Nissan GT-R
Nissan GT-R
The Nissan GT-R is a sports car produced by Nissan released in Japan on December 6, 2007, Canada and the United States on July 7, 2008, and the rest of the world in March 2009.
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History
Between 1969 and 1974, and again between 1989 and 2002, Nissan produced a high performance version of its Skyline range called the Nissan Skyline GT-R. This car proved to be iconic for Nissan and achieved much fame and success on road and track. The Nissan GT-R, although no longer carrying the "Skyline" badge, has heritage in the Nissan Skyline GT-R. Like the Skyline GT-Rs R32 through R34, the Nissan GT-R is four-wheel drive with a twin-turbo 6 cylinder engine and has the signature 4 round tail lights; however, the evolutionary, incremental changes between Skyline models R32 through R34 have been done away with. The four-wheel-steering HICAS system has been removed, the former straight-6 RB26DETT engine has been replaced with a new V6 VR38DETT. Because of the GT-R's heritage, the chassis code for the all-new version has been called CBA-R35, or 'R35' for short (where CBA is the prefix for emission standard), carrying on the naming trend from previous Skyline GT-R generations. The GT-R has also retained its Skyline predecessor's nickname Godzilla, given to it by the Australian motoring publication Wheels in its July 1989 edition.
Production
Production model
The production version of the GT-R debuted at the 2007 Tokyo Motor Show, launching in the Japanese market on December 6, 2007. The U.S. official launch was 7 months later on July 7, 2008. Universal Nissan in Los Angeles provided a customer with the delivery of a new GT-R, fresh from the production line at 12:01 am, on July 7, 2008. The Canadian launch was also in July 2008. Europe became the third consumer market, where it launched in March 2009. The large disparity in initial marketing between these regional releases is due to Nissan having to build GT-R performance centers where the car is serviced. Also the engine and rear-mounted dual-clutch gearbox are assembled by hand, thus limiting global production capacity to around 1000 cars a month.
Design
Nissan chief creative officer, Shirō Nakamura, has likened the new GT-R to the giant robots of the Gundam series. Nakamura stated: "The GT-R is unique because it is not simply a copy of a European-designed supercar; it had to really reflect Japanese culture."
Nakamura noted that the GT-R's square lines and vents were influenced by Gundamrobots. Nissan's American designers sculpted the rear three quarters of the vehicle, while their European designers sculpted the roofline.
Polyphony Digital, creators of the Gran Turismo series of motor racing video games, were themselves involved in the development of the GT-R, having been contracted to design the GT-R's multifunction display.
The Nissan GT-R's Body Construction has a Premium Midship (PM) platform with hybrid unibody assembled using high-precision, ultra-low-tolerance jigs similar to racecar construction. Aluminum is used for the hood, trunk lid and outer door skins, with die-cast aluminum front shock towers and inner door structures. All outer body panels stamped using multiple-strike coining process for exceptional rigidity and precision. The GT-R also has a Carbon-composite front crossmember/radiator support. Its paint is an advanced 6-stage paint process with double clear coat and chip-resistant paint in critical areas. An optional color is Super Silver special metallic paint, with 8-stage process, including three clearcoats and hand-polishing to achieve a lustrous, liquid effect. The Premium Nissan GT-R has a body-colored rear spoiler whereas the Black Edition has a dry carbon-fiber rear spoiler. Both the Premium and Black Edition GT-R are fitted with high intensity discharge (HID) headlights, automatic on/off headlights, LED daytime running lights, LED taillights and brake lights, dual heated body-color power outside mirrors, power folding outside mirrors, flush-mounted aluminum door handles, four 5" exhaust outlets with polished tips and UV-reducing solar glass.
For the 2014 model year, Nissan introduced a limited production Track Edition GT-R, which gets all the same features as the Black Edition, but adds a more aggressive suspension, carbon fiber air inlets, better brake cooling, a unique front spoiler, and new black and gray leather Recaro front seats. Nissan have also removed the rear seats, saving 22 lbs over the Black Edition.
Specifications
The Nissan GT-R is powered by the VR38DETT V6 engine, a 3,799 cc (3.8 L; 231.8 cu in) DOHC V6 with plasma transferred wire arc sprayed cylinder bores.Two parallel Ishikawajima-Harima Heavy Industries (IHI) turbochargers provide forced induction. Models manufactured between 2007 and 2010 produce a manufacturer-claimed engine output of 492 PS (362 kW; 485 hp) at 6400 rpm and 434 lb·ft (588 N·m) at 3200–5200 rpm. The engine also meets California Air Resources Board Ultra Low Emission Vehicle (ULEV) standards. A curb weight of 1,730 kg (3,800 lb) or 1,736 kg (3,830 lb) with side curtain airbags is achieved using a jig welded steel chassis with aluminum used for the hood, trunk, and doors. A rear mounted six-speed Borg Warner designed dual clutch semi-automatic transmission built by Aichi Machine Industry is used in conjunction with the ATTESA E-TS system to provide power to all four wheels and along with Nissan's Vehicle Dynamics Control (VDC-R) to aid in stability. Three shift mode scan also be selected for various conditions. Beginning in 2010, engine power and torque were upgraded to 390 kW (530 PS; 523 hp) at 6400 rpm and 612 N·m (451 lbf·ft) at 3200–6000 rpm respectively. Models produced in 2012 again featured improved engine output (404 kW (549 PS; 542 hp) at at 6400 rpm and 628 N·m (463 lbf·ft) at 3200–5800 rpm). In the near future, it is speculated that the GT-R might even be available as a hybrid.
