Porsche 991

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Porsche 991
2013 Porsche 911 Carrera 4S (991) (9626546987).jpg
Overview
ManufacturerPorsche
Also calledPorsche 911
Porsche Carrera
Production2012–present
AssemblyStuttgart, Germany
Body and chassis
Body style2-door coupe
2-door convertible
LayoutRear engine, rear wheel drive / all wheel drive
Powertrain
Engine3.4 L H6
3.8 L H6
Transmission7-speed manual
7-speed PDK
Dimensions
Wheelbase96.5 in (2,451 mm)
Length176.8 inches (4,491 mm)
Width71.1 in (1,806 mm)
Height50.9 in (1,293 mm)
Curb weight1,395 kilograms (3,075 lb)
Chronology
PredecessorPorsche 997
 
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Porsche 991
2013 Porsche 911 Carrera 4S (991) (9626546987).jpg
Overview
ManufacturerPorsche
Also calledPorsche 911
Porsche Carrera
Production2012–present
AssemblyStuttgart, Germany
Body and chassis
Body style2-door coupe
2-door convertible
LayoutRear engine, rear wheel drive / all wheel drive
Powertrain
Engine3.4 L H6
3.8 L H6
Transmission7-speed manual
7-speed PDK
Dimensions
Wheelbase96.5 in (2,451 mm)
Length176.8 inches (4,491 mm)
Width71.1 in (1,806 mm)
Height50.9 in (1,293 mm)
Curb weight1,395 kilograms (3,075 lb)
Chronology
PredecessorPorsche 997

The Porsche 991 is the internal designation for the seventh generation Porsche 911 which was unveiled at the 2011 Frankfurt Motor Show on 15 September as the replacement for the 997. An initial release of photos and information was revealed by Porsche on 23 August 2011.[1]

The current direct injection 3.8-litre flat-six engine from the Carrera S remains, with power increasing to 400 PS (294 kW; 395 hp). A Power Kit (option X51) is available for the Carrera S, increasing power to 430 hp. The Carrera engine is a 3.4-litre, producing 350 PS (257 kW; 345 hp). The car features an optional stop/start system and also electro-mechanical power steering. New for the first time on a 911 model are electronic parking brakes (button selectable) and 20 inch diameter wheels. The car also features a new seven-speed manual gearbox, a first for a production car, along with an improved seven-speed Porsche Doppelkupplung (PDK) dual clutch transmission.[2]

With the introduction in 2012 of the latest GT3 model came the announcement of active rear steering. It is claimed by Porsche to provide higher lateral dynamics than previously available. Car speed inputs determine whether the rears steer in the same or opposite direction of the front wheels.

Compared to the outgoing 997, the 991 wheelbase has increased by 100 mm (3.9 in) to 2,450 millimetres (96.5 in), with the overall length up by 70 mm (2.8 in) to 4,490 millimetres (176.8 in).[3] A new transaxle was developed so that the rear wheels could be moved 76 millimetres (3 in) backward in relation to the position of the engine, which significantly improves the weight distribution and cornering performance of the new 911.[4][5] Due to the use of high-strength steels, aluminium and some composites the weight has been reduced to 1395kg for the manual Carrera S and 1420kg[6] for the Carrera S equipped with the Porsche Doppelkupplung (or the convertible models - 1450kg for the manual Carrera S and 1470kg[7] for the Carrera S equipped with the Porsche Doppelkupplung).

Images of the 991 were widely published on the internet on 18 August 2011, prior to the car's official debut.[8] The photos revealed Porsche had taken an evolutionary design step, in keeping with the previous generation 997 and 996.

The Porsche 991 was titled World Performance Car 2012[9] shortly after famed Porsche designer Ferdinand Alexander Porsche died.

Turbo and Turbo S[edit]

The 991 Turbo has a twin-turbocharged 3.8 litre engine generating 520 horsepower and 487 pound-feet of torque. The S version has 560 horsepower and 516 lb-ft of torque. Both vehicles have all-wheel drive and a seven-speed dual clutch sequential transmission. The Turbo S can reach 0 to 60 miles per hour (0 to 97 km/h) in 2.9 seconds per Porsche.[10]

References[edit]

  1. ^ "OFFICIAL: 2012 Porsche 911 (991) revealed". AUSmotive.com. Retrieved 23 August 2011. 
  2. ^ Ben Barry (12 October 2011). "Porsche 991: our comprehensive guide to the new 911". Car Magazine. Retrieved 16 January 2012. 
  3. ^ Neil, Dan (11 February 2012). "Porsche's Magnificent First Stab at the New 911". The Wall Street Journal. p. D13. 
  4. ^ Tim Pollard (4 November 2010). "Porsche 911: 2011’s new 991 generation scooped". Car Magazine. Retrieved 3 August 2011. 
  5. ^ Ben Pulman (26 July 2011). "Porsche 911 (2011) the clearest spyshots yet". Car Magazine. Retrieved 3 August 2011. 
  6. ^ "Porsche 911 Carrera S Technical Specs". Porsche.com. Retrieved 18 August 2012. 
  7. ^ "Porsche 911 Carrera S international Technical Specs". Porsche.com. Retrieved 24 March 2013. 
  8. ^ "2012 Porsche 911 revealed in leaked images". AUSmotive.com. Retrieved 18 August 2011. 
  9. ^ "Porsche 911 Named 2012 World Performance Car". sacbee.com. Retrieved 9 April 2012. 
  10. ^ Morrison, Mac; Kable, Greg (November 25, 2013). "Time Bender". Autoweek: 27–29. ISSN 0192-9674. 

External links[edit]