Fourth generation .28V36.2C 2006.E2.80.932015.29 Infiniti G-series (Q40/Q60)

1 fourth generation (v36, 2006–2015)

1.1 pre facelift models

1.1.1 2007–2008 g35 sedan
1.1.2 infiniti coupe concept (2006)
1.1.3 2008 g37 coupe
1.1.4 2009-2013 g37 sedan , coupe
1.1.5 2009-2013 g37 convertible


1.2 facelift

1.2.1 2011-2012 infiniti g25
1.2.2 infiniti performance line (ipl)

fourth generation (v36, 2006–2015)

the five-year development program v36 began in 2002, conclusion in 2006 sedan , 2007 coupe. design work started in 2003 , continued 2004, when hideo komuro s design chosen sedan. coupe design process later completed in first half of 2005, conceptual variant being readied public introduction. redesigned infiniti g sedan , coupe introduced 2007 , 2008 model years, respectively. fourth generation g sedan launched in september 2006 2007 model heavily revised 3.5 l vq35hr engine , 5-speed automatic standard transmission, 6-speed manual available. redesigned second generation g coupe launched in june 2007 2008 model larger 3.7 l vq37vhr, first infiniti engine feature vvel. came either 5-speed automatic or 6-speed manual. manual g models include sport package. 2009 g37 convertible launched in june 2009. 2009 model g sedan followed suit using same vq37vhr engine. 2009 5-speed automatic replaced all-new 7-speed , both sedan , coupe gained self-healing paint finish infiniti ex. v36 platform continued 2010 numerous interior changes , upgrades mid-product cycle exterior update sedan. in late 2010 infiniti g25 went on sale 2011 model, featuring smaller 2.5l version of vqvhr engine allow g better compete lexus is250 , bmw 328i.

pre facelift models
2007–2008 g35 sedan

the g35 sedan underwent major revision 2007 model year. 2nd generation front-mid (fm) platform underpinning new g shared in part infiniti m , has several structural reinforcements around engine , rear floor area, along 3 times more laser welding , 16 percent more spot welds old version; overall body stiffness improved 40 percent. single-pivot lower control arms in front replace 1st gen model s twin lower links. g35x sedan uses attesa e-ts all-wheel drive system.

along these chassis refinements, sport package equipped models came firmer rear shocks, bigger front brake calipers, , larger 13-inch (330 mm) rotors around (up 12.6/12.1-inch front/rear). sport package equipped cars viscous limited slip differential. all-new active steering package can ordered sport package equipped models. features planetary gearset on steering shaft (similar bmw), varies steering ratio between 12.0:1 , 18.5:1. rear-wheel steering system induces 1 degree of rear steer included in package. active steering package includes stiffer shocks sport package @ 4 corners , ride has been repeatedly reported being stiff customers except enthusiastic drivers. base , journey model 17-inch (430 mm) tires bump 215s 225s, while 18-inch (460 mm) upgrade (included in sport or wheel package) 225/50-zr18 front , 245/45-zr18 rear size smaller in front , larger in 1st gen model s all-around 235/45r18s.

the updated vq35hr more powerful (306 hp (228 kw) @ 6,800 rpm , 268 lb·ft (363 n·m) @ 4,800 rpm), more fuel efficient, , more responsive previous vq35de. hr stands high revolution or high response . dual-path intake (two air cleaners, throttle bodies, etc.) lowers intake tract restriction 18 percent , new equal-length exhaust manifolds lead mufflers 25 percent freer flowing. intake said benefit ram-air effect adding 3 horsepower @ 60 mph. electrically actuated variable valve timing new on exhaust cams broadens torque curve. new engine block maintains same bore , stroke, connecting rods lengthened , block deck raised 8.4 mm reduce piston side-loads. 80% of internal components have been strengthened or redesigned handle increased 7,500 rpm red line, along use of larger crank bearings main bearing caps reinforced rigid ladder-type main cap girdle. increase in compression ratio 10.3:1 10.6:1 these changes add 26 more horsepower. torque down 2 pound force-feet (2.7 n·m) old de engine (268 vs. 270). engine sits 15 mm lower in chassis lower center of gravity.

although horsepower rating increases 8 hp compared latest version of previous de engine, real horsepower difference greater due nissan adopting 2006 sae hp measurement guidelines horsepower ratings in 2007. according consumer reports infiniti g35 journey sedan 5-speed automatic transmission can reach 0–60 mph (0–97 km/h) in 5.4 seconds, , 1/4-mile (~400 m) 13.8 seconds. according newly revised epa guidelines, fuel economy estimated @ 17 mpg‑us (14 l/100 km; 20 mpg‑imp) in city , 24 mpg‑us (9.8 l/100 km; 29 mpg‑imp) on highway. fuel economy virtually identical between generations, second generation earning 1-mile-per-us-gallon (0.43 km/l; 1.2 mpg‑imp) edge in highway driving (both measured using epa 2008 guidelines).

