsche fashion, theignition is to the left of the steering wheel. This placement dates back to the early days of Le Mans racing when drivers were required to make a running start, hop into their cars, start them and begin the race. The placement of the ignition enabled the driver to start the car with his left hand and put it in gear with his right.

Technical specifications

• Engine
  • Drivetrain layout: Mid-engine RWD
  • Engine Type: 68° V-10, alum block/heads
  • Valve Gear: DOHC, 4 valves/cyl, variable valve timing on intake camshafts, sodium-cooled exhaust valves
  • Bore x stroke: 3.86 in (98.04 mm) x 2.99 in (75.95 mm), Nikasil coated bores , forged titanium connecting rods, forged pistons
  • Displacement, ci/cc: 349.8/5733
  • Compression ratio: 12.0:1
  • Max SAE net horsepower: 612 hp (456 kW) at 8,000 rpm
  • Max SAE net torque,: 435 lb·ft (590 N·m) at 5,750 rpm
  • Specific output, hp/liter: 105.5
  • Weight to power, lb/hp: 5.4
  • Transmission: 6-speed manual, two plate ceramic dry clutch (PCCC-Porsche Ceramic Composite Clutch)
  • Redline: 8,400 rpm

• Body
  • Cargo volume: 2.7 cu ft (76 L)
  • Ground clearance: 3.4 in (86 mm)

• Fuel consumption for 2004 model
  • EPA Rated city, highway in mpg: 9 mpg_-US (26 L/100 km; 11 mpg_-imp)/15 mpg_-US (16 L/100 km; 18 mpg_-imp)
  • Range: 241 miles (388 km)
  • Tank in gal: 24.3 US gal (92 L; 20 imp gal)

Performance

• Drag Coefficient: 0.39
• 0-60 mph (97 km/h) : 3.6 seconds
• 0-100 mph (160 km/h) : 7.3 seconds
• 1/4 mile: 11.1 seconds @ 133.4 mph (214.7 km/h)
• Top speed: 201.5 mph (324.3 km/h)
• elasticity 80–120 km/h 4,0 seconds (in fifth gear) (official data)

• Braking 100 mph (160 km/h) to 0: 277 feet (84 m)
• Braking 60 mph (97 km/h) to 0: 101 feet (31 m)
• 200 ft (61 m) skidpad, ave g: 0.99

Technology

The Porsche Carrera GT's carbon-ceramic (silicon carbide) disc brake

Notable technology includes a pure carbon fiber monocoque and subframe, dry sump lubrication and inboard suspension. The carbon fiber monocoque and subframe were produced and assembled by ATR Composites Group of Italy. The spoiler of the Carrera GT extends into the air when the car reaches about 70 miles (110 km) an hour and evens out the air flow, which causes less drag. The Carrera GT radiator is about five times the size of a 911 Turbo's. Front and rear suspension consist of pushrod activated shock absorbers and dampers with front and rear anti-roll bars.

Gallery

• 

  Porsche Carrera GT – Front
 
• 

  Porsche Carrera GT – Rear
 
• 

  Porsche Carrera GT Interior
 
• 

  Porsche Carrera GT

>>Porsche 918

Porsche 918

Porsche 918 Spyder

Manufacturer	Porsche
Production	Limited production series
Predecessor	Porsche Carrera GT
Successor	TBA
Class	Roadster
Body style	2-door roadster
Layout	Mid engine four wheel drive
Engine	3.4 L 500 horsepower (370 kW) V8 (9,200 rpm) with three electric motors delivering 218 horsepower (163 kW)
Transmission	7-speed PDK dual-clutch
Wheelbase	2,650 mm (104.3 in)
Length	4,497 mm (177.0 in)
Width	1,928 mm (75.9 in)
Height	1,091 mm (43.0 in)
Kerb weight	1,490 kilograms (3,300 lb)
Designer	Michael Mauer

The 918 RSR at the NAIAS 2011

The 918 RSR at the Geneva Motor Show

The Porsche 918 Spyder is a mid-engined sports car designed by Porsche and first shown as a concept at the 80th edition of the Geneva Motor Show in March 2010. The Spyder is powered by a 3.4 litre V8 engine, developing 500 horsepower (370 kW), with three electric motors delivering an additional 218 horsepower (163 kW). It is the first plug-in hybrid car from Porsche. Porsche later announced a limited production of the vehicle.

At NAIAS 2011, Porsche unveiled the RSR racing variant of the 918, which combines hybrid technology first used in the 911 GT3 R Hybrid, with styling from the 918 Spyder.

Spyder

The 918 Spyder is a mid-engined two seater sports car, designed by Michael Mauer, that is powered by a 3.4 liter V8 engine (500 hp/370 kW) which is a development of the engine used in the RS Spyder Le Mans Prototype racing car. This is supplemented by three electric motors delivering an additional 218 horsepower (163 kW). The transmission is a 7-speed gearbox coupled to Porsche's own (PDK) double clutch system delivering power to the rear axle. Two electric motors drive the front wheels directly through a fixed ratio while a third electric motor is connected to the transmission and gives additional power to the rear wheels. This gives the 918 Spyder a 0–100 km/h time in just under 3.2 seconds and a top speed of over 320 kilometres per hour (200 mph). The energy storage system is a liquid-cooled lithium-ion battery positioned behind the passenger cell. In addition to the plug-in recharge the batteries can also be charged by regenerative braking and by excess output from the engine when the car is coasting. CO₂ emissions are 70 g/km and fuel consumption is 3 L/100 km (94 imperial mpg/78 us mpg). The 918 Spyder offers 4 different running modes: E-Drive allows the car to run under battery power alone, using the rear electric motor only, giving a range of 16 miles (26 km). Three hybrid modes (Hybrid, Sport and Race) use both the engine and electric motors to provide the desired levels of economy and performance. In Race mode a push-to-pass button is available to deliver additional electrical power.

The chassis is a carbon-fibre-reinforced plastic monocoque. Magnesium and aluminium are extensively used in the construction of the car which helps keep the 918 Spyder's weight down to 1,490 kilograms (3,300 lb).

On July 28, 2010, after 2000 declarations of interest, the Supervisory Board of Dr. Ing. h.c. F. Porsche AG, Stuttgart, gave the green light for series development of the Porsche 918 Spyder. The 918 will be produced in a limited series. It will be developed in Weissach and assembled in Zuffenhausen.

RSR

At the 2011 Auto show in Detroit, Porsche unveiled the RSR racing variant of the 918 Spyder. Instead of using plug-in hybrid technology, power for the two electric motors is provided by a flywheel accumulator KERS system that sits beside the driver in the passenger compartment. The V8 is a further development of the direct injection engine from the RS Spyder race car developing 563 horsepower (420 kW). The electric motors on the two front wheels each provide an additional 102 horsepower (76 kW), giving a peak power output of 767 horsepower (572 kW). The six speed gearbox is a development of the unit from the RS Spyder.

Video games appearances

The 918 Spyder is subject to numerous video games appearances, most notably in several games of the third generations of Need for Speed series. It was originally featured in the game Need for Speed: Hot Pursuit as a drivable vehicle. Unlike the other Porsche cars featured in the game, it is not available in a police livery. It was later featured in Shift 2: Unleashed and Need for Speed: The Run (The Run only featured the RSR variant). The car could have been featured into Forza Motorsport 4 Autovista mode, but licensing flaws couldn't let Porsches be in that game. Forza 4 is going to bring out a pack for porsche this is one of the cars that will come into the game.