2012 Facelift
The revised GT-R features an engine with revised mapping, changes to valve timing, larger inlets and a revised exhaust system which boosts rated power to 530 bhp and 612Nm of torque from 3200 to 6000rpm. Changes also include a new more rigid front strut bar made from carbon composite, larger front brake rotors, new lighter and stiffer wheels, and revised Dunlop tires. Cosmetic changes include a new front bumper with integrated LEDs. The front bumper improves cooling to the radiator and front brakes while reducing drag. A new rear diffuser improves downforce and also includes additional rear cooling ducts. The interior was revised to improve the quality. The revised GT-R went on sale in Japan from mid November 2010 and February 2011 in Europe, North America and other regions.
SpecV
Nissan introduced the GT-R SpecV on January 7, 2009 at the 2009 Tokyo Auto Salon. Exterior changes from the base GT-R consist of a carbon fiber rear spoiler, grille, and brake ducts, along with an exclusive Ultimate Black Opal paint job. Interior changes include a set of carbon fiber Recaro front seats with the rear seats being completely removed. Carbon fiber covers the center storage box, instrument panel, and replaces the majority of the interior trim.
The GT-R SpecV is powered by the standard twin-turbo 3,799 cc (3.8 L; 231.8 cu in) V6 with no increase in horsepower. A new high gear boost controller that allows a temporary increase in boost pressure to the IHI twin turbochargers, now larger than those on the standard GT-R, should deliver more torque in mid to high-range revs. Other mechanical changes include a titanium exhaust, reworked suspension, carbon ceramic brakes, and 20-inch (510 mm) Nismo wheels. Overall weight is decreased by 132 lb (60 kg) over the standard GT-R.
Japan sales began on February 2, 2009 at seven preselected dealers who are staffed by mechanics with special GT-R SpecV training and are knowledgeable of racing circuit driving. Pricing is set at ¥15,750,000 (over US$160,000). Nissan has yet to announce any plans to sell the Spec V in the USA.
In Auto Express testing the SpecV posted a 0–60 mph time of 3.20 seconds, pulled 1.12 g on the skidpad and 74.7 mph in the slalom. An earlier tested Corvette ZR1 (2011) resulted in an identical slalom speed but a lower 1.06 g on the skidpad.
Performance
Nissan claims the GT-R can reach a top speed of 193 mph (311 km/h), Motor Trend recorded a top speed of 195.0 mph (313.8 km/h). In tests the original production model was shown to be capable of achieving 0-60 mph (97 km/h) times as low as 3.2 seconds using "launch control." Owners expressed concern that duplicating the times achieved in these tests would void their factory warranty. Nissan's chief vehicle engineer Kazutoshi Mizuno has indicated that he has never used the term "launch control", which refers to the act of turning off vehicle dynamic control (VDC) and launching the car at around 4500 rpm. However, Nissan's director of product planning John Wiener stated in an interview with Jay Leno that "we (Nissan) actually offer a 'launch mode'". The GT-R user's manual states that turning off the VDC is only meant for escaping low-traction situations such as mud or snow. Nissan has re-programmed the 2010 model year GT-R to reduce the engine speed at launch to around 3,000 to 3,500 rpm with VDC enabled, which is meant to improve acceleration times. The new programming was also installed on old 2009 vehicles still in Nissan's inventory, and is available for existing 2009 vehicles. The new updated GT-R however now has a launch mode, which Nissan calls "R-Mode Start", and is activated by setting the Transmission and VDC to "R" mode (the Suspension settings can be left in normal mode), holding the brakes, then the throttle, and finally releasing the brakes. The engine speed is now held at 4,000 rpm in this mode, and it no longer voids the warranty. However, the system allows a maximum of 4 consecutive hard launches before locking itself out, after which it can be unlocked by driving normally for 1.5 miles. The increased engine output of later models combined with the "R-Mode Start" has lowered the 0-60 mph (97 km/h) time to 2.7 seconds. Motor Trend achieved a standing quarter-mile time of 11.6 s at 120.0 mph (193.1 km/h). Autocar achieved a 0-100 mph (160 km/h) time of 8.5 seconds.
With a manufacturer claimed lap time of 7:26.7 on the base model's Dunlop tires and previously 7:29 min on standard Japanese market tires, the GT-R is currently one of the fastest production cars to lap the Nürburgring circuit,although Porsche accused Nissan of falsifying those claims in September 2008. Porsche claims to have conducted their own test of the GT-R using no modifications and stock tires and achieved a best time of 7:54. Nissan officially disputed Porsche's claim in October 2008.