second generation g35 performance: according motor trend , automobile magazine, previous model 2005 g35 6mt sedan reached 0-60 mph in 5.7 seconds , 1/4-mile in 14.1 seconds. gives new 2nd gen g35 v36 sedan solid 0.4 , 0.3 second performance advantage respectively. 5 speed automatics on par manual transmission cars performance perspective. in 2008 road & track comparison test new 2008 cadillac cts 5-speed automatic transmission equipped g35 sedan achieved 0-60 time of 5.3 seconds, 0-100 time of 13.1 seconds , 1/4-mile time of 13.8 seconds @ 102.9 mph (165.6 km/h). v36 g35 reaches 60 mph in low 5 second range; 100 mph in around 13 seconds , runs quarter-mile in 13.8 seconds. 200 lbs. heavier wheel drive versions approx. 0.3 seconds behind in each of these measurements.

models (including since 2009 g37):

g35/g37 - 3.5/3.7 l v6, 306 hp (228 kw) / 328 hp (245 kw),
g35/g37 journey - 3.5/3.7 l v6, 306 hp (228 kw) / 328 hp (245 kw), weight 3,628 lb (1,646 kg)
g35x/g37x awd - 3.5/3.7 l v6, 306 hp (228 kw) / 328 hp (245 kw) 4wd, weight 3,882 lb (1,761 kg)
g35/g37 sport 6mt - 3.5/3.7 l v6, 306 hp (228 kw) / 328 hp (245 kw), weight 3,709 lb (1,682 kg)
g37 convertible - 3.7 l v6, 325 hp (242 kw), weight 4,083 lb (1,852 kg)
g37 convertible sport 6mt - 3.7 l v6, 325 hp (242 kw), weight 4,149 lb (1,882 kg)

in addition, special edition of g37 entered sema gran turismo awards in 2008.

infiniti coupe concept (2006)

developed mid-2005 november 2005, concept vehicle previewed design of v36-based g coupe. included full-length glass panel roof, modulated front fenders , hood, deep front spoiler , large projector headlights, polished bare metal-look paint, compact camera outside rearview mirrors, hidden door handles , large 20-inch, 9-spoke painted aluminum-alloy wheels.

the vehicle unveiled in 2006 north american international auto show.

2008 g37 coupe

infiniti g37 s coupe (europe)

in 2007, redesigned g coupe unveiled @ 2007 new york international auto show , available sale 2008 model. unlike 2007 , 2008 g sedan given new 3.7 l 330 hp (250 kw) v6 vq37vhr engine 1 model year still paired 5-speed automatic transmission , named g37. in japan, g37 joined updated g sedan under nissan skyline (v36) nameplate. marks first use of nissan s vvel (variable valve event , lift) system on production vehicle in market.

2009-2013 g37 sedan , coupe

g35/37 transmission gear ratios.

for 2009 model g35 sedan replaced g37 sedan. g37 sedan first unveiled @ geneva motor show european market. exterior, interior , options remain identical 2008 g35 model range sedan sports 3.7-liter vq37vhr vvel v6, rated 328 hp (245 kw) @ 7,000 rpm , 269 lb·ft (365 n·m) @ 5,200 rpm introduced in g37 coupe. although engine gains 0.2 kg·m (2 n·m; 1 lb·ft) torque on vq35hr , torque value arrives @ later 5,200 rpm vs. 4,800 in vq35hr, torque curve improved , flattened across rpm range via nissan s new vvel (variable valve event , lift) variable valve timing resulting in better throttle response , low rpm torque. g37s vq37vhr engine has been touted car magazines , reviewers improvement on vq35hr engine adding more refinement , smoother engine operation, @ high rpm vq35hr engine criticized nvh , sounding strained, harsh , loud. criticized aggressive clutch engagement, notchiness of 6-speed manual in g35 , engine vibrations transferred through shifter , pedals in g35 6mt cars addressed in new g37 models.

the 2009 infiniti g37 anniversary art project vehicle

all 2009 models came standard infiniti s new seven-speed automatic transmission introduced on 2009 fx35 , fx50, updated previous five-speed transmission. g37 sedan or coupe equipped six-speed manual transmission specifying sport 6mt model. base, journey , x models not ordered manual transmissions, sport package included sport options of 6mt model (excluding manual transmission , hand lever parking brake), , available journey , x models.