In another Autocar comparison with the PDK 911 Turbo (997.2) and V10 Audi R8 on the Castle Combe Circuit the GT-R's laptime of 1:14.6, was faster than the 911's time of 1:14.9 and the R8's 1:15.5 lap time. In December, Auto, Motor und Sport published a comparison between the GT-R, PDK 911 Turbo (997.2) and the Audi R8 V10. Around the 'small' Hockenheimring circuit, the GT-R achieved a time of 1:12.0 against the 911's 1:11.5 and the Audi's 1:12.3. The sport auto magazine had tested the GT-R on the 'small' Hockenheimring circuit and had recorded a lap time of 1:10.7 during the full "supertest". In July 2009, CAR Magazine published a comparison of the revised 911 GT3 (997.2) and the GT-R at the Nurburgring. A time of 7:49 was achieved for the GT3 and 7:51 for the GT-R. It should be noted that these times are not directly comparable to previous Nurburgring tests, as they included a section of track near the pits normally excluded from timing. At Spring Mountain Motorsports Ranch Road and Track managed a 1:20.9 lap time compared to the ZR1's time of 1:20.1 and the 911 Turbo's (997.2) time of 1:21.3. In another Motor Trend comparison at the Streets of Willow, driver Randy Pobst's laptime of 1:20.25 in the facelifted GT-R was slightly faster than the competing Corvette Z06 equipped with optional carbon ceramic brake rotors.
The German magazine sport auto achieved a time of 7:50 on the Nürburgring with a car supplied to them by Nissan during an initial short test in 2007, while testing by Drivers Republic of a GT-R and GT2 in stock form resulted in times of 7:55 for the GT-R and 7:49 for the GT2 respectively. Both tests were conducted in partially damp conditions and by automotive journalists rather than professional track drivers. In 2009, in a full "super test" sport auto achieved a time of 7:38 minutes on the Nürburgring with a standard GT-R driven by Horst von Saurma, identical to a later "super test" Corvette ZR1 time. In a first test with the facelifted GTR model, 'sport auto' recorded a lap time of 7:34 on the Nürburgring with a standard GT-R driven by Horst von Saurma.
Comparison tests
The GT-R has frequently featured in head to head track comparisons against competing vehicles conducted automotive press. Autocar performed several head to head comparisons involving the GT-R and competing vehicles. In the first, against the Porsche 911 GT3 and BMW M3, the GT-R was declared to be faster around the test track. A second test on the Isle of Man on a 4.5 km closed public road, featured with the Audi R8, Lotus Elise, and Lamborghini Gallardo LP560-4. The GT-R's time of 1:56.69 was behind the Gallardo's 1:55.99 time, however because the GT-R was Japanese-spec its top speed was limited to 112 mph, which led the journalists to believe it could have performed better. In CAR Magazine's test with the 911 Turbo, BMW M3, and Audi R8 at Rockingham the GT-R was the fastest. Evo tested the GT-R alongside the 911 GT3 at the Bedford Autodrome circuit, the GT-R ran a 1:21.7 lap time compared to GT3's 1:22.6 time. In a Fifth Gear test with the 911 Turbo, Bruno Senna was able to achieve faster lap times in the GT-R. Car and Driver compared the GT-R on Reno-Fernley Raceway with the 911 Turbo and BMW M3, the GT-R's lap time of 1:26.7 made it the fastest on the track. Road & Track was able to achieve quick lap times with the car on Buttonwillow Raceway, clocking in at 1:56.9 which was over 5 seconds faster than the Chevrolet Corvette C6 Z06 and 911 Turbo. In an Edmunds.com 6-way test on the Streets of Willow and an improvised mountain road, the GT-R posted faster times than the Audi R8 and Porsche 911 Carrera. Auto Bild compared the GT-R with the 911 Turbo and V10 Audi R8 at Contidrome, the GT-R's time of 1:30.95 placed it ahead of both the Porsche 911 (1:31.75) and the Audi R8 (1:32.11).
On Willow Springs International Motorsports Park, Edmunds.com was able to achieve lap times of 1:25.09 with the 2009 GT-R compared to the Corvette ZR1's time of 1:23.87. On the Las Vegas Motor Speedway infield road course, Motor Trend was able to achieve lap times with the GT-R that were almost as fast as the Ferrari 599 GTB Fiorano and 911 GT2 and 1.2 seconds slower than a Corvette ZR1. The pre-2011 GT-R currently holds a lap time of 1:19.7 around the Top Gear Test Track, with the Facelifted GT-R holding a time of 1:17.8, equaling the Pagani Zonda F Clubsport, beating the Chevrolet Corvette ZR1 by 2.6 seconds(Damp Lap For ZR1), and being the fastest Japanese car to lap the track. On Top Gear Australia's test track the GT-R posted a lap time of 1:07.06, putting it in second place 0.14 seconds behind the 997 GT2.
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