the 2009 sport package (standard on sport 6mt cars, optional on journey , x models) included larger sport brakes 4-piston front/2-piston rear calipers 14-inch (360 mm) ventilated front rotors , 13.8-inch (350 mm) ventilated rear rotors, new sport wheel design 18-inch (460 mm) sedan , 19-inch (480 mm) on coupe, , viscous limited-slip differential (vlsd). sport package on g37 x awd sedans not include larger opposed piston brakes, nor include more aggressive steering rack, vlsd, or sport tuned suspension (the same package awd coupes includes rwd version, save more aggressive steering rack). brakes on non-sport models front 13-inch (330 mm) ventilated discs , rear 13-inch (330 mm) ventilated discs sliding calipers. g37 available g37, g37 journey, g37s 6mt , g37x awd models. major option packages remain premium package, sport package, nav package, tech package. 2009 models come standard self healing scratch shield paint employs soft polymer top coat can self heal small scratches , swirl marks.

even though final drive ratio vehicles equipped 7-speed automatic has been (numerically) reduced 3.69 3.36, new 7-speed automatic has lower first through fourth gear overall ratios old 5-speed automatic , 6-speed manual in 6mt cars (which retain old 3.69 final drive ratio). giving closer gear ratios in gears, match engine rpm better power demand, brings better acceleration while overdrive ratios in 6th , 7th gears reduces highway cruising rpm , improves fuel mileage. new 7-speed automatic retains drive sport (ds) shift mode , downshift rev matching (drm) feature of previous 5-speed automatic. paddle shifters standard on g37s models equipped 7-speed automatic. new engine/transmission combo did add weight car (3,590 lb. g37 vs. 3,508 g35 in identical trim).

g37x coupe uses attesa e-ts all-wheel drive system.

g37 coupe , sedan set on sale in september 2008 2009 models.

g37x coupe , g37 sedan unveiled in 58th annual pebble beach concours d elegance. pictures of g37 convertible first shown in monterey, while vehicle unveiled in 2008 los angeles auto show in november.

the 2009 infiniti g37 anniversary art project vehicle - version of g37 sport coupe inspired cirque du soleil commemorate infiniti s 20th anniversary. vehicle designed montreal artist heidi taillefer. vehicle set on tour @ various cirque du soleil shows , other events, eventual vehicle sale @ charity auction.

2009-2013 g37 convertible

infiniti g37 convertible



infiniti g37 cabrio

g37 convertible introduced in june 2009 media release 2009 model on v36 fm platform , design perspective based on g coupe.

the g convertible came equipped standard 325 horsepower (242 kw) 3.7-liter v6, backed choice of 7-speed automatic transmission available magnesium paddle shifters or responsive close-ratio 6-speed manual transmission. g convertible has curb weight of 4,149 lb (1,882 kg).

facelift

the facelift model 2011 g37 convertible (us)



2010-2011 infiniti g37 sedan (germany)

from november 2009, facelift 2010 model year g sedan commenced production , went on sale in january 2010. changes include revised fascia fog lamps moved head light cluster more traditional separate housings, new grill sedan mimicking 1 coupe, new optional navigation system both coupe , sedan (revised optional system available 2008 , 2009 g37s). other minor changes included new interior colors, trim, , lighting design dash , center display. several items options on 2008 , 2009 models became standard on 2010 g37s.

in march 2010 comparison test car , driver, infiniti g37 convertible came in third place out of 4 cars in convertible comparison behind bmw 328i , audi a5.

2010 model year refresh brought in revised headlight shape, along grille more similar of coupe variant.

in july 2010, coupe , convertible received refresh 2011 model year.

2011-2012 infiniti g25

infiniti debuted g25 sedan @ 2010 paris auto show. g25 powered 2.5 l v6 vq25hr producing 218 hp (163 kw) , 187 lb·ft (254 n·m) of torque. in motor trend 2012 comparison infiniti accelerated 0-60 in 7.5 seconds, on 2 seconds slower bigger brother, g37. g25 s jdm relative, nissan skyline 250 gt sedan features same engine, had been on sale several years already.

priced lower g37, g25 aimed compete entry-level luxury rivals such lexus is250, audi a4 , bmw 328i. compared g37, other smaller engine , fewer options (no six-speed manual transmission available, no navigation, no premium or technology packages in u.s. market), g25 otherwise identical , features choice of rear-wheel drive or attesa all-wheel drive.

2011 infiniti g37 coupe ipl

in 2012, g25 discontinued in united states.

infiniti performance line (ipl)

in july 2010 infiniti released new performance division, infiniti performance line (ipl). debut ipl offering g37 coupe 2011 model year, , later g37 convertible. ipl models featured retuned engine producing 348 hp (260 kw) , 276 tq. performance improvements included redesigned exhaust system, sportier suspension tuning, more direct steering feel. design changes made exterior including more aggressive front/rear bumpers , sideskirts, sportier 19 inch alloy wheels, , larger exhaust tips. inside, g37 ipl has red monaco leather seats. ipl g37 coupe , convertible available in 2 colours; graphite shadow gray metallic , malbec black. regular models, g37 ipl renamed q60 ipl beginning 2014 model year.

2013 infiniti g37 convertible ipl